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Garmin 172 GPS Receiver User Manual

Contents

1. ii Warnings and Cautions iii Warranty and Serial Number iv Capabilities v Packing List vi Table of Contents vii How To Index viii Section One Getting Started 1 21 Keypad Usage 1 Selecting Options 2 Entering Data 3 Initializing the Receiver Power On 4 Tour Backlighting 6 Simulator Mode 7 Main Pages Map Page 8 Map Cursor 9 Marking Waypoints 10 Using the NAV Key 11 Simulated Tour 12 Reviewing CreatingMap Waypoints 13 Map Sonar Split Page 14 Sonar Page 14 Compass Page 16 Highway Page 17 Changing
2. 24 Recon gure the Map page display 25 Adjust Sonar settings 33 Recon gure the Sonar page display 36 Access the Main Menu 67 Change units of measure statute nautical metric 85 Change the displayed time zone 86 View tide information 73 View celestial information 74 Set Alarms 90 Use the Find function 65 View a unit message 106 GPSMAP178CManual indd viii 3 19 2004 3 09 49 PM 1 Getting Started Keypad Usage ZOOM OUT Key The OUT key adjusts the map scale to display a larger area with less detail Zooms out ZOOM IN Key The IN key adjusts the map scale to display a smalle
3. 57 Creating 57 Following 58 List Page 59 Review 60 Editing 61 Active Route Page 64 Find Key 65 Find Options 66 Main Menu Page 67 GPS Tab 68 Tide Tab 73 Trip Tab 74 Celestial Tab 74 Track Tab 75 DSC Tab 77 Card Tabs 82 Temp Tab 83 Setup Tab 83 Comm Tab 86 Alarm Tab 90 Appendix A Installation 92 Appendix B LORAN TD 102 Appendix C Map Datums 104 Appendix D Messages
4. 106 Appendix E Navigation Terms 108 Appendix F Time Offsets 110 Appendix G Understanding Sonar 111 Appendix H Speci cations Unit Care 116 Appendix I Index 118 GPSMAP178CManual indd vii 3 19 2004 3 09 48 PM viii Introduction How To Index The list to the right is provided to help you quickly nd some of the more important procedures you may use on your new GPSMAP 178C TO DO THIS SEE PAGE S Turn the unit on or off 4 Adjust screen backlighting 6 Enter data and select options 3 Learn how to operate the unit s function keys 1 Mark your present location as a waypoint 44 Go to a destination 53 Create and use a route 57 Pan using the map arrow 23 Zoom in or out on the Map page
5. lets you enter a heading Speed lets you enter a speed Transducer lets you simulate using a Depth Only Temp Only or Temp Speed transducer These elds only appear when the unit is in Simulator Mode System Information displays the unit s software basemap version and electronic serial number Press MENU for the following options Defaults restores settings on System page to default values All Unit Defaults restores all settings to Garmin s original setup values for the entire unit Units SubmenuTab de nes settings for Position Format Map Datum Heading Distance Speed Elevation Depth and Temperature The following settings are available Position Format is used to change the coordinate system in which a given position read ing is displayed You should only change the position format if you are using a map or chart that speci es a different position format or wish to use a format you are familiar with The default format is latitude and longitude in degrees minutes and thousandths of a minute hddd mm mmm The following additional formats are available hddd ddddd latitude longitude in decimal degrees only hddd mm ss s latitude longitude in degrees minutes seconds UTM UPS Universal Transverse Mercator Universal Polar Stereographic grids British Grid Dutch Grid Finnish KKJ27 German Grid India Zones Irish
6. To have the unit automatically scan for a frequency 1 With the unit set to Garmin DGPS or RTCM In NMEA Out use the ARROW KEYPAD to high light the Beacon eld and press ENTER 2 Highlight Scan and press ENTER The numbers in the Frequency eld changes as the unit scans from 284 kHz to 325 kHz 200 bit rate then 100 at 6 second intervals To restart the scan 1 Press MENU highlight Restart Scan and press ENTER The Status eld shows one of the following Tuning unit is attempting to tune to the speci ed frequency and bit rate Scanning unit is automatically scanning through the frequencies and bit rates Receiving unit is receiving DGPS signal and ready for operation Check Wiring unit is not making connection with DGPS receiver When the unit is receiving a DGPS signal the SNR Signal to Noise Ratio and Distance elds shows data The SNR range is 0dB to 30dB with 30 being the best The Distance may or may not show data depending upon the signal being broadcast from the DGPS site The DGPS beacon transmitters are operated by the U S Coast Guard or similar government agency in other countries which is responsible for their accuracy and maintenance For DGPS trans mitter problems or to nd the most updated list of frequencies and coverage areas contact your local USCG or see their web site at http www navcen uscg m
7. 78 Main Menu DSC Tab Reference HOW ARE MMSI ASSIGNMENTS OBTAINED Non commercial users e g recreational users who remain in domestic waters and only carry VHF EPIRB Emergency Position Indicating Radio Beacons and Radar are not required to have a FCC ship station license The FCC and Coast Guard have authorized some second and third party vendors to assign MMSI numbers This service is limited to registering recreational vessels only To receive information on how to obtain a recreational MMSI number please contact http www uscg mil rescue21 links mmsi htm or http wireless fcc gov marine U S Non Federal User Commercial users or those who travel outside the U S or Canada must apply for a ship station license or an amendment to a ship station license To nd out if you require a Ship Station license contact http wireless fcc gov marine fctsht14 html If your vessel requires licensing by the FCC you will obtain a MMSI during the application licensing process when you le FCC Forms 159 and 605 U S Federal User Federal users can obtain MMSI assignments from their agency radio spectrum management of ce These procedures are currently under review by the NTIA National Telecommuni cations and Information Administration Outside the U S Users can obtain an MMSI assignment from their telecommunications authority or ship registry often by obtaining or amending their ship station license In Canada Industry Canada is
8. New Item and press ENTER 2 Or with the Directory Tab highlighted press the Arrow Keypad DOWN highlight an empty eld and press ENTER to access the New Directory Item window The New Directory Item window allows you to input information of a known contact To add the MMSI number Name or Comment 1 Press UP DOWN on the Arrow Keypad to highlight the MMSI Name or Comment eld 2 Press ENTER to highlight the rst digit on that eld 3 Press UP DOWN on the Arrow Keypad to enter the numbers letters 4 Press LEFT RIGHT on the Arrow Keypad to move to the next position 5 Press ENTER to accept the entry 6 Press UP DOWN on the Arrow Keypad highlight the Delete button and press ENTER to delete the entry or highlight the OK button and press ENTER to accept the entry After creating a New Directory Item entry the name created is attached to that particular MMSI number If you return to the Log the new name is displayed under the corresponding MMSI number Another way to input a name is from the Entry Review page or the DSC Distress Call or DSC Posi tion Report pages The Name eld is only available in the GPS Names cannot be sent like the MMSI numbers to other DSC users DSC Setup Garmin chartplotters have the ability to turn DSC On or Off This option is bene cial for users who have more than one GPS chartplotter If you want only DSC to display on a particular chartplotter tu
9. Select a waypoint from either the By Name or Nearest list and press ENTER See page 51 for searching for waypoints by name 6 On the Point Review or Waypoint Review page OK is automatically highlighted Choose Show Map and press ENTER to view the point on the map then press QUIT to return to the Waypoint Point Review page With OK highlighted press ENTER to add the point to the route 7 Repeat steps 4 6 until the desired route points have been entered Press QUIT to return to the Route List page Following a Route Once a route has been created it can be activated and used for navigation with the NAV key A route may be followed in the same sequence as it was originally created or inverted and followed from the end point back to the beginning point To activate and follow a route 1 From any page press the NAV key then using the ARROW KEYPAD highlight Follow Route and press ENTER If you highlight a route from the Route List or Route Review page and press NAV the window automatically displays Follow lt the route name gt Choose the type of point you want to add to the route Choose a waypoint from either the By Name or Nearest tab list GPSMAP178CManual indd 58 3 19 2004 3 10 29 PM 59 Reference Route List Page 2 Highlight the route you wish to navigate and press ENTER 3 Choose Activate or Invert and Activate and press ENTER Act
10. s Proposition 65 If you have any questions or would like additional infor mation please refer to our web site at http www garmin com prop65 GPSMAP178CManual indd iii 3 19 2004 3 09 46 PM iv Introduction Warranty and Serial Number Serial Number Use this area to record the serial number 8 digit number located on the back of the unit in case it is lost stolen or needs service Be sure to keep your original sales receipt in a safe place or attach a photocopy inside the manual Serial Number LIMITED WARRANTY This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase Within this period Garmin will at its sole option repair or replace any components that fail in normal use Such repairs or replacement will be made at no charge to the customer for parts or labor provided that the customer shall be responsible for any transportation cost This warranty does not cover failures due to abuse misuse accident or unauthorized alteration or repairs THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE STATU TORY OR OTHERWISE THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS WHICH MAY VARY FROM STATE TO STATE IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL SPECIAL IND
11. GPSMAP178CManual indd 96 3 19 2004 3 10 59 PM 97 Selecting a Transducer Appendix A Transducers The transducer acts as the eyes and ears of your new sonar Proper transducer selection and installation are critical to the operation of your unit The transducer transmits sound waves toward the bottom in a cone shape The larger the cone angle the larger the coverage area at a given depth A wide cone angle transducer works best in shallow water The wide cone angle provides a large coverage area but at a decreased bottom resolution In deeper water this can result in a large dead zone where sh cannot be seen A narrow cone angle transducer is better suited to deep water installations The narrow cone angle provides a smaller viewing area compared to a wide cone angle transducer at the same depth with improved bottom resolution and a smaller dead zone Dual frequency transduc ers give you the best of both wide and narrow cone angles The GPSMAP 178C is packaged with and without a transducer Depending on which transducer you select you will have either single or dual frequency performance Since many mounting locations vary there are a variety of standard and optional transducers and accessories which are available See your local Garmin dealer or contact Garmin to help you in your selection of optional transducers and accessories X X dead zone fish not seen Wide cone angle Narrow cone angle GPSMAP178CManual indd 9
12. Use the ARROW KEYPAD to highlight the symbol of the waypoint s to be deleted and press ENTER 3 Press ENTER to con rm Choose Cancel or press QUIT to stop the deletion To delete all user waypoints 1 Press the MENU key to select the options window 2 Use the ARROW KEYPAD to highlight Delete All and then press ENTER 3 Highlight the OK prompt and press ENTER to con rm Proximity Waypoint List The Proximity submenu of the Points tab lets you de ne an alarm circle around a stored waypoint position and can be used to help you avoid reefs rocks or restricted waters Up to ten waypoints may be listed with a maximum alarm radius of 99 99 nautical or statute miles or kilometers If a proximity alarm circle overlaps with an existing alarm circle the message Proximity Overlaps Another Proximity Waypoint appears Since the unit only alerts for one of the overlap points use caution when navigat ing in these areas If you enter an alarm circle overlap you are only alerted to the closest proximity waypoint GPSMAP178CManual indd 51 3 19 2004 3 10 24 PM 52 Reference Waypoint Lists To add a proximity waypoint 1 Use the ARROW KEYPAD to highlight an empty space on the Proximity list and press ENTER The Find screen appears Highlight Waypoints and press ENTER 2 Use the ARROW KEYPAD to highlight the desired waypoint from the By Name or Nearest tab lists The Waypoint R
13. nation options are enabled when you are actively going to a destination following a Go To or a Route for example You must select a location within 100 nm of a tide station You may move the cursor to see tide heights at dif ferent times Tide data shows in a black box when in cursor mode GPSMAP178CManual indd 73 3 19 2004 3 10 40 PM 74 Reference Trip Tab displays Trip Odometer Moving Average Speed Total Average Speed Maximum Speed Stopped Time Moving Time Total Time and Odometer To reset the trip data 1 Highlight Reset Trip Reset Max Speed Reset Odometer or Reset All and press ENTER Celes Celestial Tab displays celestial data for sun and moon rise set moon phase and approxi mate skyview location of the sun and moon The moon phase displays the current visible portion of the moon as a light color You may display this data for your current position a position from the map or a Find item location Also you may select a different date and time or use the current data To choose another position 1 From the Celestial tab highlight the At eld and press ENTER 2 The Find menu appears Make a selection and press ENTER until the information for that location is displayed on the Celestial tab See pages 65 67 for more information on using the Find feature List highlight any category except Other Location and press ENTER If you wish to reference a Find item
14. or a combination of these options see pg 34 For example you may choose to show dual frequency at a 2X zoom Dual 2X on one half and normal range dual frequency Dual returns on the other half The current display mode is displayed at the bottom of each sonar display Sonar returns show as red strongest then oranges strong yellows medium greens weaker and blues weakest The Fish Symbols option see page 38 allows you to view the actual sonar data a sh symbol or a combination of both Fish Symbols appear as green When the unit is set to Dual frequency see page 35 the appearance of the sh symbols and simulated sh returns changes Fish symbols from the narrower beam 200kHz are solid or narrow returns but the symbols from the wider beam 50kHz are hollow or wide returns Fish icons are displayed in three different sizes Actual sh returns may not always appear as perfect arches due to the speed sh orientation and or other conditions More on understanding the Sonar Page may be found on pages 33 and in Appendix G Dual frequency returns Sonar Page Data Fields Depth Scale Adjustment Menu Simulated Fish Arch Bottom Thermocline Center beam return Outer edge beam returns Frequency mode Flasher GPSMAP178CManual indd 14 3 19 2004 3 10 00 PM 15 Getting Started Sonar Page Using the Adjustment Menu The Adjustment Menu allows direct access t
15. press ENTER again to con rm If you highlight a route name from the Route List and press NAV the name automatically appears Route List Options Menu GPSMAP178CManual indd 59 3 19 2004 3 10 30 PM 60 Reference Route Review Page Route Review Page Once you have created a route the Route Review page allows you to edit a selected route To access the Route Review page 1 Press MENU twice and highlight the Route tab 2 Highlight the name of the route you wish to review and press ENTER The Route Review page also allows you to enter a 15 character name for any listed route By default the name includes the rst and last waypoints in the route To enter a custom route name 1 From the Route Review page highlight the name eld and press ENTER to begin editing 2 Use the ARROW KEYPAD to enter the desired name and press ENTER when nished Once you are on the Route Review page you may review the route points waypoints or map items one at a time from the list To review individual route points 1 Highlight the desired point and press ENTER 2 On the Point Review window you may choose Next highlight the next point on the route list Show Map show the point on a map window or Delete permanently delete the waypoint from the unit and press ENTER If the route point is a user waypoint you may edit any of the waypoint properties on the Waypoint Review page see pages 48 f
16. simply steer toward the center of the highway or keep it on the road The default data elds at the top of the page indicate Speed and Distance To Next point along with To Course which shows the bearing to get you back on course and Time To Next point Use the Highway Page as your primary navigation page in lieu of the Compass Page when your main concern is follow ing a de ned course Whenever the GPSMAP 178C Sounder is in simulator mode you can also adjust your speed and course from the Highway Page using the ARROW KEYPAD As you head toward each waypoint in the tour route try adjusting your boat speed and course to get a feel for how the Highway Page works To adjust the simulated boat speed heading from the Highway Page 1 Press the UP arrow of the ARROW KEYPAD to increase the speed in 10 knot kph mph increments Press the DOWN arrow to decrease the speed in the same increments Press the LEFT and RIGHT arrows of the ARROW KEYPAD to steer the boat adjust the heading NOTE In simulator mode you may also change the simulated speed by pressing UP or DOWN on the ARROW KEYPAD from the Compass page Highway Page Current Destination Data Fields Desired Course Present Position Zoom Scale Steer towards the center of the highway to get back on course GPSMAP178CManual indd 17 3 19 2004 3 10 02 PM 18 Getting Started Highway Page Notice that as you get off course the hi
17. you can access the following menu options by pressing MENU Defaults restores settings back to factory settings for the tab highlighted All Map Defaults restores settings back to factory settings for all tabs Set Up Page Layout the layout of the data elds may be changed to show more elds with a smaller number size or less elds with a larger number size You may also choose to show a Compass Tape on the Map Page only To set up the page layout 1 Press the MENU key to display the Page options 2 Highlight Set Up Page Layout and press ENTER continued Other Tab Track Tab Nav Line Tab GPSMAP178CManual indd 29 3 19 2004 3 10 09 PM 30 Reference Map Page Options 3 The current setting displays press ENTER to change Use the ARROW KEYPAD to highlight the desired setting then press ENTER 4 Press QUIT when nished Change Numbers allows you to specify the type of data displayed in each data eld used on the map display This option is available from any of the main pages See page 19 for instructions on changing data eld numbers The following data options are available for data elds on the main pages BEARING Compass direction from your position to destination COMPASS Compass ribbon COURSE Desired Track DEPTH Depth below transducer DIST TO DESTINATION Distance to nal waypoint DIST TO NE
18. 19 2004 3 11 09 PM 110 Time Offsets Appendix F The chart below gives an approximate UTC Universal Time Coordinate time offset for the various longitudinal zones Check with local charts for more detailed information If you are in daylight savings time add one hour to the offset Longitudinal Zone Offset W180 0 to W172 5 12 W172 5 to W157 5 11 W157 5 to W142 5 10 W142 5 to W127 5 9 W127 5 to W112 5 8 W112 5 to W097 5 7 W097 5 to W082 5 6 W082 5 to W067 5 5 W067 5 to W052 5 4 W052 5 to W037 5 3 W037 5 to W022 5 2 W022 5 to W007 5 1 W007 5 to E007 5 0 E007 5 to E022 5 1 E022 5 to E037 5 2 E037 5 to E052 5 3 E052 5 to E067 5 4 E067 5 to E082 5 5 E082 5 to E097 5 6 E097 5 to E112 5 7 E112 5 to E127 5 8 E127 5 to E142 5 9 E142 5 to E157 5 10 E157 5 to E172 5 11 E172 5 to E180 0 12 A simple way to determine your local time offset is how many hours you are behind or ahead of UTC also called Greenwich or zulu time Example EST Eastern Standard Time is 5 hours behind UTC so your offset would be 5 Adding one hour for day light savings would make EDT Eastern Daylight Time 4 Subtract an hour for each time zone as you travel west Offsets for Continental U S would be EST 5 EDT 4 CST 6 CDT 5 MST
19. 7 MDT 6 PST 8 PDT 7 Longitudinal Zone Offset GPSMAP178CManual indd 110 3 19 2004 3 11 10 PM 111 Appendix G Understanding Sonar Understanding Sonar If you are unfamiliar with basic sonar or need help determining what is displayed on the graph this section may be for you This section is intended to help the novice user gain some understanding of how the GPSMAP 178C operates and how it can help improve their shing productivity To understand what the unit is displaying it is important to have a general knowledge of how the unit works and how it determines what to display Brie y described the unit operates by transmitting sound waves toward the bottom of a lake stream or seabed in a cone shaped pattern When a transmit ted soundwave strikes an underwater object such as the bottom a piece of structure or a sh sound is re ected back to the transducer The transducer collects the re ected sound waves and sends the data to the unit to be processed and displayed on the chart The underwater data is displayed on the chart in the order that it is returned rst returned rst on the chart The diagram in the sidebar demon strates this showing an underwater scene as it would be displayed on the chart Generally speaking if the only thing between the transducer and the bottom is water the rst strong return comes from the bottom directly below the transducer The rst strong return sets the bottom
20. Highlight NMEA In NMEA Out in the Serial Data Format eld and press MENU Select NMEA Setup and press ENTER 2 To change the settings place the highlight over the desired eld and press ENTER Make a selection and press ENTER again to accept the selection Activating NMEA data GPSMAP178CManual indd 89 3 19 2004 3 10 50 PM 90 Reference Main Menu Comm Tab Alarm Tab GPSMAP 178C NMEA Sentence Output NMEA version 3 01 compliant Always transmitted GPRMC GPGGA GPGLL GPBWC GPVTG GPXTE GPRMB SDDBT SDDPT SDMTW SDVHW Switchable sentences GPGSA GPGSV GPWPL GPRTE Garmin proprietary PGRME PGRMZ PGRMM Alarm Tab contains setting for the unit s alarms The Alarm tab is divided into three submenus System alarms Nav alarms and Sonar alarms System Submenu Tab Clock provides an alarm for the system clock Enter a time in the time eld and turn the alarm on and off from the control eld menu Remember to enter alarm times in the same time format UTC or local you re using for your system The unit must be on for the clock alarm to work Battery sets an alarm to sound when the battery is reaching a critical state of discharge DGPS sets an alarm to sound when the unit loses a differential x Accuracy sets an alarm to sound when the GPS position accuracy falls outside the user set value Nav Submenu Tab Anchor Drag sets an alarm to sound when you ve
21. Industrial Estate Olathe Kansas 66062 U S A Romsey SO51 9DL U K Phone 913 397 8200 Phone 44 1794 519944 USA Only 800 800 1020 FAX 44 1794 519222 FAX 913 397 0836 The Garmin GPSMAP 178C has no user serviceable parts and is fastened shut with screws Any attempt to open the case to change or modify the unit in any way voids your warranty and may result in permanent damage to the equipment GPSMAP178CManual indd iv 3 19 2004 3 09 46 PM v Introduction Capabilities Designed for detailed electronic charting capability the Garmin GPSMAP 178C Sounder is a pow erful navigation device that can give you the information you need Precision Performance High contrast 256 color LCD screen with backlighting 12 channel parallel receiver tracks and uses up to 12 satellites for fast accurate positioning WAAS Capable receive signals from the additional set of WAAS Wide Area Augmentation System satellites to give you better accuracy Differential Ready just add an optional Garmin beacon receiver for better than 5 meter accu racy Fully gasketed high impact plastic alloy case waterproof to IEC 529 IPX7 Advanced Navigating and Plotting 3000 alphanumeric waypoints with selectable icons and comments Built in Worldwide marine basemap to 20 miles includes detailed ocean river and lake coast lines cities interstates US state highways and local thoroughfares 50 reversible routes with up
22. Isld 67 Easter Island 1967 European 1950 European 1950 Austria Belgium Denmark Finland France Germany Gibraltar Greece Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland European 1979 European 1979 Austria Finland Netherlands Norway Spain Sweden Switzerland Finland Hayfrd Finland Hayford Finland Gandajika Base Gandajika Base Republic of Maldives GDA Geocentric Datum of Australia Geod Datm 49 Geodetic Datum 49 New Zealand Guam 1963 Guam 1963 Guam Island Gux 1 Astro Guadalcanal Island Hjorsey 1955 Hjorsey 1955 Iceland Hong Kong 63 Hong Kong Hu Tzu Shan Taiwan Indian Bngldsh Indian Bangladesh India Nepal Indian Thailand Indian Thailand Vietnam Indonesia 74 Indonesia 1974 Indonesia Ireland 1965 Ireland 1965 Ireland ISTS 073 Astro ISTS 073 ASTRO 69 Diego Garcia Johnston Island Johnston Island The User datum is based on a WGS 84 Local datum and is an advanced feature for unlisted or custom datums To learn more check your local library or on the world wide web for educational materials on datums and coordinate systems GPSMAP178CManual indd 104 3 19 2004 3 11 07 PM 105 Appendix C Map Datums Kandawala Kandawala Sri Lanka Kerguelen Islnd Kerguelen Island Kertau 1948 West Malaysia Singapore L C 5 Astro Cayman Brac Island Liberia 1964 Liberia 1964 Liberia Luzon Mindanao Luzon Mindanao Isla
23. PM 7 Getting Started Simulator Mode Each page of the GPSMAP 178C Sounder s system also features an options page which gives you access to other functions and features that relate to the speci c page you are viewing To get a feel for how the option pages work let s put the GPSMAP 178C Sounder into simulator mode To activate the simulator mode 1 Press the MENU key twice for the Main Menu Press Up or Down on the ARROW KEYPAD until the GPS tab is highlighted then press the MENU key once 2 Use the UP or DOWN arrow of the ARROW KEYPAD to highlight the Start Simulator option and press ENTER Choose No to the retail demonstration and press the ENTER key 3 Press the ENTER key to con rm the Running Simulator message that appears at the bottom of the display Simulating appears at the top of the Main pages While in Simulator mode a Running Simulator message appears after 2 minutes of inactivity Now you re ready to continue the rest of the simulated tour Keep in mind that the GPSMAP 178C Sounder does not track satellites in simulator mode and this mode should never be used for actual navigation All the waypoint and route planning done in simulator mode is still retained in memory for future use A Running Simulator message appears after 2 minutes of inactivity GPSMAP178CManual indd 7 3 19 2004 3 09 55 PM 8 Getting Started Main Pages Map Page Main Pages
24. Setup The LORAN TD Setup window contains the elds to select the Loran GRI Chain Number Primary and Secondary Stations and TD Offsets To setup Loran TD from the Main Menu 1 Using the ARROW KEYPAD highlight the Setup tab then press RIGHT to highlight the Units submenu tab Highlight the Position Format eld and press ENTER You may also press MENU from the Units tab to display the Loran TD On option If you use Loran TD On skip to step 3 2 Highlight Loran TD press ENTER then highlight Setup and press ENTER 3 To change the settings of any of the ve elds highlight the eld press ENTER select enter the desired setting and press ENTER 4 When done press the QUIT key to return to the Main Menu If the active GRI Chain secondary stations or offsets have been changed since the waypoint was created the waypoint now references the active GRI chain and secondary stations and adjust the TD coordinates accordingly Remember that the GPS is not relying on the LORAN signal for navigation and actually converts the TD coordinate to a useful LAT LON coordinate in the background before storing the waypoint to memory or using it for navigation Because of this the unit can navigate to a TD coordinate anywhere in the world For more information on Loran TDs you may download Garmin s Loran TD Position Format Handbook from the Garmin web site Loran TD Setup Wi
25. To remove a data card 1 Open the card door by pressing together on the two handles at the bottom of the door and lifting it up and open 2 Grasp the card handle and pull out rmly 3 If the unit is on a con rmation tone sounds when the data card has been removed The rst time you insert a data card the unit takes a few seconds to read the card GPSMAP178CManual indd 101 3 19 2004 3 11 04 PM On the Units Tab of the Main Menu press MENU then highlight Loran TD On and press ENTER to select Loran TD Or highlight the Position Format eld highlight Loran TD and press ENTER to select Loran TD 102 Appendix B Loran TD Loran TD System LORAN C is a radio navigation aid operated and maintained in the United States by the United States Coast Guard The name LORAN is an acronym for LOng RAnge Navigation The LORAN system covers the entire United States and the U S Coastal Con uence Zone From the perspective of a mariner the system is used for ocean and coastal navigation It can be used as a supplemental system for harbor and harbor approach navigation and it is used for inland navigation by recreational vehicles LORAN TD Feature The LORAN TD Time Delay feature eases the transition from using LORAN to using GPS The GPSMAP unit automatically converts GPS coordinates to LORAN TDs for those who have a collec tion of LORAN xes for favorite shing spots and other waypoints re
26. adjustment window or press LEFT RIGHT on the ARROW KEYPAD to view another adjustment window To change a setting back to Normal or Auto 1 On the adjustment window for the desired option press MENU 2 Select the desired setting and press ENTER Adjustment Menu Options Range sets the display depth range used for viewing The unit can be set to automatically track the bottom or set to a user speci ed depth range Auto mode displays the most information possible while continuously showing the bottom Zoom used to quickly select a display zoom scale or split the display When a scale other than No Zoom is selected the Adjustment Menu displays a new selection labeled View Split screens display the same frequency 50kHz 200kHz or Dual on both sides The Zoom setting is divided into six display levels 2X Split shows two reduced size sonar pictures at the same time The right half of the display screen shows the complete sonar picture at its original scale The left half shows a portion of the original picture at 1 2 depth scale 2X Zoom displays the 2X zoomed picture on the full screen and does not show the original depth scale 4X Split shows two reduced pictures the right at the original depth scale and the left at 1 4 the original depth scale 4X Zoom displays only the 4X zoomed picture on the full screen Btm Bottom Split shows two reduced pictures the right at the
27. and bearing to a position and perform various route and waypoint functions When the cursor is active an additional data window appears below the data elds to indicate the position range and bearing to the cursor or a selected waypoint or map item The map scale displays at the bottom right of the page The ZOOM IN and ZOOM OUT keys combined with the ARROW KEYPAD let you select zoom ranges and move the cursor Two basic map operating modes position mode and cursor mode determine what cartography is shown on the map display Position mode pans the cartography to keep the present position marker within the display area while cursor mode pans the cartography to keep the cursor within the display area The GPSMAP system always powers up in the position mode with your vessel centered on the map display When suf cient map coverage is not available to keep the boat centered the boat icon moves toward the edge of the display When the ARROW KEYPAD is pressed the GPSMAP 178C enters cursor mode In cursor mode The cursor can be moved over the map display using the ARROW KEYPAD Whenever the cursor reaches the edge of the display the map scrolls forward under the cursor Keep in mind that the boat icon moves with the map scrolling and may go off the display screen you may not be able to see your present position When the cursor is stationary a xed coordinate position appears in the position eld Note
28. box on a page 2 Use the ARROW KEYPAD to move the cursor highlight up and down a list or up down and sideways on menus 3 Once you have moved to the desired selection press the ENTER key to either activate the feature or the MENU key to pop up a sub menu or list of yet more feature options Repeat this process to select an option from the list or press the QUIT key to return to the previous setting The QUIT key moves backwards through these steps or back to the main page you started on To select and activate a function button 1 When moving about a page with function buttons like the New Map Waypoint page you observe functions such as Delete Show Map and OK To activate the function highlight the desired button and press the ENTER key Options Menu with highlighted option Use the ARROW KEYPAD to highlight the next option Press ENTER MARK to activate Pop up list of options for a highlighted eld GPSMAP178CManual indd 2 3 19 2004 3 09 51 PM 3 Getting Started Entering Data Naming a waypoint or placing any sort of data that has not been prede ned requires the use of both the ARROW KEYPAD and the ENTER MARK key To enter a name or number in a data eld 1 Once you have accessed a page with programmable data elds e g Waypoint Edit you can use the ARROW KEYPAD to move the cursor Highlight to elds on the page Use the UP DOWN arrows to move up or down an
29. data options The data window layout may also be changed to display additional data elds and change the actual size of the data displayed The GPSMAP 178C s Highway Page features a menu options page that provides access to functions and features relating to the Highway Page and the layout options To display the Highway Page options 1 Press MENU Current Nav Point Data Fields Route Waypoints Desired Track Line Current Position Zoom Scale Highway Page GPSMAP178CManual indd 42 3 19 2004 3 10 18 PM 43 Reference Highway Page Options To select a menu option 1 Using the ARROW KEYPAD highlight the desired option and press ENTER The following options are available from the Highway Page menu Set Up Highway allows you to select what waypoints and tracks are shown on the Highway display Use the ARROW KEYPAD and ENTER key to select deselect the desired options Four options are available Active Route Waypoints all active route waypoints User Waypoints only nearby waypoints Track Log current active track log Saved Tracks any saved track logs Set Up Page Layout allows you to change the layout of the data elds to show more elds with a smaller number size or less elds with a larger number size See page 29 Change Numbers allows you to specify the type of data displayed in each data eld used on the map display For detailed instru
30. has found the satellite s and is collecting data Dark Green signal strength bars the receiver has collected the necessary data and the satellite s are ready for use As soon as the GPSMAP 178C has collected the necessary data from the best satellites in view to calculate a x the status eld indicates a 2D or 3D status The unit then updates the position date and time You can use the sky view to help determine if any satellites are being blocked and whether you have a current position x indicated by a 2D 2D Differential 3D or 3D Differential in the status eld The sky view shows a bird s eye view of the position of each satellite relative to the receiver s last known position The outer circle represents the horizon north up the inner circle 45 above the horizon and the center point a position directly overhead You can also set the sky view to a Track Up con guration causing the top of the sky view to align along your current track heading Sky View Signal Strength Bars Receiver Status Differential Status Accuracy 45 90 Outer ring the horizon Inner ring 45 above the horizon Center dot 90 above the horizon Main Menu GPS Tab GPSMAP178CManual indd 68 3 19 2004 3 10 36 PM 69 Reference Main Menu GPS Tab WAAS Capability The GPSMAP 178C is capable of receiving WAAS Wide Area Augmentation System satellite sig nals WA
31. how the Map Page can be used to monitor your present location let s take a minute to learn how to mark and store your present position as a waypoint Since you re in simulator mode the present position displayed is the last position calculated by the receiver which should be the spot where you ve initialized the unit This also gives you an opportunity to see how the GPSMAP 178C Sounder s keypad and ENTER MARK key are used for data entry and changing the waypoint name and symbol Current position Map Scale Map Cursor Cursor Coordinates Distance Bearing GPSMAP178CManual indd 9 3 19 2004 3 09 57 PM 10 Getting Started Marking Waypoints To mark your present position 1 Hold down the ENTER MARK key until the New Waypoint window appears then release the key The window shows a default three digit waypoint name number 001 symbol dot and position You can leave the name as the auto assigned number but for this exercise lets change the name to DOCK 2 Use the ARROW KEYPAD to highlight the waypoint name eld 001 and press ENTER MARK You see that just the rst 0 is now highlighted 3 Press LEFT on the ARROW KEYPAD to clear the name eld 4 Press UP or DOWN on of the ARROW KEYPAD until the letter D appears and then press RIGHT to go to the next space to the right then UP or DOWN again until O appears Repeat this until you have entered the name DOCK If
32. item position in order to create a new waypoint You must have a valid position 2D or 3D x to mark your present position This can be determined by looking at the GPS tab on the Main Menu To mark your present position 1 Press and hold the ENTER MARK key until the New Waypoint window appears then release it You see a default three digit name and symbol for the new waypoint 2 To accept the waypoint with the default name and symbol press ENTER to con rm the highlighted OK prompt 3 To enter a different name highlight the name eld and press ENTER then use the ARROW KEYPAD to enter the new letters numbers and press ENTER when done You may use up to 10 alphanumeric characters for the name 4 To enter a different symbol highlight the symbol eld to the left of the name and press ENTER then use the ARROW KEYPAD to highlight the new symbol and press ENTER 5 To enter optional comments depth or water temp highlight the appropriate eld and press ENTER then use the ARROW KEYPAD to enter a value and press ENTER Highlight OK and press ENTER to use the default name and symbol Highlight a eld and press ENTER to enter a new symbol name com ment or depth GPSMAP178CManual indd 44 3 19 2004 3 10 19 PM 45 Reference Creating Waypoints 6 To manually enter a set of coordinates highlight the coordinates and press ENTER then use the ARROW KEYPAD to enter the new coordinates and p
33. level Weaker secondary returns provide the detailed data Stronger returns displays in darker colors black being the strongest return In Example 3 page 113 you can see that the branches and the sh where the strongest second ary returns are indicated in black on the display That is brief description of how your GPSMAP 178C operates Let s take a look at how this data can help you to improve your shing This sh is currently in a dead zone and is not detected by the sonar The sh is in the coverage area of the transducer but remember the rst strong return sets the bottom level The sh is eventually detected when the rst strong return sets the bottom level below the sh GPSMAP178CManual indd 111 3 19 2004 3 11 10 PM 112 Appendix G Transducer Coverage Transducer Coverage The area covered by the transmitted sound waves is determined by the cone angle of the trans ducer and the water depth Cone angles may vary between different types of transducers For example a 50kHz frequency may provide a wide 40 cone angle with a coverage width that is approximately 2 3 of the water depth As shown in the sidebar the 40 cone angle 50kHz frequency approximately covers the area of a 20 foot diameter circle at a 30 foot depth A 200kHz frequency may provide a narrow 10 cone angle with a coverage width that is approximately 2 10 of the water depth As shown the 10 cone angle 200kHz fr
34. manually enter the elevation when in 2D or Simulator mode only Any elevation entered is automatically calculated when the GPS is in 3D mode To select a menu option 1 Using the ARROW KEYPAD highlight the desired option and press ENTER NOTE If a DGPS receiver is attached to the unit and Garmin DGPS RTCM In NMEA Out or Other DGPS is enable on Port 2 WAAS is automatically disabled WAAS Off It is not possible for the GPSMAP 178C to receive WAAS and DGPS corrections at the same time GPS Tab Options Menu GPSMAP178CManual indd 71 3 19 2004 3 10 38 PM 72 Reference Tide Tab shows a graphical chart that displays tide station information in a 24 hour span starting at midnight station time You can choose from different dates and over 3000 tide stations around the USA coastline Alaska Hawaii western Canada and several of the Caribbean islands The top of the page displays the tide station being referenced below that the date The top of the chart shows a 24 hour block of local time LCL for your position with the reported station time STA appearing at the bottom Daylight light yellow bar and nighttime dark blue bar show across the time scale with the time progressing from left to right Local time scales and day night info may not be avail able for a few stations The solid light vertical lines are in 4 hour increments and the light dotted verti cal lines are in 1 hour increments A solid vertical line with th
35. name bearing and distance from your location and coordinates of the cursor The bottom of the display shows you the number of available and used points A route line appears on the map to indicate each completed leg and a dotted line appears to indicate the distance and bearing to the arrow cursor from the last route waypoint 5 Repeat steps 3 and 4 until you have nished de ning all route waypoints 6 When nished press QUIT twice to return to the Route List page or press MENU highlight Edit as Text and press ENTER to return to the Route Review page Main Menu Route Tab and Route Options Menu You see ADD below the cursor as you add points GPSMAP178CManual indd 57 3 19 2004 3 10 28 PM 58 Reference Creating a Route Following a Route To create a route using text from the Route Review page 1 Press the MENU key twice to display the Main Menu page Use the ARROW KEYPAD to highlight the Route tab 2 Press the MENU key to display the route options page Select the New Route option and press ENTER Or highlight the rst available blank route slot and press ENTER 3 Press MENU select Edit as text and press ENTER 4 Use the ARROW KEYPAD to highlight the rst eld under the word Waypoint and press ENTER 5 From the Find menu highlight Waypoints and press ENTER You may also choose from other points such as Cities Tide Stations etc from this list
36. navigating to them using the receiver s steering guidance and map displays We ve already seen how to use the ENTER MARK key to store your present position so it s time to move on to the fun part going to a destination The NAV MOB key located on the keypad above the QUIT key is the primary tool used to select a destination waypoint TracBack or a route to navigate The NAV key can be used in two primary ways Pressing NAV once displays a list of options from which you can select Go To Point Follow Route Follow Track or Stop Navigation Highlighting an on screen waypoint or map item as a destination directly from the Map Page and pressing NAV allows you to graphically select points to Go To For our simulated trip you re going to select a pre programmed tour route using the rst method This also shows how the MENU key is used throughout the GPSMAP 178C Sounder system to provide tab style options and functions Let s start by changing the position to where the practice route is located To change the GPSMAP 178C Sounder position in simulator mode 1 Press the MENU key twice to display the list of Main Menu tab items 2 Use the UP or DOWN arrow of the ARROW KEYPAD to highlight the Setup tab then LEFT or RIGHT to highlight the System submenu tab 3 Highlight Set Position in the simulator setup window and press ENTER 4 From the Initialize Position page press the M
37. original depth scale and the left showing sonar returns from the bottom up All target depths read as a distance from the bottom Btm Bottom Lock displays only the Bottom Lock picture returns from the bottom up on the full screen 4X Split Zoom Display Dual Frequency Mode Range Adjustment Zoom Adjustment GPSMAP178CManual indd 34 3 19 2004 3 10 13 PM 35 Sonar Page Adjustment Menu Reference Once activated the zoomed picture becomes the Sonar Page display You may also cycle through the sonar zoom display levels by pressing the IN or OUT keys The Zoom function can be deactivated by pressing the OUT key until the No Zoom setting appears View Span available when a Zoom scale other than No Zoom is selected The View or Span setting is used to change the viewing range of a zoomed display If the Zoom is set to 2X split or 4X split only the zoomed portion on the left side of the screen is affected by the change If the Zoom is set to Bottom Split or Bottom Lock Span adjusts how far off the bottom the unit displays data In Zoom mode you can control the view of the left side of the split Gain allows you to control the sensitivity of the unit s receiver This provides some exibility in what is seen on the display To see more detail increase the receiver sensitivity by selecting a higher gain percentage If there is too much detail or if the screen is cluttered lowering the sens
38. responsible for assigning MMSI numbers to commercial and recreational vessels Information is available at the following web site http apollo ic gc ca english mmsi html For more information regarding MMSI s visit http www navcen uscg gov marcomms gmdss mmsi htm HOW CAN GARMIN HELP YOU WITH DSC To receive Distress Calls or Position Reports you must have a DSC equipped chartplotter as well as a VHF radio with DSC support During normal non emergency Position Report communication Channel 70 156 525 MHz has been set aside as the VHF DSC digital call channel For a Distress Call a mariner presses the MayDay button on their VHF radio The call transmits on an emergency channel with the GPSMAP178CManual indd 78 3 19 2004 3 10 43 PM 79 Main Menu DSC Tab Reference MMSI number attached to the call if you have DSC support Any DSC equipped mariner on sea or land within range can receive the call When the Garmin GPSMAP 178C is connected to a VHF with DSC support the GPS unit displays a Call List Log and a Directory available to store incoming information received from another user s DSC capable VHF GPS combination Basic wiring is required for the Garmin unit and VHF radio to send and receive NMEA data from each other pg 96 DSC Distress Call With a Garmin DSC capable chartplotter sounder properly connected to a VHF radio with DSC output you may receive any DSC Distress Call within range A window pops up and a messa
39. risk of unsafe operation carefully review and understand all aspects of this Owner s Manual and thoroughly practice operation using the simulator mode prior to actual use When in actual use carefully compare indications from the GPSMAP 178C to all available navigation sources including the information from other NAVAIDs visual sightings charts etc For safety always resolve any discrepancies before continuing navigation CAUTION IT IS THE USER S RESPONSIBILITY TO USE THIS PRODUCT PRUDENTLY THIS PRODUCT IS INTENDED TO BE USED ONLY AS A NAVIGATIONAL AID AND MUST NOT BE USED FOR ANY PURPOSE REQUIRING PRECISE MEASUREMENT OF DIRECTION DISTANCE LOCA TION OR TOPOGRAPHY MAP DATA INFORMATION One of the goals of Garmin is to provide customers with the most complete and accurate cartography that is available to us at a reasonable cost We use a combination of governmental and private data sources which we identify as required in product literature and copy right messages displayed to the consumer Virtually all data sources contain inaccurate or incomplete data to some degree This is particularly true outside the United States where complete and accurate digital data is either not available or prohibitively expensive WARNING This product its packaging and its components contain chemicals known to the State of California to cause cancer birth defects or reproductive harm This Notice is being provided in accordance with California
40. routes numbered 1 50 with up to 50 waypoints each Routes can be created and modi ed in two ways The rst way is to Edit on Map from the Route Edit map page allowing you to see each route graphically on screen as you create review or modify the route The second way is to Edit as Text from the Route Review page allowing you to see a list of the waypoints as you create review or modify the route All of the GPSMAP 178C s route functions are accessed through the Main Menu page or the NAV key To create a route graphically 1 Press the MENU key twice to display the Main Menu page Use the ARROW KEYPAD to highlight the Route tab 2 Press the MENU key to display the route options page Select New Route and press ENTER Or highlight the rst available blank slot in the Route List and press ENTER 3 To add an existing waypoint or map item to the route use the ARROW KEYPAD to highlight the desired waypoint or map item on screen and press ENTER Map items do not appear in the waypoint list To create a waypoint from a map item see page 45 4 To add a new waypoint to the route use the map cursor to select the desired map position and press ENTER Press ENTER again to con rm the new waypoint You may also change the name symbol and other properties of the new waypoint see pages 48 As you add each new waypoint to the route the data window at the top of the map display shows the waypoint map item
41. that the distance and bearing changes as the boat s position changes Data Fields Boat Icon Map Scale Land Water Geographic Name Map Item Navaids User Waypoint Map Page shown using optional MapSource data GPSMAP178CManual indd 22 3 19 2004 3 10 05 PM 23 Reference Map Page Cursor Whenever you zoom in cursor mode the cursor is centered on screen To return to position mode press the QUIT key When the cursor reaches the edge of the map the unit may pause as it loads new map data Using the Cursor The cursor allows you to pan away from your present position and scroll to other map areas around the world even outside of your current detail coverage As you pan past the edge of the cur rent map display the screen actively scrolls forward to provide continuous map coverage You see an hourglass symbol by the pointer while the unit is busy drawing new map detail To move the cursor 1 Press the ARROW KEYPAD to move the cursor in an up down left or right direction As you move the cursor the distance and bearing from your present position to the cursor is displayed in the data window along with the cursor s position coordinates Keep in mind that when the cursor is stationary the distance and bearing from your present position changes as your boat moves The cursor may also be used to snap to on screen waypoints and map items allowing you to review a selected position di
42. to Off The unit supports two input output ports See page 96 for more information on wiring and NMEA information Individual Port settings are Port 1 Garmin Data Transfer the proprietary format used to upload download MapSource data exchange waypoint route track almanac and proximity data with a PC or another Garmin GPSMAP 178C When you select Garmin Data Transfer there are 11 Transfer Modes to choose from Host Request Almanac Request Proximity Request Routes Request Tracks Request Waypoints Send Almanac Send Proximity Send Routes Send Tracks and Send Waypoints NMEA In NMEA Out supports the input output of standard NMEA 0183 data and DSC None provides no interfacing capabilities Main Menu Time Tab Main Menu Comm Tab Data Transfer Progress GPSMAP178CManual indd 86 3 19 2004 3 10 48 PM 87 Reference Main Menu Comm Tab Port 2 Garmin DGPS used to connect the GPSMAP 178C with a Garmin DGPS beacon receiver Other DGPS allows DGPS input using a standard RTCM format without any output capabili ties NMEA In NMEA Out supports the input output of standard NMEA 0183 data and DSC You may also adjust the NMEA output RTCM In NMEA Out allows Differential GPS DGPS input using a standard RTCM format and also provides NMEA 0183 output None provides no interfacing capabilities To select an input output format 1 S
43. waypoints cities etc and press ENTER Use the submenus to narrow down your search for more information see Find on page 65 Highlight the desired location and press ENTER With OK highlighted press ENTER again 4 Highlight the distance and or bearing elds below From Current Position and press ENTER Use the ARROW KEYPAD to enter the projected distance and or bearing from your current position for the new waypoint and press ENTER 5 Make any other desired changes to the new waypoint data name symbol etc then highlight OK and press ENTER to save the waypoint Waypoint Menu Options Two additional options are available by pressing MENU on the New Waypoint and New Map Waypoint Pages Append To Route and Move Waypoint these menu options also appear on the Waypoint Edit and Waypoint Review pages Append to Route Adds the new waypoint to the end of a route Move Waypoint Allows you to move the waypoint to a new location on the map display To append a new waypoint to a route 1 Select Append To Route from the options menu 2 The Select Route screen appears Highlight the desired route or select New Route and press ENTER 3 With OK highlighted press ENTER to save the waypoint To move a waypoint 1 Select Move Waypoint from the options menu 2 The selected waypoint is centered and highlighted on a map display Use the ARROW KEYPAD to move th
44. window for the desired option press MENU 2 Select the desired setting and press ENTER For detailed information on the functions and options of the Sonar Page see page 33 To learn more about how sonar works see Appendix G Zoom adjustment options Press MENU highlight Adjust ments and press ENTER to see a list of all options and their current settings GPSMAP178CManual indd 15 3 19 2004 3 10 01 PM 16 Getting Started Compass Page Compass Page Current Destination Data Fields Compass Ring Pointer Arrow Now that we re navigating to an actual destination let s move on to the GPSMAP 178C Sounder s navigation pages by pressing the PAGE key Compass Page The Compass Page provides graphic steering guidance to a destination waypoint with an emphasis on the bearing to your destination and current direction of travel The middle of the page features a rotating compass ring that shows your course over ground track while you re moving and a bearing pointer that indicates the direction of the destination bearing relative to the course over ground The compass ring and pointer arrow work independently to show at a glance the direction of your movement and the direction to your destination For instance if the arrow points up you are going directly to the waypoint If the arrow points any direction other than up turn toward the arrow until it points up then continue in that direction B
45. 11 03 PM 101 Appendix A Installing and Removing Data Cards Once the data card has been read a summary screen appears Press ENTER to acknowledge Installing and Removing Data Cards The GPSMAP 178C uses optional Garmin marine BlueChart and MapSource data cards to display digital charts and maps on screen You may also transfer user data to data cards pg 82 Data cards are installed in the card slot located at the bottom right of the unit Data cards may be installed or removed at any time whether the unit is on or off To install a data card 1 Open the card door by pressing together on the two handles at the bottom of the door and lifting it up and open 2 Insert the card into the slot with the label facing top and the handle towards you 3 Firmly push the card into the unit It in not necessary to force the card and about 1 2 is still exposed when it is properly inserted If the unit is on a con rmation tone sounds and a message displays on the screen noting the card details when the card has been properly installed and accepted 4 Close the cover If you insert a data card and get a card format not recognized message try removing the card and reinserting it If the card is still not recognized contact the Garmin or your Garmin dealer for assis tance Data cards are not waterproof should not be exposed to moisture or excessive static charges and should be stored in the case supplied with the card
46. 178C on 1 Press and hold the POWER key until the power tone sounds then release the POWER key The Warning Page appears while the unit conducts a self test 2 Once the self test is complete press the ENTER MARK key if you agree to acknowledge the warning The GPS Information Page appears as the receiver begins acquiring satellites From this or any other page you may also adjust the screen backlighting The GPSMAP 178C s adjustable screen backlighting is controlled with the POWER key The back light can cycle through minimum user de ned and maximum backlight levels by repeatedly pressing the POWER key To adjust the backlighting and contrast 1 Press POWER and the Light Contrast window appears 2 Press POWER again and the user de ned level of backlighting activates You may adjust this level by pressing UP or DOWN on the ARROW KEYPAD If you press POWER one more time the back lighting is at the minimum setting Press LEFT brighter or RIGHT darker to adjust the contrast 3 Press ENTER or QUIT when done A full screen GPS Information pop up page is displayed after you press the ENTER key to acknowledge the Warning Page The pop up page goes away after the unit gets a position x or you press either ENTER or QUIT Use the ARROW KEYPAD to move the backlighting slider UP for brighter or DOWN for dimmer backlighting Press LEF or RIGHT to adjust the display contrast GPSMAP178CManual indd 6 3 19 2004 3 09 54
47. 7 3 19 2004 3 11 00 PM 98 Appendix A Proper transducer installation is key to getting the best performance from your new unit If the transducer lead is too short extension cables are available from your Garmin dealer DO NOT cut the transducer lead or any part of the transducer cable as this voids your warranty The cable cannot be spliced and connected to any existing Garmin or non Garmin transducer cables Following are some tips and basic installation instructions for some popular transducers Detailed installation instructions are provided in the transducer kits Some transducers may need to be installed by a professional marine installer Transom Mount Installation Transom Mount Transducer depth temp Do not mount transducer directly in the path of the prop The transducer can cause cavitation that may degrade the boat s performance and damage the prop Make sure that the transducer is below water level when the boat is on plane at high speed Apply marine sealant to all screw threads to prevent water from seeping into the transom Mount the transducer cable cover well above the waterline Transducer should extend 1 8 3mm below fiberglass hull or 3 8 10mm below aluminum hull OK Mount the transducer parallel with the bottom USS Jayhawk Mounting the Transducer DO NOT mount the transducer behind strakes struts ttings water intake or discharge ports or anything that creates air bubbles or ca
48. 83 BlueChart 27 28 Bottom Lock 34 Bottom Split 34 C Calibrate Water Speed 39 40 Capabilities v Card Tab 82 Cautions iii Celes Tab 74 Change Numbers 18 30 40 43 Cleaning 117 Clock Alarm 90 Color Sonar Background 39 Color Bar 39 Color Mode 27 Communications Tab 86 90 Compass Page 16 41 Compass Page options 41 Compass Ring 16 41 Contrast 1 6 Copying Routes 59 Course Line 29 Course Up 27 Creating Map Waypoints 13 Creating Routes 57 58 Creating Waypoints 44 47 50 Cursor 9 13 22 24 Customer Service i D Data Cards 101 Data Card Maps 27 Data Fields 18 30 Data Transfer 86 87 Datum 85 Daylight Savings 86 110 Declutter 31 Deep Water Alarm 91 Defaults 29 40 84 Deleting Routes 59 Deleting Tracks 76 Deleting Waypoints 49 51 Depth Line 15 36 Depth Number 38 Depth Units 85 Detail 27 DGPS 87 88 96 DGPS Alarm 90 Distance Units 85 DSC Digital Selective Calling 77 DSC Call List 80 DSC Directory 80 81 DSC Distress Call 78 79 GPSMAP178CManual indd 118 3 19 2004 3 11 15 PM 119 Appendix I Index DSC Entry Review 80 DSC Log 80 DSC Position Report 78 79 DSC Setup 81 DSC Simulation 82 DSC Tab 77 81 DSC Tabs 82 Dual Frequency 14 E Editing Routes 60 63 Editing Waypoints 48 49 Elevation Units 85 Entering Data 3 ENTER Key 1 Erasing Tracks 75 F FCC Compliance ii Find 65 66 FIND Key 1 65 Find Options 66 Fish Alarm 91 Fish Symbols 38 Flasher 39 Following Routes 58 59 Fol
49. AP 178C When in doubt seek assistance If you are using a map or chart in conjunction with your GPS make sure the settings under the Units tab of the GPSMAP 178C match that of the map or chart This infor mation should be displayed somewhere on the map or chart If the information is not present contact the map or chart maker to determine what position format datum heading and units of measure are being used for the map or chart GPSMAP178CManual indd 85 3 19 2004 3 10 47 PM 86 Reference Main Menu Time Comm Tab Time Submenu Tab displays the current time and date allows you to adjust the 12 or 24 hour time format enter a time zone and adjust for daylight savings to show correct local time The following options are available Time Format choose from 12 or 24 hour military time format Time Zone choose your correct time zone to show correct local time or enter a UTC Offset The UTC also called Greenwich Time offset is how many hours you are ahead or behind the time line See the table on page 110 for time offsets Daylight Savings choose from Auto On or Off to adjust for daylight savings Comm Communications Tab lets you control the input output format used when connecting your GPSMAP 178C to external NMEA devices a DGPS beacon receiver a personal computer another Garmin GPSMAP 178C etc If a DGPS receiver is used WAAS capability is automatically turned
50. AS is an FAA Federal Aviation Administration funded project to improve the overall accuracy and integrity of the GPS signal for aviation use but land sea based users may also bene t from this system At this time the system is still in the development stage and is not fully operational There are currently two WAAS satellites that can be received in the U S A one over the Atlantic Ocean and one over the Paci c Ocean in a geo stationary orbit over the equator Effective use of the WAAS satellite signal may be limited by your geographic location in relation to those satellites now in developmental service WAAS satellite signal reception requires an absolute clear view of the sky and works best when there are no nearby obstructions such as buildings mountains etc WAAS satellites are numbered 33 or higher when viewing the sky view on your GPSMAP 178C Initial reception of the WAAS signal may take up to 15 20 minutes then 1 2 minutes afterwards When WAAS differential correction has been received for GPS satellites numbers 32 or below a D appears in the signal bar of the sky view and 2D or 3D Differential appears in the receiver status To learn more about the WAAS system its satellite positions and current state of development visit the FAA web site http gps faa gov Since WAAS requires CPU resources of the GPSMAP 178C to search for and track the satellites you may disable the WAAS feature to improve unit performance if WAAS
51. Acquisition Times Warm Approx 15 seconds Cold Approx 45 seconds AutoLocate Approx 2 minutes Update Rate 1 second continuous GPS Accuracy Position lt 15 meters 49 feet 95 typical Velocity 0 05 meters sec steady state DGPS USCG Accuracy Position 3 5 meters 10 16 feet with optional Garmin DGPS receiver 95 typical Velocity 0 05 meters sec steady state GPSMAP178CManual indd 116 3 19 2004 3 11 15 PM 117 Appendix H Speci cations Unit Care Cleaning The unit s case is constructed of high quality material and does not require user maintenance other than cleaning Clean the unit housing using a cloth lightly dampened with a mild detergent solution and then wipe dry Avoid chemical cleaners and solvents that may damage plastic components Do not apply cleaner to electrical contacts on the back of the unit Storage Do not store the unit where exposure to tempera ture extremes may occur see left as permanent damage may result User information such as waypoints routes etc is retained in the unit s memory without the need for external power It is always a good practice to back up important user data by manually recording it or download ing it to a PC see pg 86 Water Immersion The GPSMAP 178C is waterproof to IEC Standard 60529 IPX7 It can withstand immersion in 1 meter of water for 30 minutes Prolonged submersion can cause damage to the unit After submersion be cert
52. Data Fields Active Route Page 19 Main Menu Page Deleting Waypoints 20 Powering Off Unit 21 Section Two Reference 22 91 Map Page 22 Cursor 23 Zooming 24 Map Page Options 25 Map Sonar Split Page 32 Sonar Page 33 Adjustment Menu 34 Sonar Page Options 36 Sonar Tab Options 39 Compass Page 41 Highway Page 42 Highway Page Options 43 Waypoints 44 Creating 44 Reviewing 48 Editing 48 Lists 50 Going to a Destination 53 TracBack Navigation 54 MOB Man OverBoard 56 Routes
53. ENTER 4 Highlight the next eld to the right and press ENTER then enter the desired settings and press ENTER to nish 5 If you want the alarm to display and beep until acknowledged highlight the Persist box and press ENTER to place a check mark in the box Main Menu Alarm Tab Nav Submenu Main Menu Alarm Tab Sonar Submenu GPSMAP178CManual indd 91 3 19 2004 3 10 51 PM 92 Appendix A Antenna Installation Installing the GPSMAP 178C The GPSMAP 178C must be properly installed according to the following instructions to get the best possible performance To complete the installation you ll need the appropriate fasteners and a 1 x 14 thread marine antenna mount available at most marine dealers If you have a GPSMAP 178C with an internal antenna skip to the next page When in doubt seek professional assistance Mounting the GPS Antenna The antenna should be mounted in a location that has a clear unobstructed view of the sky in all directions to ensure the best reception Avoid mounting the antenna where it is shaded by the boat s superstructure a radome antenna or mast Keep the antenna away from the path of a radar s beam Sailboat users should avoid mounting the antenna high on the mast to prevent inaccurate speed read ings caused by excessive heeling Most marine VHF and LORAN antennas do not seriously degrade the GPS antenna s reception Never paint the antenna or clean it with harsh solv
54. ENU key You see Enter As Text highlighted then press ENTER 5 On the Enter Position window press ENTER then use the ARROW KEYPAD to enter N34 56 800 W076 24 066 and press ENTER when done then press QUIT to return to the Map Page Text entry for simulator position For future practice you may skip steps 3 and 4 and point to a location from the Initialize Position page GPSMAP178CManual indd 11 3 19 2004 3 09 58 PM 12 Getting Started Simulated Tour To activate the practice route stored in memory for navigation 1 Press NAV The option list page appears If you were selecting a single waypoint to navigate to rather than a route you could highlight the waypoint on the map press NAV and then press ENTER 2 Use the ARROW KEYPAD to highlight the Follow Route option Press ENTER to con rm 3 The Select Route page appears with the GPSMAP TOUR route highlighted 4 Press ENTER then highlight Activate and press ENTER again To zoom in to a closer map scale 1 Repeatedly press the IN key until the 3 nm scale displays You may also hold the IN or OUT keys down to quickly scroll through the map scales The Map Page should now display ve waypoints chained together in a simple route with your boat at the rst route waypoint A data eld at the top of the page now displays the speed distance to the second route waypoint and a compass ribbon which shows you which way to go
55. GPSMAP178CManual indd 3 3 19 2004 3 09 52 PM 4 Getting Started Initializing the Receiver Power On Initializing the Receiver The rst time you power up your GPSMAP 178C Sounder the receiver must be given an oppor tunity to collect satellite data and establish its present position To ensure proper initialization the GPSMAP 178C Sounder is shipped from the factory in AutoLocate mode which allows the receiver to nd itself anywhere in the world To speed up the initialization process we recommend using the graphic initialization process described on the next page which usually provides a position x within a few minutes Before you initialize make sure the GPSMAP 178C Sounder unit and antenna have been correctly installed on your vessel according to the instructions in Appendix A The antenna needs to be in a loca tion with a clear and unobstructed view of the sky to receive satellite signals To turn on the GPSMAP 178C Sounder 1 Press and hold the POWER key until the power tone sounds and the display comes on then release the POWER key An Introduction page appears asking you to read and acknowledge important information regard ing the proper use of the unit To acknowledge the introduction 1 After reading the introduction page press the ENTER MARK key if you agree GPSMAP 178C Sounder Warning Screen GPSMAP178CManual indd 4 3 19 2004 3 09 53 PM 5 Getting Started Initializing the Receiv
56. Grid Loran TD Maidenhead MGRS New Zealand Qatar Grid RT90 Swedish Grid Swiss Grid Taiwan Grid User Grid W Malayan RSO Main Menu System Tab Simulator Mode Main Menu Units Tab GPSMAP178CManual indd 84 3 19 2004 3 10 47 PM 85 Reference Main Menu Units Tab For additional information on Loran TD setup see page 102 Map Datum allows you to manually select the datum reference used to determine a given posi tion The default setting is WGS 84 The unit automatically chooses the best datum depending upon your chosen position format Datums are used to describe geographic positions for surveying mapping and navigation and are not actual maps built in the unit Although over 100 datums are available as listed on page 104 you should only change the datum if you are using a map or chart that speci es a different datum WARNING Selecting the wrong map datum can result in substantial position errors Heading lets you select the reference used in calculating heading information You can select from Auto Mag Var True Grid and User Mag Var Auto Mag Var provides magnetic north heading references which are automatically determined from your current position True provides headings based upon a true north reference Grid provides headings based on a grid north reference and is used in conjunction with the grid positi
57. IRECT OR CONSEQUENTIAL DAMAGES WHETHER RESULTING FROM THE USE MISUSE OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT Some states do not allow the exclusion of incidental or consequential damages so the above limitations may not apply to you Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase price at its sole discretion SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY To obtain warranty service contact your local Garmin authorized dealer Or call Garmin Customer Ser vice at one of the numbers shown below for shipping instructions and an RMA tracking number The unit should be securely packed with the tracking number clearly written on the outside of the package The unit should then be sent freight charges prepaid to any Garmin warranty service station A copy of the original sales receipt is required as the proof of purchase for warranty repairs Products sold through online auctions are not eligible for rebates or other special offers from Garmin Online auction con rmations are not accepted for warranty veri cation To obtain warranty service an original or copy of the sales receipt from the original retailer is required Garmin will not replace missing components from any package purchased through an online auction Garmin International Inc Garmin Europe Ltd 1200 East 151st Street Unit 4 The Quadrangle Abbey Park
58. Ord Srvy GB Old Survey Grt Britn England Isle of Man Scotland Shetland Isl Wales Pico De Las Nv Canary Islands Potsdam Potsdam Germany Ptcairn Ast 67 Pitcairn Astro 67 Pitcairn Prov S Am 56 Prov So Amricn 56 Bolivia Chile Colombia Ecuador Guyana Peru Venezuela Prov S Chln 63 So Chilean 63 S Chile Puerto Rico Puerto Rico amp Virgin Isl Qatar Qatar National Qatar Qornoq Qornoq South Greenland Reunion Reunion Mascarene Island Rome 1940 Rome 1940 Sardinia Isl RT 90 Sweden Santo Dos Santo Dos Espirito Santo Sao Braz Sao Braz Sao Miguel Santa Maria Islands Sapper Hill 43 Sapper Hill 1943 East Falkland Island Schwarzeck Schwarzeck Namibia Sth Amrcn 69 S American 69 Argentina Bolivia Brazil Chile Colombia Ecuador Guyana Paraguay Peru Venezuela Trin Tobago South Asia South Asia Singapore SE Base Southeast Base Porto Santo and Madiera Islands SW Base Southwest Base Faial Graciosa Pico Sao Jorge and Terceira Islands Taiwan Modi ed Taiwan Timbalai 1948 Timbalai 1948 Brunei and E Malaysia Sarawak and Sabah Tokyo Tokyo Japan Korea Okinawa Tristan Ast 68 Tristan Astro 1968 Tristan da Cunha User User de ned custom datum Viti Levu 1916 Viti Levu 1916 Viti Levu Fiji Islands Wake Eniwetok Wake Eniwetok Marshall WGS 72 World Geodetic System 72 WGS 84 World Geodetic System 84 Za
59. RN 2 TURN 3 TURN X END are created to mark the most signi cant features of the track log in order to duplicate your exact path as closely as possible To get the most out of the TracBack feature remember the following tips Always clear the track log at the point that you want to go back to dock etc The Record Mode option on the track log setup page must be set to Fill or Wrap There must be at least two track log points stored in memory to create a TracBack route Default Track name Check this box to display track Total Distance Total number of points You must rst save a track before using the Follow Track option If there are no saved tracks the message There are no saved Tracks to follow appears after you select Follow Track Change color of track line GPSMAP178CManual indd 55 3 19 2004 3 10 27 PM 56 Reference TracBack Navigation MOB Man OverBoard If the track log interval is set to the Time option the route may not follow your exact path keep the interval set to resolution for best performance If the receiver is turned off or satellite coverage is lost during your trip the TracBack draws a straight line between any point where coverage was lost and where it resumed If your track log s changes in distance and direction are too complex 50 waypoints may not mark your path accurately The receiver then assigns
60. TA Fuel to point Leg Distance Leg Fuel Leg Time Sunrise and Sunset at point location and Time To point To use the trip planning feature 1 Highlight the desired route from the Route List and press ENTER to display the Route Review page 2 One of nine available planning gures appears to the right of each route waypoint and its distance Use the LEFT RIGHT keys on the ARROW KEYPAD to select the desired item 3 To enter planning information from the Route Review Page only press MENU and select Trip Planning from the options list Enter the gures for Speed Fuel Flow Departure Time and Departure Date 4 Press QUIT to return to the Route Review Page NOTE Fuel ow rates on your unit are measured in units per hour System setting changes for units of measure statute nautical or metric do not affect the fuel ow measure You should enter fuel ow rates based upon available information for your vehicle operator s manual performance speci cations etc and make note of the desired units of measure gallons liters etc Press LEFT or RIGHT on the ARROW KEYPAD to change the data eld Trip Planning Data Fields GPSMAP178CManual indd 63 3 19 2004 3 10 32 PM 64 Reference Active Route Page Active Route Page Active Route Page Menu Options Active Route Page Whenever you have activated a route in the GPSMAP 178C the Active Route page shows each point waypoint or m
61. The Map Page is one of six main pages used in the GPSMAP 178C Sounder s system The six main pages are the Map Page Map Sonar Split Page Sonar Page Compass Page Highway Page and Active Route Page All pages are linked together in a simple chain which allows you to scroll through the pages in either direction using the PAGE and QUIT keys Map Page The GPSMAP 178C Sounder s Map Page combines digital chartplotting with a user selectable dis play of navigation data and a built in worldwide database It is also the page you use most to create and edit waypoints and routes Before we take off on our practice route let s take a brief look at its various features and displays The map display shows your boat as a triangle marker on an electronically generated chart Geographic names roads markers and buoys that are provided by the optional BlueChart or MapSource data are also shown It also displays your track routes and nearby waypoints An on screen cursor lets you pan to other map areas determine the range and bearing to a position and perform various waypoint and route functions The data window located at the top of the page provides a user selectable display of various navi gation data including speed over ground distance to the next navigation point compass ribbon and current position coordinates The current map scale setting is located at the bottom right of the page PAGE QUIT Active Route Page Highway Page Map Pa
62. To get started let s enter a speed for our vessel which we can do from the Main Menu Page To enter a boat speed 1 Press the MENU key twice to display the Main Menu Page 2 Use the ARROW KEYPAD to highlight the Setup tab then press RIGHT then DOWN until the eld below the word Speed is highlighted on the System submenu tab and press ENTER 3 Use the ARROW KEYPAD to enter a speed of 40 knots 4 Press ENTER to nish and PAGE until you return to the Map Page Once a speed has been entered you ll notice that the map automatically begins to move slowly keeping your boat centered on the display The direction of movement also called track is controlled by the simulator The Set Position Track Control Track and Speed elds only show while in simulator mode You can also Invert a route to follow it in reverse GPSMAP178CManual indd 12 3 19 2004 3 09 59 PM 13 Getting Started Reviewing Creating Map Waypoints You ll now have a clearer picture of the route you are navigating Keep in mind that when you exceed the usable range of the built in database or the optional MapSource or BlueChart data in use the range eld displays overzoom to indicate that you should exercise extreme caution using the map data Press the ZOOM IN key to zoom into the 2 nm scale Now that you ve zoomed in a little closer to your route you can pan ahead of your vessel with the cursor to review ma
63. WC GPRMC GPGGA GPGSA GPGSV GPGLL GPBOD GPRMB GPRTE GPVTG GPWPL and GPXTE Sonar SBDDBT SDDPT SDMTW and SDVHW Proprietary sen tences PGRME PGRMZ and PSLIB red 10 35 VDC black Ground Power Data blue Port 1 Data OUT brown Port 1 Data IN white Port 2 Data IN green Port 2 Data OUT yellow Alarm Low To Transducer To Unit Beacon Receiver or DSC VHF Autopilot NMEA Device DC Power Source RXD RXD RX TX Alarm Relay 100ma max coil current Note During a typical installation only the Red and Black wires are used The other wires do not have to be con nected for normal operation of the unit Replacement fuse AGC 3AG 2 0 Amp Cable View Pin 16 Brown RX COM 1 Pin 17 Blue TX COM 1 Pin 13 White RX COM 2 Pin 14 Green TX COM 2 Pin 11 Yellow Alarm Pin 15 Red DC Positive Pin 18 Black Ground Complete information concerning NMEA amp RTCM formats and sentences is available for purchase from NMEA at NMEA Seven Riggs Avenue Severna Park MD 21146 U S A 410 975 9425 410 975 9450 FAX www nmea org Radio Technical Commission For Maritime Services RTCM 1800 Diagonal Road Suite 600 Alexandria VA 22314 2480 U S A 703 684 4481 Info Only 703 836 4229 FAX www rtcm org You can download a copy of Garmin s proprietary communication protocol from the Help and Support section of our web site at www garmin com
64. XT Distance to next waypoint ELEVATION Elevation above below MSL Mean Sea Level ETA AT DESTINATION Estimated Time of Arrival to nal waypoint ETA AT NEXT Estimated Time of Arrival to next waypoint GPS ACCURACY Shows estimated GPS accuracy HIGHWAY Smaller version of the Highway Page MAXIMUM SPEED Fastest speed the unit has traveled MOVE AVERAGE SPEED Average moving speed MOVE TRIP TIME Time unit has been moving for a trip OFF COURSE Distance from desired track POINTER Arrow points to your destination POSITION Current position coordinates SONAR Compressed view of sonar data Highlight the eld you wish to change Changing Page Layout GPSMAP178CManual indd 30 3 19 2004 3 10 10 PM 31 Reference Map Page Options SPEED Speed over ground TIME OF DAY Current time TIME TO DESTINATION Time to nal waypoint TIME TO NEXT Time to next waypoint TO COURSE Bearing to desired track TOTAL AVERAGE SPEED Total average speed TOTAL TRIP TIME Total travel time of trip stopped and moving TRACK Current compass direction of travel TRIP ODOMETER Trip Odometer TURN Directional amount of turn needed to match bearing VELOCITY MADE GOOD Velocity Made Good to destination VOLTAGE Current voltage reading being recei
65. ab contains setup options for the Sonar Page See page 39 Setup Tab consists of three submenu tabs System Units and Time System Submenu Tab controls system settings for beeper speed lter languages system mode simulator controls restores factory settings and displays software version The following settings and options are available Beeper controls audible beep Select from Off Alarms Only sounds for alarms messages or Key and Alarm sounds for key presses and alarms messages Speed Filter averages speed readings Choose from Off Auto automatically controls lter ing or On allows you to enter a value from 1 to 255 seconds Language select from various languages for the unit s on screen display System Mode select from Normal Normal Navigation or Simulator For practice ONLY Sounder Only or GPS Only Set Position allows to set your location while in simulator mode See page 11 starting with step 2 for additional instructions Main Menu Temp Tab Setup Tab Main Menu Temp Tab Temperature Scale Time Duration Main Menu System Tab Normal Mode GPSMAP178CManual indd 83 3 19 2004 3 10 46 PM 84 Reference Main Menu System Tab Units Tab Track Control Auto Track steers to the current navigation point User Track allows you to enter a heading in the Track eld Track
66. acause the compass rings uses GPS technology you must be moving in order for the track to display properly The current speed distance to the next waypoint turn angle and time to the next waypoint display at the top of the screen When you are not navigating to a waypoint the compass shows your direction of travel as you move but the arrow does not appear The Compass Page allows for precision navigation to one degree of steerage The default page displays one row of medium numbers elds You may customize the Compass Page to display the size and number of elds along with the type data you wish to see See pages 30 31 for changing the types of data Let s move on to the Highway Page by pressing the PAGE key GPSMAP178CManual indd 16 3 19 2004 3 10 02 PM 17 Getting Started Highway Page Highway Page The GPSMAP 178C Sounder s Highway Page also provides graphic steering guidance to a destina tion waypoint placing greater emphasis on the straight line desired course and the distance and direc tion you are off course As you head toward your destination the middle of the screen provides visual guidance to your waypoint on a moving graphic highway Your present position is at the bottom center of the highway display The line down the middle of the highway represents your desired course As you navigate toward a waypoint the highway actually moves indicating the direction you re off course To stay on course
67. ain to remove the data card and dry the compartments before reuse To resolve problems that cannot be remedied using this guide contact Garmin Customer Support in the U S A at 800 800 1020 or Garmin Europe at 44 1794 519944 UNIT CARE DGPS WAAS Accuracy Position lt 3 meters 10 feet 95 typical Velocity 0 05 meters sec steady state Dynamics 6g s Subject to accuracy degradation to 100m 2DRMS under the U S DOD imposed Selective Availability Program Power Source 10 35 vDC Usage 8 watts max at 13 8 vDC Fuse AGC 3AG 2 0 Amp Sonar Sounder Power 500 watts RMS 4000 watts peak to peak with dual frequency transducer 400 watts RMS 3200 watts peak to peak with single frequency transducer Frequency 50 200 kHz dual frequency 200 kHz single frequency Depth 1500 foot max depth dual frequency 900 foot max depth single frequency Depth capacity is dependent on water salinity bottom type and other water conditions GPSMAP178CManual indd 117 3 19 2004 3 11 15 PM 118 Index Appendix I A Accuracy 69 Accuracy Alarm 90 Accuracy Circle 29 Active Route Page 19 43 64 Adjustments Sonar 36 Adjustment Menu 15 33 34 36 Alarm Tab 90 91 Anchor Drag Alarm 90 Append to Route 47 Arrival Alarm 90 ARROW KEYPAD 1 AutoLocate 71 AutoZoom 27 B Background Color 39 Backlight 6 BACKLIGHT Key 1 Basemap 27 Battery Alarm 90 Bearing Line 29 Bearing Pointer 41 Beeper
68. ap item of the active route with the point name distance and choice of Course ETA Fuel to point Leg Distance Leg Fuel Leg Time Sunrise and Sunset at point location or Time To point for each point from your present position The current destination point the active point is marked with an arrow icon As you navigate a route the point list automatically updates to indicate the next active point rst The Active Route and Route Review pages share many of the same features and options Active Route Page Options The following options are available by pressing MENU on the Active Route page Edit on Map see page 61 for instructions Add Before see page 62 for instructions Remove see page 62 for instructions Invert reverses the direction of the route To invert an active route 1 From the Active Route page press MENU 2 Using the ARROW KEYPAD highlight Invert and press ENTER to reverse the route Re evaluate recalculates and reactivates the current route data Selects the route leg clos est to your current position as the active leg the active leg de nes the current from and to waypoints To re evaluate an active route 1 From the Active Route page press MENU 2 Using the ARROW KEYPAD highlight Re evaluate and press ENTER to recalculate GPSMAP178CManual indd 64 3 19 2004 3 10 33 PM 65 Reference Find Key Find Key T
69. at 66 Nearest To Destination 66 Nearest To Next 66 Nearest To Other 66 New Waypoint 46 NMEA 86 90 96 NMEA Interface 89 NMEA Output Setup 89 Noise Reject 15 36 North Reference 85 North Up 27 Numbers 30 40 O Off Course Alarm 90 Orientation 27 Other Tab 29 OUT Key 1 22 24 Overzoom 24 P Packing List vi PAGE Key 1 Page Layout 19 29 40 43 Pointer 37 Points Tab 28 Position Format 84 Power 4 6 POWER Key 1 21 Projecting Waypoints 46 Proximity Alarms 52 Proximity Waypoints 51 52 Q QUIT Key 1 R Range 15 34 Receiver Status 69 70 Registration i Replace From Card 82 Reset All 74 GPSMAP178CManual indd 120 3 19 2004 3 11 17 PM 121 Appendix I Index Reset Max Speed 74 Reset Odometer 74 Reset Trip 74 Retail Demonstration 7 Reviewing Routes 60 Reviewing Tracks 76 Reviewing Waypoints 48 Routes 57 Routes Copying 59 Routes Creating 57 58 Routes Deleting 59 Routes Editing 60 63 Routes Following 58 59 Routes Reviewing 58 60 Routes TracBack 54 Routes Trip Planning 63 Route List Page 59 Route Review Options 60 Route Review Page 60 S Saved Tracks 76 Savings Tracks 75 Scale Highway 42 Scale Map 24 39 Scroll Sonar 15 36 Selecting Options 2 Serial Number iv Serial Number Electronic 84 Service iv Setup Tab 83 Set 2D Elevation 71 Set Up Highway 43 Set Up Map 26 Set Up Page Layout 19 29 40 43 Set Up Sonar 38 Shallow Water Alarm 91 Show Data 25 Show Numbers 37 Sho
70. atically stored in the Log with the latest call at the top The unit may store up to 100 logs Once 100 logs are received the oldest log le is removed when a new call is received The Log displays information of call Type Date Time Position and MMSI Name Pressing MENU from this page allows you to Sort By Time Sort By Name Sort By Call Type Delete only after highlighting a particular call and Delete All To Review a Call 1 From the DSC tab of the Main Menu and the Log or Call List tab highlighted press DOWN Arrow Keypad until the call you want to review is highlighted 2 Press ENTER to select the call DSC Entry Review The DSC Entry Review operates similarly to the Distress Page and Position Report Page This page has the additional option to Delete the displayed call From the DSC Entry Review you can Delete the entry Show on map or Create Waypoint and create a name for the entry DSC Directory The DSC Directory acts much like a phone book A user can save up to 50 contacts The directory lists by Name and MMSI number Pressing MENU from this page allows you to create a New Item Delete Item or Delete All DSC Entry Review DSC Log GPSMAP178CManual indd 80 3 19 2004 3 10 44 PM 81 Main Menu DSC Tab Reference There are two ways to add a new entry into the directory To add a new Directory entry 1 Press Menu then highlight
71. corded as TDs You can display your position as a TD or enter waypoints as TDs The accuracy to be expected from this conversion is approximately thirty meters When the unit is placed in the LORAN TD format mode it simulates the operation of a LORAN receiver Position coordinates may be displayed as TDs and all navigation func tions may be used as if the unit was actually receiving LORAN signals Using the LORAN TD Format When creating new waypoints using LORAN TD coordinates you must set the correct LORAN chain number and secondary stations in the Setup TD eld before storing the waypoint You must have the correct chain number as well as the secondary station identi ers to use this option correctly These values vary per coordinate set or geographical location Failure to enter correct information could result in inaccuracies for the desired destination After the waypoint is stored in unit memory it always refer ences the LORAN chain number and secondary stations currently selected in the Setup TD eld If you enter a different LORAN chain number change the secondary stations or offsets in the Setup TD eld the active waypoint information re ects those changes Since the GPSMAP unit does not rely on the LORAN signal for navigation it can reference a different GRI chain and or secondary stations and still navigate to the location stored in memory GPSMAP178CManual indd 102 3 19 2004 3 11 06 PM 103 Appendix B Loran TD
72. ctions on changing the data elds and layout of the Highway page see pages 30 31 Active Route Page When a route is activated in the GPSMAP 178C Sounder system the Active Route page shows each waypoint of the active route along with various user selectable types of data For additional details on the Active Route Page see page 64 Selecting the Setup Highway option takes you to the Hiway tab of the Main Menu Preview Window Active Route Page Check or uncheck the options you wish to show hide on the Highway Page GPSMAP178CManual indd 43 3 19 2004 3 10 18 PM 44 Reference Creating Waypoints Creating and Using Waypoints The Garmin GPSMAP 178C stores up to 3000 alphanumeric waypoints with a user de ned icon comments depth or water temperature available for each waypoint Waypoints can be created using three basic methods ENTER MARK key used primarily for marking your present position the ENTER MARK key also provides options that allow you to select a map position or map item from the map display Graphically allows you to de ne a new waypoint position from the map display using the ARROW KEYPAD For creating underwater waypoints see page 37 Text Entry allows you to enter a new waypoint s coordinates manually from a chart etc Marking Your Present Position The Garmin GPSMAP 178C s ENTER MARK key lets you quickly capture your present position or cursor or map
73. d the LEFT RIGHT arrows to move sideways 2 Pressing the ENTER key with the eld highlighted begins the process for entering data in the form of alphanumeric characters 3 Use the ARROW KEYPAD UP DOWN arrows to cycle through numbers 0 to 9 plus minus symbols blank space and the alphabet Pressing and releasing the keypad moves you character by character through the list Pressing and holding the keypad moves you rapidly through the list 4 Use the ARROW KEYPAD LEFT RIGHT arrows to move to the next character on the line or back wards to edit characters If there are more than two lines of data keep pressing to the RIGHT to drop down to the next line 5 When data entry is completed press ENTER to accept data then move to the next programmable eld Not all data elds are programmable such as the date and time When moving about a page with these elds the cursor skips over them Every eld and button on this page can be programmed or activated A waypoint symbol can be selected from a list of symbols A comment can be added The coordinates can be changed The waypoint can be renamed A depth can be entered A water temperature can be entered Option buttons can be activated Pressing UP or DOWN on the ARROW KEYPAD changes numbers and letters Pressing LEFT or RIGHT on the ARROW KEYPAD moves the cursor along the line or to the next line Data Entry Field Non programable data elds
74. e Show Notes To scroll through the notes you may either highlight the notes press ENTER and use the ARROW KEYPAD to scroll UP DOWN LEFT and RIGHT or press MENU and choose the desired scroll option Waypoints Tab Waypoints Active Route Text None Small Medium and Large controls the screen size of the name Zoom Auto Off 20 ft 800 mi sets the maximum scale at which the feature should appear on the screen Some types of data only shows up to certain zoom scales Points Tab Spot Soundings Tide Stations Services Text None except Spot Snd Small Medium and Large controls the screen size of the name Zoom Auto Off 20 ft 800 mi sets the maximum scale at which the feature should appear on the screen Some types of data only shows up to certain zoom scales Navaids Tab Symbol Set Auto GARMIN NOAA International controls the desired navaid symbol set Auto BlueChart maps are drawn using symbols similar to the NOAA NIMA standard Non BlueChart maps are drawn using traditional Garmin symbols GARMIN All maps are drawn using traditional Garmin symbols NOAA All maps are drawn using a symbol set similar to NOAA NIMA International All maps are drawn using a symbol set similar to the IALA symbol set Symbol Text Size Small Medium and Large controls the screen size of the symbol name Light Sectors Off Auto On controls the drawing light sectors on the map Color units indicat
75. e Press UP or DOWN on the ARROW KEYPAD to control the position of the line on the graph The depth is displayed in a window on the right side of the line To turn the Depth Line Off press the ARROW KEYPAD UP until the setting bar is all the way at the top of the range and reads Off Noise Reject helps lter unwanted noise from the graph The Noise Reject tool can be turned Off set to Normal automatically adjusts for optimum viewing or to a xed 1 100 setting When setting the Noise Reject tool the HIGHER the noise rejection setting the unit is more likely to NOT show sh or structure To turn the Noise Reject Off press the ARROW KEYPAD DOWN until the setting bar is all the way at the bottom of the range and reads Off Scroll adjusts the rate that the graph scrolls from right to left If you are sitting still or the graph is moving too fast slowing the scroll rate or pausing it can be bene cial Sonar Page Options The GPSMAP 178C Sounder s Sonar Page features a menu page that provides access to additional functions and to layout and data eld options To display the Sonar Page options 1 Press MENU To select a menu option 1 Use the ARROW KEYPAD to highlight the desired option and press ENTER The following options are available Adjustments lists the Adjustment Menu options and their current settings see page 15 To change an Adjustment setting 1 On the Adj
76. e disassemble modify reverse assemble reverse engineer or reduce to human readable form the Software or any part thereof or create any derivative works based on the Software You agree not to export or re export the Software to any country in violation of the export control laws of the United States of America GPSMAP178CManual indd i 3 19 2004 3 09 37 PM ii Introduction FCC Compliance FCC Compliance The GPSMAP 178C Sounder complies with Part 15 of the FCC interference limits for Class B digital devices FOR HOME OR OFFICE USE These limits are designed to provide more reasonable protection against harmful interference in a residential installation and are more stringent than outdoor require ments Operation of this device is subject to the following conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one of the fol
77. e the actual color of each sector using the color of the light Off No light sectors are ever drawn Auto Light sectors appear when you point to them with the map cursor On Light sectors are drawn for all lights that have them Waypoints Tab Points Tab Navaids Tab GPSMAP178CManual indd 28 3 19 2004 3 10 09 PM 29 Reference Map Page Options Nav Line Tab Heading Line On Off draws an extension from the end of the boat icon in the direction of travel Bearing Line On Off toggles the black white line which points to the current navigation point Course Line Auto Off 20 ft 800 mi sets the maximum zoom scale at which the desired course line should appear on the screen Track Tab Saved Tracks Track Log Zoom Auto Off 20 ft 800 mi sets the maximum scale at which the feature should appear on the screen Some types of data only display up to certain zoom scales Other Tab Accuracy Circle On Off toggles the circle On and Off The circle represents the approximate accuracy of the unit based on EPE DOP and basemap quality Your position is within the circle Lat Lon Grid Text None Small Medium and Large controls the screen size of the name Zoom Auto Off 20 ft 800 mi sets the maximum scale at which the feature should appear Map Outlines On Off toggles the coverage boxes for BlueChart MapSource data On and Off From the map setup page
78. e current time box at the top indicates the time of day when using current date and intersects the tide graph to show their relation The tide curve shows as a shaded area with higher tides being taller and lower tides shorter The solid horizontal line with the current tide box on the left indicates the current tide height The gure to the left of the line shows the current tide level in feet The Mean Lower Low Water MLLW appears as a solid horizontal line on the chart This line only appears if the tide ranges to the zero value or below The numbers directly below above LCL and STA indicate the maximum minimum levels respectively The four data elds below the chart indicate event times and levels at which the tide changes When comparing with other tide tables be sure the the depth unit value is the same for both sources Main Menu Tide Tab Station Name Date Tide Chart Event Times You can select from a list of nearest stations Local Time Station Time Day Night Current Time Bar Max Level Min Level Current Tide Height Bar High Tide Curve Low Tide Curve GPSMAP178CManual indd 72 3 19 2004 3 10 39 PM 73 Reference Main Menu Tide Tab To select the nearest tide station from you current location 1 From the Tide tab highlight the At eld and press ENTER 2 Highlight the desired station of the list and press ENTER twice If you are not within thi
79. e space for the most recent data Transducer Disconnected Sonar Turned Off No transducer attached or bad cable transducer Transfer Complete The unit has nished uploading downloading infor mation to the connected device Water Speed Sensor is Not Working Speed sensor is not detected Check connections Waypoint Already Exists lt waypoint name gt You have entered a waypoint name that already exists in memory Modify the waypoint name or delete the previous waypoint name Waypoint Memory Is Full Can t Create Waypoint You have used all 3000 waypoints available Delete unwanted waypoints to make space for new entries GPSMAP178CManual indd 107 3 19 2004 3 11 08 PM 108 Appendix E Navigation Terms Avg Speed The average of all second by second speed readings since last reset Bearing BRG The compass direction from your present position to a destination waypoint Course The desired course between the active from and to waypoints Distance Dist The great circle distance from present position to a destination waypoint Distance to Destination The great circle distance from present position to a Go To destination or the nal waypoint in a route Distance to Next The great circle distance from present position to a Go To destination or the next waypoint in a route Elevation Height above mean sea level MSL ETA Estimate Time of Arrival The estima
80. e used to select one of three items from the map display an existing waypoint an on screen map item roads rivers cities navaids etc or a new map point non map item If you select a map item as the Go To destination the GPSMAP 178C automatically uses the name of the map item but the point is not stored in the waypoint list see page 45 for creating waypoints using map items If you select a new map point non map item as the Go To destination the GPSMAP 178C automatically creates or moves a waypoint named MAP at the cursor position Choose a waypoint from either the User or Nearest tab list The waypoint or map item name automatically appears when high lighted and NAV is pressed GPSMAP178CManual indd 53 3 19 2004 3 10 25 PM 54 Reference Going to a Destination TracBack Navigation Go To MAP Point allows you to navigate to a spot on the map that is not a waypoint or map item Highlight Save and press ENTER to save an active track log To activate an existing waypoint or map item as a Go To from the map display 1 Use the ARROW KEYPAD to highlight the waypoint or map item on the screen and press NAV 2 With Go To lt waypoint name gt press ENTER To activate a new map point non map item as a Go To from the map display 1 Use the ARROW KEYPAD to move the arrow cursor to the desired position and press NAV 2 With Go To MAP Point highli
81. e value eld is the maximum error allowed from the true course before recording a track point Value de nes the distance or time used to record the track log Save allows you to save the current active track log Erase allows you to clear the active track log currently stored in memory Main Menu Track Tab Main Menu Saved Track Tab GPSMAP178CManual indd 75 3 19 2004 3 10 41 PM Reviewing a saved track 76 Reference Main Menu Track Tab Saved Submenu Tab manages a list of any saved track logs allows TracBack activation map display of saved logs The active log stores up to approximately 10 000 track log points based upon the criteria speci ed in the Track settings Up to 15 track logs may be saved in memory with up to 700 track log points in each saved log On the Saved tab the following options are available by highlighting a track and pressing MENU Review On Map displays the saved track log on a Track Map page Delete Track deletes highlighted saved track log from memory Delete All deletes all saved track logs from memory To review and edit a track 1 On the Saved Track tab of the Main Menu highlight the desired track and press ENTER The Saved Track window appears 2 You may rename the track choose to show the track on the Map and Highway pages delete the track or view the track on a map window 3 To exit press QUIT or highlig
82. e waypoint to the new position and press ENTER Press QUIT to exit Waypoint Options Menu Use the ARROW KEYPAD to move the waypoint to a new position on the map GPSMAP178CManual indd 47 3 19 2004 3 10 21 PM 48 Reference Reviewing Editing Waypoints Waypoint Review Page Highlight OK and press ENTER to exit save changes Changing a Waypoint symbol Reviewing and Editing Waypoints Once you have created and stored a waypoint it may be modi ed reviewed renamed moved or deleted at any time through the Waypoint Review and Waypoint Edit pages To access the Waypoint Review page 1 Use the ARROW KEYPAD to highlight the desired waypoint on the Map Page 2 Press ENTER to display the Waypoint Review page If the waypoint is located on a map feature or on a MapSource or BlueChart feature the Waypoint Review page includes additional information tabs about the other features at that location To access the Waypoint Edit page 1 Press MENU twice to view the Main Menu Use the ARROW KEYPAD to highlight the Points tab then highlight the desired waypoint from the User or Proximity lists 2 Press ENTER to display the Waypoint Edit page If the waypoint is located on a map feature or on a MapSource or BlueChart feature the Waypoint Edit page does NOT display the details of the other map features From the Waypoint Review and Edit pages you may change the name symbol comment position coord
83. ed with the returns on the sonar display Background Color sets the background color on the Sonar Page to Black Blue or White Keel Offset used to offset the surface reading for the depth of a keel This makes it possible to measure depth from the bottom of your keel instead of from the transducer s location Enter a posi tive number to offset for a keel or enter a negative number to compensate for a large vessel that may draw several feet of water The Keel Offset is re ected in the depth reading Map Split Sonar Detail controls Map Sonar Page sonar split range scale Full Range shows right side scale of 2X or 4X split Sonar Page Maximum Detail displays what is shown on the left side of a split sonar screen Calibrate Water Speed this is only available if you are using a speed capable transducer sensor Calibration is required to ensure that the Water Speed displayed on your unit is accurate The unit automatically uses the GPS ground speed if it is available for comparison on the calibration If a GPS ground speed is not available use either your boat s speedometer reading not always accu rate or a stopwatch to determine your speed over a certain distance distance time speed It is recommended that the calibration take place in water having little or no current Main Menu Sonar Tab Depth Scale Overlay Color Bar Flasher GPSMAP178CManual indd 39 3 19 2004 3 10 16 PM 40 Re
84. ehind any obstruction on the hull that would create turbulence at speed NOTE Many modern hulls have a prelocated pocket for shoot thru hull transducer installation If you are unsure if your hull is equipped with a pre located pocket contact your hull manufacturer Testing the location 1 Place the transducer in the water pointed directly at the bottom and set unit for optimum perfor mance Place the transducer in the test device as show on the side bar If the sonar performance is signi cantly degraded another location needs to be tested Installing the transducer 1 Lightly sand the surface of the hull and face of the transducer with 400 grit wet or dry sandpaper 2 Build a dam using strip caulk about 1 4 tall Pour about 1 8 of two part slow cure epoxy in the dam Place the transducer in the epoxy turning the transducer to work out any air bubbles 3 Weight the transducer in place and allow to cure for 24 hours Testing the Location Strip Caulk or RTV Sealer Hull Surface PVC Pipe or a Can Weight transducer to hold it in place Fill Pipe or Can with water or a light mineral oil GPSMAP178CManual indd 99 3 19 2004 3 11 03 PM 100 Appendix A Testing the Installation Testing the Installation While it is possible to perform some checks with the boat trailered the boat should be in the water to properly test the sonar portion of the installation Press the POWER button and the GPSMAP 178C should p
85. elect the desired Port tab then highlight the Serial Data Format eld and press ENTER 2 Use the ARROW KEYPAD elect the desired setting and press ENTER To select a transfer mode 1 Use the ARROW KEYPAD to select Garmin Data Transfer in the Serial Data Format eld 2 Highlight the Transfer Mode eld and press ENTER 3 Use the ARROW KEYPAD to select the desired setting and press ENTER You may also adjust the NMEA output to enable disable certain sentences and adjust the number of Lat Lon output precision digits You must have one of the ports set to NMEA In NMEA Out to use this option Settings affects both Port 1 and Port 2 NMEA outputs To restore the Serial Data Format settings to the default Garmin Data Transfer 1 From the Comm tab press MENU highlight Defaults and press ENTER When transferring data between two Garmin units be sure to always set one to Host and use the other unit to either Send or Request the desired data GPSMAP178CManual indd 87 3 19 2004 3 10 49 PM 88 Reference Main Menu Comm Tab If Garmin DGPS or RTCM In NMEA Out format is selected additional elds are provided to control a Garmin differential beacon receiver directly from your GPSMAP 178C You may have the unit automatically scan for the DGPS beacon signal or you can enter the beacon frequency and bit rate on the unit and the information is used to tune the beacon receiver
86. ents The Garmin antenna screws directly onto any standard 1 x 14 thread antenna mount If you need to raise the antenna to avoid shading try using a 1 x 14 thread extension mast available at most marine dealers To install the GPS antenna 1 Screw the antenna directly onto the 1 x 14 thread mount 2 Route the cable to the mounting location of the display unit Use appropriate tie wraps fasteners and sealant to secure the cable along the route and through any bulkhead or deck 3 Once the GPSMAP 178C unit has been installed connect the cable to the antenna connector on the back of the display unit Make sure that you turn the antenna cable connector 1 4 turn clock wise to lock the cable into place It is possible to route the coaxial cable either through or outside the antenna mount It is possible to remove the BNC connector on the coaxial cable and shorten the coaxial cable to ease installation however doing so voids the antenna warranty If the BNC connector is removed it must be replaced with a new solder on or crimp BNC RG 58 or 59 compatible connector Suggested locations for mounting the GA 29 antenna GPSMAP178CManual indd 92 3 19 2004 3 10 52 PM 93 Appendix A Unit Installation Mounting the GPSMAP 178C Unit The GPSMAP 178C s compact waterproof case is suitable for mounting in exposed locations or at the nav station The unit comes with a gimbal bracket that can be used for surface or overhead
87. equency approximately covers the area of a 6 foot diameter circle at a 30 foot depth When using the GPSMAP 178C in Dual frequency mode the unit transmits both 50kHz and 200kHz signals at the same time The Dual frequency capability of the GPSMAP 178C allows you to have a large coverage area and still retain good bottom resolution When in Dual frequency mode the unit uses the narrow cone angle 200kHz to display detailed bottom information keeping Dead Zones to a minimum and the wide cone angle 50kHz for the large coverage area Fish returns from the wide and narrow beams appears differently on the display The wide beam tends to show longer sh returns than the narrow beam Wide Cone Angle Narrow Cone Angle 200kHz 10 Cone Angle 72 coverage at 30 50kHz 40 Cone Angle 20 coverage at 30 GPSMAP178CManual indd 112 3 19 2004 3 11 11 PM 113 Appendix G Understanding the Chart Understanding the Graph It is important to understand that the unit does not display a 3 D representation of the underwater environment The unit can display multiple things at the same time but cannot determine where the return originated only when it was received Examples 1 and 2 provide a look at the underwater world from a top view and illustrate how these views would be displayed on the graph On both graphs it appears the sh and tree are side by side as shown in Example 1 However when we look at Examp
88. er To graphically initialize the GPSMAP 178C Sounder 1 Press the MENU key twice for the Main Menu Press Up or Down on the ARROW KEYPAD until the GPS tab is highlighted then press the MENU key once 2 Using the ARROW KEYPAD highlight Initialize Position and press ENTER to initialize the receiver from the map The Initialize Position Page appears prompting you to select your approximate location with the map cursor 3 Use the ARROW KEYPAD to move the map cursor and point to your approximate location within 200 miles If you have dif culty identifying your position press and release the IN key to see the next lower map scale 4 Once you have determined your approximate location on the map press the ENTER key NOTE This does not calibrate the unit in any way but rather helps to speed up the initial satellite acquisition If the unit displays Ready 2D or 3D during this process it is not necessary to initialize the unit The GPS Information Page appears as the receiver begins acquiring satellites for your region and should acquire a x within a few minutes When viewing the GPS tab on the Main Menu a signal strength bar for each satellite in view appears on the bottom of the page with the appropriate satellite number under each bar The progress of satellite acquisition is shown in three stages No signal strength bars the receiver is looking for the satellites indicated Hollo
89. es that are used to secure the bracket to the mounting surface 2 If securing the base with machine bolts drill three 5 32 5mm holes at the locations you marked OR if securing the base with self tapping screws drill starter holes at the locations you marked Starter holes should generally be no deeper than half the screw length 3 Secure the swivel base with three bolts or screws DO NOT OVERTIGHTEN 4 Place the rest of the mount over the swivel base and secure with the short knob Secure the base and attach the mount The swivel base is designed to be secured using a pan head screw or machine bolt If you use a screw with a countersunk head you risk damaging the Mounting Base OK GPSMAP178CManual indd 93 3 19 2004 3 10 53 PM 94 Appendix A Unit Installation Installing the Unit on the Mounting Bracket 1 Align the slot on the back of the unit with the long mounting knob and slide in place It may be necessary to adjust the long mounting knob to spread the bracket arms apart Turn counter clock wise to widen the bracket arms clockwise to tighten 2 Adjust the unit angle and tighten the long mounting knob until snug 3 To tilt the unit loosen the long mounting knob on the right side of the bracket assembly 4 To rotate the entire bracket twist it left or right The bracket clicks as you turn it 5 Tighten all knobs once the desired viewing angle is obtained Slide the unit onto the bracket Adjust for
90. ess and release a key to perform its primary func tion Press hold for more than one second then release the ENTER MARK NAV MOB and MENU keys to activate their secondary function GPSMAP178CManual indd 1 3 19 2004 3 09 49 PM 2 Getting Started Selecting Options The GPSMAP 178C Sounder s advanced keypad system is designed to allow for fast convenient selection of navigation options and data entry The Getting Started Tour introduces you to the keypad and provides a hands on lesson in using the GPSMAP 178C Sounder We strongly encourage you to follow the Getting Started tour before using your unit for actual navigation The GPSMAP 178C Sounder Quick Reference Guide contains helpful tips on using the unit and performing various naviga tion tasks Selecting Options and Entering Data You can select and activate options and enter data to customize the GPSMAP 178C Sounder to t your requirements You can use the ENTER MARK key and ARROW KEYPAD to select options enter names and numbers in data elds and activate your selections To select and activate an optional feature 1 With any page displayed press the MENU key to pop up the options menu The options menu dis plays a list of optional features which are speci c for that particular page To select any feature on the list of options requires movement of the cursor which is identi ed as highlighting selecting or choosing an item in a list or a eld
91. eview page appears for the selected waypoint 3 With OK highlighted press ENTER to con rm The distance eld is now highlighted 4 Press ENTER to begin entry of the proximity radius 5 Use the ARROW KEYPAD to enter a distance value to 99 99 units and press ENTER To turn proximity alarms on or off 1 Use the ARROW KEYPAD to highlight the eld below Proximity Alarm and press ENTER 2 Select the desired ON or OFF setting and press ENTER The following options are available from the Proximity submenu of the Points tab Delete Alarm removes selected waypoint from proximity list Delete All removes all waypoints from proximity list To display the waypoint menu options 1 Using the ARROW KEYPAD highlight the Proximity tab and press MENU To clear one or all proximity waypoint s from the list 1 Use the ARROW KEYPAD to highlight the proximity waypoint to clear and press MENU 2 To clear a single alarm highlight the Delete Alarm option and press ENTER 3 To clear all proximity waypoints select the Delete All option and press ENTER 4 Use the ARROW KEYPAD to highlight the OK prompt and press ENTER to con rm Proximity Waypoints List A dashed circle appears showing the alert boundary for the proximity waypoints Proximity Circle Proximity Waypoint GPSMAP178CManual indd 52 3 19 2004 3 10 24 PM 53 Reference G
92. exceeded a speci ed drift distance Enter a value in the distance eld and use the control eld to turn the alarm on and off Arrival sets an alarm to sound when you re a speci ed distance or time away from a destina tion waypoint Enter a distance radius or time for sounding the alarm and use the control eld to set the alarm to Off Dist Distance or Time Off Course sets an alarm to sound when you re off a desired course by a speci ed distance Enter a distance in the distance eld and use the control eld to turn the off course alarm on Advanced NMEA Setup Page Main Menu Alarm Tab System Submenu GPSMAP178CManual indd 90 3 19 2004 3 10 50 PM 91 Reference Main Menu Alarm Tab and off Sonar Submenu Tab Shallow Water Deep Water set alarms to sound when you enter an area of speci ed depth that is too shallow and or too deep You must be receiving sonar data for this function to work Water Temperature sets an alarm to sound when the transducer reports a temperature either above below inside or outside the speci ed values Fish sets an alarm to sound when the unit detects a sh of the speci ed size symbol s To set an alarm 1 Use the ARROW KEYPAD to highlight desired submenu tab of the Alarm Tab 2 Highlight the eld below the alarm name you wish activate and press ENTER 3 Change the mode to the desired setting and press
93. ference Sonar Page Options To calibrate the water speed 1 On the Sonar tab use the ARROW KEYPAD to highlight Calibrate Water Speed and press ENTER 2 Bring the boat to a cruising speed The top ground and uncalibrated water speeds are shown at the bottom of the calibration window Note your top water speed then stop the boat and press ENTER 3 By default the top ground speed is automatically shown in the What was your top water speed eld If a ground speed is not available the top uncalibrated water speed is used instead If the new speed is correct highlight OK and press ENTER If you wish to manually enter a calibration press ENTER on the speed eld enter a new speed and press ENTER 4 You may also press MENU from the calibration screen and choose Use Top Ground Speed to default back to ground speed or Use No Calibration to use the speed sensor s uncalibrated speed NOTE If the boat is not moving fast enough or the speed sensor is not outputting a speed you see a Boat Is Not Moving Fast Enough To Calibrate message at the bottom of the display Check that the speed sensor wheel is moving or safely increase boat speed If there is a problem with the speed sensor unit or if a speed senor is not installed a Water Speed Sensor Is Not Working message appears at the bottom of the display Check connections of speed sensor cables Set Up Page Layout layout of the data elds ma
94. for future use The Track Tab also provides an indicator of the memory used for the active track log and options to clear the track memory or start a TracBack route See page 54 for TracBack information The Track submenu is divided in two tabs Active tab and the Saved tab Active Submenu Tab is for the active log the log currently being recorded It displays track memory used and current settings For the Active tab the following settings are available Record Mode lets you select one of three track recording options Off No track log is recorded Note that selecting the Off setting prevents you from using the TracBack feature Fill a track log is recorded until the track memory is full Wrap A track log is continuously recorded wrapping through the available memory replacing the oldest track data with new data Color lets you choose a color that is used to display the active track log Interval de nes the frequency at which the track plot is recorded Three interval settings are available Distance records track based on a user de ned distance between points Time records track plot based on a user de ned time interval Resolution records track plot based upon a user de ned variance from your course over ground The resolution option is the default setting and is recommended for the most ef cient use of memory and TracBack performance The distance value entered in th
95. ge Compass Page Map Sonar Split Page Sonar Page GPSMAP178CManual indd 8 3 19 2004 3 09 55 PM 9 Getting Started Map Cursor Using the Map Cursor Working from the Map Page is a simple process that centers around the use of the cursor Con trolled by the ARROW KEYPAD the cursor is an important tool that can be used to pan to other map locations mark and edit waypoints and routes and review position data of on screen map items and waypoints To get a feel for using the Map Page and using the cursor try the following exercise 1 Use the IN OUT keys to set the map scale to the 50 nm setting Your boat should be near the center of the map at the receiver s last known position If your boat isn t where it should be make sure that you have initialized the receiver and acquired a position as described on pages 4 5 2 Use the ARROW KEYPAD to move the cursor Notice how another data eld appears showing the bearing and distance from your boat to the cursor along with the latitude longitude of the cursor 3 Press the QUIT key to remove the cursor and re center your boat on the map display As you become more familiar with the cursor you ll see that the map display actively scrolls or pans letting you explore areas around the world and create waypoints and routes Wherever you move the cursor you ll always be just one QUIT keystroke away from returning the map to your present position Now that you ve seen
96. ge dis plays when a Distress Call is received To notify you a Distress Call has been received an alarm sounds if enabled The alarm only sounds on a Distress Call and it does not sound on a Position Report Distress Calls are broadcasted to all DSC users in radio range Options available from this screen are Show on Map If you immediately want to see the caller s position they select Show on Map Create Waypoint If you want to create a waypoint of that position highlight Create Waypoint and press ENTER MARK You also have the ability to input a caller s name if it is known The caller s name replaces the MMSI number as a reference once it is entered DSC Position Report The Position Report operates similarly to the Distress Call Remember this type of contact is like a phone call but no emergency alarms are set off and the call is speci c to the receiver Position Reports are not broadcasted to all DSC users Distress Call Message Position Report Message GPSMAP178CManual indd 79 3 19 2004 3 10 44 PM 80 Main Menu DSC Tab Reference DSC Call List The DSC Call List displays the current calls received The GPS can manage up to 50 calls When calls are received they are updated constantly to give the most current information even if the unit is left unattended Any entry from the Call List can be selected to show an Entry Review DSC Log When DSC calls are received they are autom
97. ghted press ENTER To stop navigation 1 Press the NAV key Use the ARROW KEYPAD to highlight Stop Navigation and press ENTER TracBack Navigation Follow Track The TracBack function allows you to retrace your path using the track log automatically stored in the receiver s memory which eliminates the need to store waypoints along the way TracBack routes are created by reducing your track log into a route of up to 50 turns and activating an inverted route along those points Once activated a TracBack route leads you back to the oldest stored track log point so it s a good idea to clear the existing track log before you start your current trip To clear the track log and de ne a starting point for a TracBack route 1 Press MENU twice to display the Main Menu page 2 Using the ARROW KEYPAD highlight the Track tab then highlight the Active tab to the right 3 Use the ARROW KEYPAD to highlight Erase and press ENTER 4 Highlight OK and press ENTER You must rst save the track log before you can use the Follow Track feature The Save feature allows you to store up to 15 track logs from certain times and dates To save a track log 1 From the Main Menu use the ARROW KEYPAD to highlight the Track tab then highlight the Active tab to the right GPSMAP178CManual indd 54 3 19 2004 3 10 26 PM 55 Reference TracBack Navigation 2 Use the ARROW KEYPAD to selec
98. ghway moves to give you graphic guidance to get back on course You can zoom in or out on the Highway display for a smaller or larger view Five available set tings range from 1X to 16X with a default setting of 8X The current scale appears in the bottom right of the display To zoom in or out on the highway display 1 Press either the IN or OUT key to increase or decrease the zoom scale Changing Data Fields The data elds on the main pages may also be con gured to display several different information categories see pages 30 31 for the complete list On the Highway Page let s change the TIME TO NEXT eld to TIME OF DAY To change a data eld 1 Press the MENU key to display the Highway Page options 2 With Change Numbers highlighted press ENTER 3 Use the ARROW KEYPAD to highlight TIME TO NEXT then press ENTER 4 On the alphabetical list of options press UP or DOWN on the ARROW KEYPAD to highlight a selec tion Press LEFT or RIGHT to jump through the list a page at a time The scroll bar on the right side of the window indicates the current position on the entire list of options Select TIME OF DAY and press ENTER 5 Press QUIT when nished You may choose from several different types of data GPSMAP178CManual indd 18 3 19 2004 3 10 03 PM 19 Getting Started Changing Data Fields Active Route Page The layout of the data elds may also be changed to sh
99. hat can be used to de ne an alarm circle around submerged hazards shallow waters etc To access the waypoint submenus of the Main Menu 1 Press MENU twice highlight the Points tab using the ARROW KEYPAD then highlight the desired submenu tab User Waypoint List The User submenu of the Points tab displays a master list of all waypoints currently stored in memory From the User list you may review edit rename or delete individual waypoints or delete all user waypoints The total number of stored and available waypoints is displayed at the bottom of the User page with the stored waypoints arranged in numerical alphabetical order To scroll through and review the waypoint list 1 With the ARROW KEYPAD highlight the Points tab on the main menu then highlight User 2 Use the ARROW KEYPAD to scroll through the list in the desired direction 3 Press ENTER to review the highlighted waypoint on the Waypoint Edit page see page 48 for detailed information on reviewing and editing waypoints 4 With Next highlighted press ENTER to return to the list The eld highlight automatically moves to the next waypoint in the list The following options are available by pressing MENU while highlighting the Points tab the User submenu or one of the User waypoint names Create Waypoint allows you to create a waypoint See page 44 Delete Waypoint deletes selected waypoint from list and any ro
100. he FIND key allows you to search the unit for user waypoints map items and any optional BlueChart or MapSource information loaded on a data card Press the FIND key to search for items from your current location by default You may also search from other locations When you press FIND a list of available items to search for appears The default items are Waypoints Cities Tide Sta tions and Transportation Additional items such as Anchorages Businesses Exits Navaids Restricted Areas Wrecks Obstructions etc are displayed depending on the optional BlueChart or MapSource data card inserted into the unit If you pan around on the Map Page and press FIND the unit centers its search from the point where the cursor is located When using BlueChart or MapSource data your position or the map pointer must be within the map outline area to search for information from that area To nd a waypoint or other item from your current location 1 From any page press FIND 2 Using the ARROW KEYPAD highlight the desired category from the list and press ENTER 3 For Waypoints and Cities you may search using By Name or Nearest Use the ARROW KEYPAD to highlight the desired tab For By Name you may use the top eld to spell out the name or scroll down through the list To nd a waypoint or item from another location 1 Once the search results list is displayed for a particular item press MENU 2 Highlight Neares
101. he caller s position to assist or forward the call on to the Coast Guard When the Coast Guard receives the call they can immediately access the caller s information such as who they are and the type of vessel in their database while they are in transit to the caller s position A non emergency DSC Position Report allows mariners to exchange and display the positions of one another Once a DSC position is received the mariner may choose to create a waypoint or to show the received position on an electronic map Any time a vessel receives a DSC call they can store that location and quickly navigate to that position using a Go To This makes DSC a time saver especially in an emergency situation In order to use DSC users must rst register their VHF radio with the FCC and receive a Maritime Mobile Service Identity MMSI number What is A Maritime mobile service identity MMSI Maritime Mobile Service Identity MMSI basically allows a VHF radio to act like a phone In order to make a call on a phone you rst need a phone number to dial The 9 digit MMSI number acts like a phone number when used in a Position Report and as a unique identi er to the Coast Guard when used in an emergency Distress Call In order to obtain a Maritime Mobile Service Identity MMSI number users must register their VHF radio with the FCC Form 605 Garmin does not supply this number DSC Tab GPSMAP178CManual indd 77 3 19 2004 3 10 43 PM
102. ht Create Wpt and press ENTER 3 The New Waypoint page appears To accept the waypoint with the default name and symbol based on the map feature highlight OK and press ENTER To change the name symbol position or enter comments depth or water temp highlight the appropriate eld and press ENTER Make your changes and press ENTER After entering and con rming your changes use the ARROW KEYPAD to highlight OK and press ENTER Creating a waypoint on an open map location Using a map item to create a new waypoint GPSMAP178CManual indd 45 3 19 2004 3 10 20 PM 46 Reference Creating Waypoints Additional Options For Creating Waypoints Waypoints may also be created by manually entering position coordinates through the Points tab of the Main Menu This method can be useful for creating a waypoint at a speci c latitude longitude position from a chart To create a new waypoint by entering location coordinates 1 Press MENU twice to display the Main Menu Highlight the Points tab and press MENU 2 Highlight Create Waypoint and press ENTER The New Waypoint page appears with the next available waypoint number and the receiver s last know position as the default name and position 3 Use the ARROW KEYPAD to highlight the position eld and press ENTER Use the ARROW KEYPAD to enter the desired position coordinates and press ENTER when nished 4 To change the name sy
103. ht Next and press ENTER You may also activate a TracBack from any of the saved tracks on this tab To activate a TracBack from the Saved tab list 1 Using the ARROW KEYPAD highlight the track you wish to use for a TracBack and press NAV 2 The Follow lt track name gt automatically appears highlighted Press ENTER 3 Choose either Original which navigates you from the end to the start of your trip or Reverse which navigates you from the start to the end of your trip and press ENTER The track name automatically appears when highlighted on the Saved list and NAV is pressed GPSMAP178CManual indd 76 3 19 2004 3 10 42 PM 77 Reference Main Menu DSC Tab DSC Tab allows to control and set up DSC Digital Selective Calling features on the unit What is Digital selective calling DSC Digital Selective Calling DSC uses marine VHF radio and Global Positioning System GPS tech nologies to transmit and receive location information DSC is used by mariners to assist them in two major areas Distress Calls and Position Reporting An emergency DSC Distress Call allows a vessel in trouble to transmit a substantial amount of infor mation in a single transmission or call without the need for voice communication When any nearby rescuer receives the DSC signal an alarm sounds and they immediately receive the position of the caller The rescuer may then choose to navigate Go To t
104. hway Page Highway Page When a Go To TracBack or route has been activated the GPSMAP 178C s Highway Page provides digital and graphic steering guidance to the destination The top half of the Highway Page features user selectable data elds that display useful navigation data The bottom section of the screen provides visual guidance to the waypoint on a graphic highway display The line down the center of the highway represents your desired track line As you head toward your destination the highway perspective moves to indicate your progress to the waypoint and which direction you should steer to stay on course If you are navigating a route the Highway Page shows each route waypoint in sequence connected by a red road with a yellow line down the middle which is your desired track line Nearby waypoints not in the active route can also be displayed The highway perspective scale may also be zoomed in or out to display a larger or smaller view of the highway Five settings are available from 1X to 16X with a default setting of 8X To change the highway perspective scale 1 Press the ZOOM IN or ZOOM OUT key to select the desired setting The Highway Page options menu provides access to functions and features relating to the Highway Page and the layout options The data window located at the top of the page provides a user selectable layout of various types of useful data Each data eld may be con gured to display several
105. il You may also manually enter a frequency and bit rate Status Field SNR and Distance shows data when signal is received GPSMAP178CManual indd 88 3 19 2004 3 10 49 PM 89 Reference Main Menu Comm Tab NMEA Interface If you are going to interface the GPSMAP 178C with another piece of equipment such as a radio or autopilot the unit needs to be set to output NMEA data More information on wiring and NMEA data may be found on page 96 To activate the NMEA data 1 On either port of the Comm Tab highlight the Serial Data Format eld and press ENTER 2 Select NMEA In NMEA Out and press ENTER Advanced NMEA Output Setup The GPSMAP 178C NMEA data transmission can be customized to change the precision of the Lat Lon minutes set up the waypoint IDs and keep the output rate at two seconds If the unit is set up to output all of the available NMEA sentences the output rate may exceed two seconds The Advanced NMEA Output Setup page allows you to turn on off the GPS status GSA GSV Waypoint Route WPL RTE and the Garmin Proprietary sentences See page 96 for more information on wiring and NMEA data Lat Lon Minutes Precision allows you to adjust the number of digits to the right of the decimal point for transmission of NMEA Output either 2 3 or 4 digits The Waypoint ID setting lets you choose to output the waypoint identi ers as names or numbers To set up the Advanced NMEA page 1
106. in the middle of the compass ring and a bearing bug indi cator on the outside of the compass ring indicate the direction of the destination bearing relative to the course over ground The compass ring and pointer arrow work independently to show at a glance the direction of your movement and the direction to your destination For instance if the arrow points up you are going directly to the waypoint If the arrow points any direction other than up turn toward the arrow until it points up then continue in that direction The bearing pointer bearing bug and or compass ring may point in various directions when you are stationary or at very low speeds Once you start moving the pointer is correct The GPSMAP 178C s Compass Page features a menu page that provides access to layout and data eld options The data window located at the top of the page provides a user selectable layout of vari ous types of useful data Each data eld may be con gured to display several data options To display the Compass Page options 1 Press MENU To select a menu option 1 Use the ARROW KEYPAD to highlight the desired option and press ENTER For detailed instructions on changing data elds and layout of the Compass Page see pages 29 31 Reference Compass Page Destination Data Fields Compass Ring Bearing Pointer Bearing Bug GPSMAP178CManual indd 41 3 19 2004 3 10 17 PM 42 Reference Hig
107. inates depth or water temp for the selected waypoint Once the changes have been made high light OK Waypoint Review Page or Next Waypoint Edit Page and press ENTER to save them To change the waypoint name 1 Highlight the waypoint name eld and press ENTER 2 Use the ARROW KEYPAD to enter a new name and press ENTER when done To change the waypoint symbol 1 Highlight the waypoint symbol eld to the left of the waypoint name and press ENTER 2 Use the ARROW KEYPAD to select the desired symbol and press ENTER when done GPSMAP178CManual indd 48 3 19 2004 3 10 22 PM 49 Reference Editing Waypoints To change the comment position coordinates depth water temperature 1 Highlight the desired eld and press ENTER 2 Use the ARROW KEYPAD to edit enter the data To drop to the next line press to the right on the ARROW KEYPAD Press ENTER when done On the Waypoint Review and Waypoint Edit pages you may also delete the selected waypoint view the waypoint on the map and move the waypoint on the map To delete a waypoint 1 On the Waypoint Review Waypoint Edit page use the ARROW KEYPAD to highlight Delete and press ENTER 2 With OK highlighted press ENTER again to con rm the deletion To view and move a waypoint on the map 1 From the Waypoint Review Waypoint Edit page highlight Show Map and press ENTER The waypoint is highlighted on a map screen with an info
108. itivity may increase the clarity of the display Target Level adjusts the color range of a return or target A Color Bar see also page 39 appears on the right side of the screen as you adjust this setting A higher percentage setting results in stronger signaled returns see page14 This setting does not increase decrease the unit Gain Whiteline controls how the unit displays information about the bottom type hard or soft With the Whiteline Off the bottom return displays as red and contains no information on bottom hardness With Whiteline set at Normal or 1 100 the bottom return becomes white with a red line indicating where the water meets the bottom To turn the Whiteline Off press the ARROW KEYPAD DOWN until the setting bar is all the way at the bottom of the range and reads Off See page 114 for more detail on this feature Frequency allows you to choose a transducer frequency Frequency refers to the pitch of the sound that the transducer sends and receives You may choose 200kHz 50kHz or Dual frequency View Adjustment Gain Adjustment Target Level Adjustment Whiteline Adjustment Frequency Adjustment GPSMAP178CManual indd 35 3 19 2004 3 10 13 PM 36 Sonar Page Options Reference Depth Line adds a horizontal depth line across the display which is used to measure the depth of underwater objects The depth of the line appears in a box on the right side of the lin
109. ivate uses the route as is Invert and Activate reverses the route then activate it To deactivate stop navigation of a route 1 Press the NAV key highlight Stop Navigation and press ENTER Route List Page The GPSMAP 178C Route List page Route tab of the Main Menu displays all the routes currently stored in memory along with a descriptive name for each route By pressing MENU while on the Route List page the following menu options appear New Route page 57 Copy Route Delete Route or Delete All To select and follow a route 1 On the Route List page use the ARROW KEYPAD to highlight the desired route and press NAV 2 With Follow lt route name gt highlighted press ENTER Highlight Activate or Invert and activate and press ENTER To deactivate stop following the route 1 Press the NAV key highlight Stop Navigation and press ENTER To copy or delete a route 1 From the Route List using the ARROW KEYPAD highlight the route you want to copy or delete and press MENU 2 Choose either Copy Route or Delete Route and press ENTER and with OK highlighted press ENTER again to con rm a deletion Copy uses the same route name with an additional number starting at 1 at the end of the route name To delete all routes 1 From the Route List press MENU 2 Highlight Delete All and press ENTER With OK highlighted
110. layed at the bottom of the signal strength indicator bars for the satellites that are corrected GPSMAP178CManual indd 70 3 19 2004 3 10 38 PM 71 Reference Main Menu GPS Tab The Differential SNR Signal to Noise Ratio indicates on a scale to 0 30db with 30db being the best the strength of the DGPS signal being received The SNR depends upon the mounting of your DGPS receiver and the distance from the DGPS transmitting station The GPS Info tab features an options menu that provides access to functions and features relating to the GPS Info display The following options are available by pressing MENU on the GPS Info Tab of the Main Menu Start Stop Simulator toggles the unit simulator on or off Retail Demo mode restores factory settings to the unit if left unattended for over two minutes This mode should only be used for display purposes User waypoints are NOT deleted WAAS On WAAS Off toggles the WAAS capability of the receiver on or off Track Up North Up allows you to select between a north up or track up sky view display for the GPS Info display only AutoLocate allows the receiver to locate your position automatically This process can take up to ve minutes Initialize Position allows you to initialize the receiver graphically on the Map Page to initially help the receiver acquire more quickly See page 4 for instructions on initialization Set 2D Elevation allows you to
111. le as you approach you destination point Color Mode For Sun For Dark For Sun mode uses a bright color scheme for daylight viewing For Dark mode uses a dark color scheme for night viewing Source Tab Basemap On Off turns the built in base map on or off Data Card Maps On Off turns all optional BlueChart MapSource data loaded on the data card on or off The Data Card Maps option box shows a list of the optional BlueChart MapSource data loaded on the data card Each area is described by name and may be dese lected if you do not wish to display the data on the Map Page To display the Map Information Page 1 Highlight the Data Card Maps option box and press ENTER 2 Use the ARROW KEYPAD to scroll through the list of maps 3 To select deselect a map family highlight the check box to the left of the name and press ENTER to select deselect the map The map is selected and is displayed on the Map Page when an appears in the box adjacent to that map You may also press MENU and choose to Show All or Show None and press ENTER continued Source Tab Data Card Maps Map Information Page General Tab GPSMAP178CManual indd 27 3 19 2004 3 10 08 PM 28 Reference Map Page Options 4 To display detailed information notes for each area or to turn individual maps in the family on off highlight the family name and press ENTER To view the notes for that area choos
112. le 2 we see that the sh can be several feet from the tree It is important to remember that the sonar cannot determine where in the coverage area the tree or sh are only that the returns were received at the indicated depths in the same time frame Remember that the sonar displays a 2 D picture of the underwater environment The sh and tree could be located anywhere in the coverage area at that time Example 2 Example 1 Branches Fish Enlarged Transducer View Branches Fish Enlarged Transducer View GPSMAP178CManual indd 113 3 19 2004 3 11 13 PM 114 Appendix G Understanding the Graph Whiteline The GPSMAP 178C can help you to determine if the bottom is hard or soft When the sonar soundwaves are re ected back by the bottom a hard bottom returns a stronger signal than a soft bottom A thin whiteline indicates a softer bottom while a thick whiteline indicates a harder bottom Normally a red dark line is used to show the point where water meets the bottom This line follows the bottom contour along with any signi cant objects lying on the bottom The unit uses the whiteline function to make this bottom layer information easier to distinguish With the GPSMAP 178C active whiteline helps accentuate where strong signals are located which make bottom type determination easier The example to the right shows the bottom return with and without the whiteline activated Whiteline can also help you t
113. le from any page and is accessed through the MENU key To access the main menu page 1 Press the MENU key twice or hold down the MENU key for two seconds The Main Menu page lists 16 vertical tabs that are divided into categories by function You can view a particular menu by simply highlighting the desired tab which shows any secondary horizontal submenu tabs and options for that tab To get a basic feel for how the Main Menu page works let s delete the two waypoints you created during the simulated tour This ensures that you have a clean slate once you start navigating in your home waters To delete the practice waypoints 1 Use the ARROW KEYPAD to highlight the Points menu tab You see a list of stored waypoints appear to the right of the Main Menu list 2 Press RIGHT one time on the ARROW KEYPAD to highlight the User submenu tab 3 Press DOWN on the ARROW KEYPAD and highlight waypoint 001 with the shipwreck symbol 4 You may delete the waypoint by either pressing MENU then highlighting Delete Waypoint or by pressing ENTER and then highlighting Delete from the Waypoint Edit page 5 Press ENTER to delete the waypoint then ENTER again to con rm Repeat the above steps to delete the Dock waypoint also Main Menu Main Menu Tabs Submenu Tabss GPSMAP178CManual indd 20 3 19 2004 3 10 04 PM 21 Getting Started Powering Off Unit Congratulations You ve n
114. lightly inside the indicated line and then sand or le the panel as needed to obtain the best t 6 Install the four Mounting Studs into the unit by screwing the shorter section into the back of the unit Use a 1 16 2mm Allen Wrench to tighten the Mounting Studs until the stops contact the case Be careful not to overtighten as this may damage the Mounting Stud The studs have a reus able thread locking patch pre applied from the factory 7 Place the unit in position inside the cutout area of the mounting surface 8 Place washers over the Mounting Studs then thread on one Hex Nut per Mounting Stud Tighten all four Hex Nuts until the unit is snug against the mounting surface Install and tighten the second Hex Nut on all four Mounting Studs to lock the rst Hex Nut in place Studs Washer Hex Nuts GPSMAP178CManual indd 95 3 19 2004 3 10 57 PM 96 Appendix A Wiring and Interfacing Connecting the Power Data Cable The power data cable connects the GPSMAP 178C to 10 35 volt DC system and provides interface capabilities for connecting external devices The color code in the diagram below indicates the appro priate harness connections Interfacing The following formats are supported for connection of external devices Garmin proprietary Dif ferential GPS DGPS NMEA 0183 version 3 01 RTCM SC 104 input version 2 0 The following are the sentences for NMEA 0183 version 3 01 output Approved sentences GPB
115. low Route 11 Follow Track 11 54 Frequency 14 15 35 Full Screen Map 25 G Gain 15 35 General Tab 27 Going to a Destination 11 53 54 Go To 53 Go To Point 11 53 GPS Information Page 5 6 GPS Status 5 70 GPS Tab 68 71 Grids 84 H Heading 85 Heading Line 29 Hide Numbers 37 Hide Pointer 37 Highway Page 17 18 42 Highway Page options 42 Highway Scale 42 How To Index viii I Initialize Position 71 Initializing 4 Installation 92 100 Interfacing 96 IN Key 1 22 24 K Keel Offset 39 40 Keypad 1 2 L Language 83 Lat Lon Grid 29 Light Sectors 28 Loran TD 84 102 103 Loran TD Setup 103 M Magnetic North 85 Main Menu 20 Main Menu Page 67 Main Menu Tabs 67 68 Main Pages 8 Map Set Up 26 Map Sonar Split Page 14 32 GPSMAP178CManual indd 119 3 19 2004 3 11 16 PM 120 Appendix I Index MapSource 27 Map Cursor 9 Map Datums 85 104 105 Map Information Page 27 Map Item 11 Map Outlines 29 Map Page 8 9 22 Map Page Options 25 Map Scales 12 24 Map Split Sonar Detail 39 Marking Position 44 Marking Waypoints 10 MARK Key 1 44 45 Measure Distance 26 MENU Key 1 MENU key 20 Merge From Card 82 Messages 106 107 MGRS 84 MMSI Number 77 78 81 MOB 56 MOB Key 1 56 Moon Phase 74 Moon Rise Set 74 Mounting the Transducer 98 99 Move Waypoint 47 Moving Waypoints 49 N Navaids Set Up 28 Navaids Tab 28 Navigation Terms 108 109 NAV Key 1 53 56 82 Nav Line Tab 29 Nearest To Bo
116. lowing measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help The GPS 178C Sounder does not contain any user serviceable parts Repairs should only be made by an authorized Garmin service center Unauthorized repairs or modi cations could result in permanent damage to the equipment and void your warranty and your authority to operate this device under Part 15 regulations GPSMAP178CManual indd ii 3 19 2004 3 09 44 PM iii Introduction Warnings and Cautions The GPS system is operated by the United States government which is solely responsible for its accuracy and maintenance The system is subject to changes which could affect the accuracy and performance of all GPS equipment Although the Garmin GPSMAP 178C is a precision electronic NAVigation AID NAVAID any NAVAID can be misused or misinterpreted and therefore become unsafe The electronic chart is an aid to navigation and is designed to facilitate the use of authorized government charts not replace them Only of cial government charts and notices to mariners contain all information needed for safe navigation and as always the user is responsible for their prudent use Use the GPSMAP 178C at your own risk To reduce the
117. mbol or enter comments depth or water temp highlight the appropriate eld and press ENTER Make your changes and press ENTER when nished 5 Use the ARROW KEYPAD to highlight OK and press ENTER to save the waypoint A waypoint may also be created by projecting the distance and bearing from a speci c location to a new location Start by accessing the New Waypoint page or the New Map Waypoint page To create a new waypoint by projecting its location 1 To project the waypoint from your current location be sure the eld to the right of the word From reads Current Position if not highlight the eld and press ENTER highlight Current Position and press ENTER 2 To select a map location from which to project a waypoint highlight the eld next to From and press ENTER The Find screen appears Highlight Other Position and press ENTER Use the zoom IN key and ARROW KEYPAD to highlight the desired position on the map and press ENTER Highlight the position eld and use the ARROW KEYPAD to enter the desired position coordinates Select a point from which to project a new waypoint GPSMAP178CManual indd 46 3 19 2004 3 10 20 PM 47 Reference Creating Waypoints 3 To select another location from which to project a waypoint highlight the eld next to From and press ENTER The Find screen appears Highlight the desired type of location
118. mount ing When choosing a location for the display unit make sure you consider the following conditions There should be at least a 3 5 cm clearance behind the case to allow connection of the antenna external antenna only power data cables The mounting surface should be heavy enough to support the unit and protect it from exces sive vibration and shock For GPSMAP 178C with a built in internal antenna it should be mounted in a location that has the clearest most unobstructed view of the sky in all directions to ensure the best reception Avoid mounting the unit where it is blocked by the boat s superstructure a radar arch or mast NOTE The temperature range for the GPSMAP 178C is 5 F to 158 F 15 C to 55 C Extended exposure to temperatures exceeding this range in storage or operating conditions may cause failure of the LCD screen This type of failure and related consequences are NOT covered by the manufacturer s limited warranty To swivel mount the GPSMAP 178C display Tools not included Drill Screwdriver Phillips or Standard three 8 4mm pan head machine bolts with matching nuts and washers and a 5 32 5mm drill bit OR three 8 pan head self tap ping screws and an appropriately sized drill bit for drilling starter holes Always wear safety goggles ear protection and a dust mask when drilling cutting or sanding 1 Using the swivel base as a template mark the location of the three hol
119. nd Luzon Philippine Luzon Philippines excluding Mindanao Isl Mahe 1971 Mahe 1971 Mahe Island Marco Astro Marco Astro Salvage Isl Massawa Massawa Eritrea Ethiopia Merchich Merchich Morocco Midway Ast 61 Midway Astro 61 Midway Minna Minna Nigeria NAD27 Alaska North American 1927 Alaska NAD27 Bahamas North American 1927 Bahamas excluding San Salvador Island NAD27 Canada North American 1927 Canada and Newfoundland NAD27 Canal Zone North Am 1927 Canal Zone NAD27 Caribbn North American 1927 Caribbean Barbados Caicos Islands Cuba Dom Rep Grd Cayman Jamaica Leeward and Turks Islands NAD27 Central North American 1927 Central America Belize Costa Rica El Salvador Guatemala Honduras Nicaragua NAD27 CONUS North Am 1927 Mean Value CONUS NAD27 Cuba North American 1927 Cuba NAD27 Grnland North American 1927 Greenland Hayes Peninsula NAD27 Mexico N American 1927 Mexico NAD27 San Sal North American 1927 San Salvador Island NAD83 North American 1983 Alaska Canada Central America CONUS Mexico Nhrwn Masirah Nahrwn Masirah Island Oman Nhrwn Saudi A Nahrwn Saudi Arabia Nhrwn United A Nahrwn United Arab Emirates Naparima BWI Naparima BWI Trinidad and Tobago Obsrvtorio 66 Observatorio 1966 Corvo and Flores Islands Azores Old Egyptian Old Egyptian Egypt Old Hawaiian Old Hawaiian Mean Value Oman Oman Oman
120. nd press ENTER 2 Move the cursor to the new map position and press ENTER To add points to the beginning or end of the route 1 With the map cursor select the rst route waypoint to add waypoints to the beginning of the route or last to add waypoints to the end of the route and press MENU 2 Highlight the Add option and press ENTER 3 Move the cursor to the new point or position and press ENTER 4 If you are not adding an existing waypoint press ENTER to con rm the new waypoint 5 Repeat steps 3 and 4 to add additional waypoints or press QUIT to nish Highlight a route point and press ENTER to review it Choose Next to center the map on the next point in the route You can step through the points by repeatedly pressing ENTER GPSMAP178CManual indd 61 3 19 2004 3 10 31 PM 62 Reference Editing Routes The GPSMAP 178C s route edit mode also allows you to insert a new route point in any route leg using the map cursor To insert a new point between two existing route waypoints 1 Use the ARROW KEYPAD to select the leg in which you want to insert the new waypoint the route line highlights and changes to a dotted line when the leg is selected and press ENTER 2 Move the cursor to the new map position existing waypoint or map item You see ADD below the arrow and the route lines moves with the arrow and press ENTER 3 If you are not inserting an existing point press ENTER t
121. nderij Zanderij Surinam GPSMAP178CManual indd 105 3 19 2004 3 11 07 PM 106 Appendix D Messages Battery Voltage High Please Check Connection Input DC voltage is too high for unit Battery Voltage Low Please Check Connection Input DC voltage is too low for unit Boat is Not Moving Fast Enough to Calibrate Speed wheel is not turning Check for debris or boat speed is too slow Database Error Internal problem with the unit Contact your dealer or Garmin Customer Service pg iv to have the unit serviced Deep Water Alarm Speci ed deep water alarm depth has been detected below transducer Lost Satellite Reception The unit has lost satellite signals Check antenna connections or try moving to a location with a clear view of the sky Memory RAM Failed Unit Needs Repair Internal problem with the unit Contact your dealer or Garmin Customer Service pg iv to have the unit serviced Memory ROM Failed Unit Needs Repair Internal problem with the unit Contact your dealer or Garmin Customer Service pg iv to have the unit serviced No DGPS Position No differential correction data is available or not enough data is available to compute a DGPS position No Tide Stations For That Area There are no tide stations within 100 miles of the speci ed point Try another area Off Course Alarm You have exceeded the speci ed off course distance Processor Failed Unit Needs Repair Internal problem with the u
122. ndow GPSMAP178CManual indd 103 3 19 2004 3 11 06 PM 104 Appendix C Map Datums Adindan Adindan Ethiopia Mali Senegal Sudan Afgooye Afgooye Somalia AIN EL ABD 70 AIN EL ANBD 1970 Bahrain Island Saudi Arabia Anna 1 Ast 65 Anna 1 Astro 65 Cocos I ARC 1950 ARC 1950 Botswana Lesotho Malawi Swaziland Zaire Zambia Zimbabwe ARC 1960 Kenya Tanzania Ascnsn Isld 58 Ascension Island 58 Ascension Island Astro B4 Sorol Sorol Atoll Tern Island Astro Bcn E Astro Beacon E Iwo Jima Astro Dos 71 4 Astro Dos 71 4 St Helena Astr Stn 52 Astronomic Stn 52 Marcus Island Aus Geod 66 Australian Geod 66 Australia Tasmania Island Aus Geod 84 Australian Geod 84 Australia Tasmania Island Austria Austria Bellevue IGN Efate and Erromango Islands Bermuda 1957 Bermuda 1957 Bermuda Islands Bogata Observ Bogata Obsrvatry Colombia Campo Inchspe Campo Inchauspe Argentina Canton Ast 66 Canton Astro 1966 Phoenix Islands Cape Cape South Africa Cape Canavrl Cape Canaveral Florida Bahama Islands Carthage Carthage Tunisia CH 1903 CH 1903 Switzerland Chatham 1971 Chatham 1971 Chatham Island New Zealand Chua Astro Chua Astro Paraguay Corrego Alegr Corrego Alegre Brazil Djakarta Djakarta Batavia Sumatra Island Indonesia Dos 1968 Dos 1968 Gizo Island New Georgia Islands Dutch Dutch Easter
123. ng DSC interface Card interface control for saving waypoints routes and tracks to a data card Map sets up Map Page features zooms and text size See page 25 Hiway sets up Highway Page features See page 43 continued Main Menu Tabs Submenu Tabs Main Menu Page GPSMAP178CManual indd 67 3 19 2004 3 10 35 PM 68 Reference Main Menu GPS Tab Temp sets up and shows the water temperature log Sonar sets up Sonar Page features speeds and calibrations See pages 39 Setup de nes System Units and Time settings Comm interface settings for use with a PC or second device Alarm sets up alarms for anchor drag arrival off course and clock GPS Tab provides a visual reference of satellite acquisition receiver status and accuracy The status information gives you an idea of what the receiver is doing at any given moment The sky view and signal strength bars give you an indication of what satellites are visible to the receiver and whether or not they are being tracked The signal strength is shown on a bar graph for each satellite with the satel lite number below As the receiver locks onto satellites a signal strength bar appears for each satellite in view The progress of satellite acquisition is shown in three stages No signal strength bars the receiver is looking for the satellites indicated Light White signal strength bars the receiver
124. nit Contact your dealer or Garmin Customer Service pg iv to have the unit serviced The GPSMAP 178C uses an on screen pop up message system to alert you to unit operating characteristics Press the ENTER key to acknowledge and return to the page you were viewing Alarm Clock The alarm clock has sounded Alarm Voltage Set Too High Voltage range must be between 10 0 and 35 0 volts for the GPSMAP 178C Alarm Voltage Set Too Low Voltage range must be between 10 0 and 35 0 volts for the GPSMAP 178C Anchor Drag Alarm You have drifted out of the speci ed distance range Antenna Input Shorted To Ground Check antenna wiring connections or antenna replacement Approaching Waypoint You are a speci ed alarm distance from a destination waypoint Arrival At Waypoint You have arrived at the destination waypoint Basemap Failed Unit Needs Repair Internal problem with the unit Contact your dealer or Garmin Customer Service pg iv to have the unit serviced Battery Alarm Speci ed amount of input voltage has been detected GPSMAP178CManual indd 106 3 19 2004 3 11 08 PM 107 Appendix D Messages Proximity Alarm List is Full You have used all ten proximity waypoints Proximity Alarm Waypoint You have entered the alarm radius for the proximity waypoint indicated Proximity Overlaps Another Proximity Waypoint The alarm radius speci ed overlaps the area speci ed for another proximity waypoint Adj
125. o con rm the new waypoint 4 Press QUIT to return to the Route Review page Add Before Insert a waypoint into the route points list To insert a point into the route 1 From either the Route Review or Active Route pages use the ARROW KEYPAD to highlight the point you wish to insert the new point before and press MENU 2 Highlight Add Before and press ENTER 3 From the Find menu highlight Waypoints and press ENTER You may also choose from other points such as Cities Tide Stations etc from this list Select the point you want and press ENTER twice See page 51 for searching for waypoints by name Remove Remove a point waypoint or map item from a route This option is available from both the Route Review and Active Route Pages To remove a point from a route 1 From either the Route Review or Active Route pages use the ARROW KEYPAD to highlight the point to remove and press MENU 2 Highlight Remove and press ENTER Highlight the route leg on which you wish to insert a waypoint and press ENTER Drag the route leg to an existing waypoint map item or an open spot on the map shown to create a new route point GPSMAP178CManual indd 62 3 19 2004 3 10 32 PM 63 Reference Editing Routes Trip Planning The Route Review and Active Route pages also display trip planning information for each leg or the entire route Available information includes Course E
126. o determine the type of bottom structure that is displayed on the chart By determining the hardness of the structure you can make a better informed decision on the type of structure Structure is hard probably a rock or stump Structure is soft probably a mud pile Example 4 Whiteline Turned Off Hard Bottom Whiteline Soft Bottom GPSMAP178CManual indd 114 3 19 2004 3 11 14 PM 115 Appendix G Understanding the Graph Thermoclines One of the unique features offered by Garmin is See Thru technology See Thru technology allows the GPSMAP 178C to see through thermoclines and helps locate sh where they live and sh love thermoclines A rough de nition of a thermocline is a break in water where the water temperature changes faster than the water above it Thermoclines are shown as the weakest colors see pg 14 Thermocline GPSMAP178CManual indd 115 3 19 2004 3 11 14 PM 116 Appendix H Speci cations Physical Speci cations Size 4 9 H x 6 3 W x 3 7 D 122 5mm x 157 5mm x 92 5mm Weight 1 0 lb 3 5oz 553Kg Display 3 2 W x 3 2 H 81 28mm CSTN Color Super Twist Nematic with adjustable CCFL Cold Cathode Fluorescent Lamp backlighting 320x320 pixels Case Fully gasketed high impact plastic alloy waterproof to IEC 60529 IPX 7 Temp Range 5 F to 158 F 15 C to 55 C Performance Receiver Differential ready 12 parallel channel WAAS capable receiver
127. o the settings and features most commonly used on the Sonar Page There are 10 main adjustment options available Range Zoom View Span Gain Target Level Whiteline Frequency Depth Line Noise Reject and Scroll The currently selected option appears in the upper left of the display with up and down arrows on either side of the option name To select an adjustment option from the Sonar Page 1 Press the ARROW KEYPAD LEFT RIGHT to scroll through the options in the upper left of the display then press ENTER to access the desired option s adjustment window OR 1 Press MENU highlight Adjustments and press ENTER A list of all options and their current set tings appears with the selected option highlighted Press UP DOWN on the ARROW KEYPAD to select the desired option and press ENTER to access the adjustment window To easily exit any of the adjustment options press the QUIT key To change an Adjustment Menu setting 1 Select an adjustment option to change using one of the two methods described above The adjust ment window automatically times out and disappear when idle for 20 seconds 2 Press the ARROW KEYPAD UP DOWN to place the pointer or setting bar at the desired setting range or percentage Off 1 100 3 Press ENTER or QUIT to exit the adjustment window or press LEFT RIGHT on the ARROW KEYPAD to view another adjustment window To change a setting back to Normal or Auto 1 On the adjustment
128. o use tab format The Main Menu page is avail able from any page in the GPSMAP 178C s system and is accessed through the MENU key See pages 2 3 for additional instructions changing settings and entering data To access the Main Menu Page 1 Press MENU twice The 16 Menu tabs are divided into categories by function To select a Menu tab from the Main Menu page 1 Move the ARROW KEYPAD UP or DOWN to highlight the tab you want to view The information for the highlighted tab automatically appears to the right If you want to highlight any of the tab items press to the RIGHT on the ARROW KEYPAD then move UP or DOWN to select individual items 2 Press either MENU for additional submenu options or press ENTER MARK to make changes to the highlighted item Press LEFT on the ARROW KEYPAD to get back to the Menu tab list Press QUIT to return to the Main Menu page The Main Menu tabs are GPS shows satellite status accuracy initialize position Tide shows 24 hour tide chart with levels and times Trip provides trip speeds odometers averages and trip timers Celes shows sun moon time cycles and positions Points allows you to create edit or delete waypoints See page 44 Route allows you to create edit activate or delete routes See page 57 Track lets you record a track de ne how it is recorded and displayed DSC allows you to control the Digital Selective Calli
129. of all options and their current set tings appears with the selected option highlighted Press UP DOWN on the ARROW KEYPAD to select the desired option and press ENTER to access the adjustment window To easily exit any of the adjustment options press the QUIT key To change an Adjustment Menu setting 1 Select an adjustment option to change using one of the two methods described above The adjust ment window automatically times out and disappear when idle for 20 seconds 2 Press the ARROW KEYPAD UP DOWN to place the pointer or setting bar at the desired setting range or percentage Off 1 100 continued Sonar Page Press MENU and highlight Adjust ments to see a list of all options and their current settings The Sonar Page is The top left of the scre elds allows direct acc Page The middle of th beneath your boat Ite right side of the screen the screen is an adjusta the unit does not detec appears across the Son right side The sonar display of the sonar bottom lo options see pg 34 F Dual 2X on one half The current display m Sonar returns show greens weaker and b to view the actual sona appear as green When of the sh symbols an beam 200kHz are so 50kHz are hollow o Actual sh returns may tion and or other cond GPSMAP178CManual indd 33 3 19 2004 3 10 12 PM 34 Reference Sonar Page Adjustment Menu 3 Press ENTER or QUIT to exit the
130. oing to a Destination Going to a Destination Using the NAV key the GPSMAP 178C provides three ways to navigate to a destination Go To Point Follow Route and Follow Track TracBack Once you are actively navigating you see a straight line that always runs from your current location to the destination on the Map Page The easiest method for selecting a destination is the Go To function which lets you select a destination point then quickly sets a direct course from your present position If you highlight a point on a list or the map and press NAV Go To lt point name gt appears in addition to Go To Point The Go To function can be accessed from any list of points or graphically from the map display To activate a Go To from a point list 1 Press the NAV key 2 Use the ARROW KEYPAD to highlight Go To Point and press ENTER 3 From the Find menu highlight Waypoints and press ENTER You may also choose to go to other points such as Cities Tide Stations etc from this list 4 Select a waypoint from the By Name or Nearest list then press ENTER To display the Waypoint Review page for the selected waypoint 5 With the Go To button highlighted press ENTER to begin navigation To stop navigation 1 Press the NAV key Use the ARROW KEYPAD to highlight Stop Navigation and press ENTER Selecting a Go To Graphically A graphical Go To may b
131. oint highlights when the cursor is moved over it Waypoint numbering starts with 001 and continually counts up even if the waypoint name has been deleted GPSMAP178CManual indd 13 3 19 2004 3 10 00 PM 14 Getting Started Map Sonar Split amp Sonar Pages Map Sonar Split Page The Map Sonar Split Page combines the Map Page on the left half with the Sonar Page on the right by default You may adjust the size of the split pg 32 Press PAGE key to proceed to the Sonar Page Sonar Page The Sonar Page is where your GPSMAP 178C Sounder becomes a powerful sh nder The top left of the screen contains data elds while the Adjustment Bar above the data elds allows direct access to the settings most commonly changed while using the Sonar Page The middle of the page contains a right to left moving sonar image of the water beneath your boat Items appear as they pass under your transducer Those items on the right side of the screen are closer to you than those on the left Along the right side of the screen is an adjustable scale which re ects the depth of the area being displayed If the unit does not detect a transducer attached to the unit a Sonar Turned Off message appears across the Sonar Page You may also show a sonar asher and color bar on the right side The sonar display may also be set to show a split screen view of a zoomed portion of the sonar bottom lock display scaled from the bottom up
132. oint using the default three digit name and symbol Selecting Map Scales The map display has 28 available range scales from 20 ft to 800 mi 5 m to 1200 km The map scale is controlled by the IN and OUT keys with the current scale displayed at the bottom right of the data window To select a map scale 1 Press the OUT key to zoom out and the IN key to zoom in The scale value represents the distance from one end of the scale bar to the other The GPSMAP 178C s system has a built in worldwide database to 20 mi with more detailed coverage available through the use of the optional BlueChart or MapSource data The GPSMAP 178C displays cartography as long as there is chart information available for the range you ve selected Map coverage conforms to the following conditions When the selected zoom range is covered by either the internal database BlueChart or MapSource data cartography is displayed When the selected zoom range is covered by both the internal database and BlueChart MapSource data cartography is displayed using the data with the best resolution When the selected zoom range exceeds the resolution of the data in use overzoom cartography is displayed and an overzoom warning appears below the scale eld Using Built In Basemap Using BlueChart MapSource Data Overzoom no additional data Creating New Map Waypoint GPSMAP178CManual indd 24 3 19 2004 3 10 06 PM 25 Reference Ma
133. on formats described on page 84 User Mag Var allows you to specify the magnetic variation at your current position and provides magnetic north heading references based upon the variation you enter To enter a user de ned magnetic variation 1 With the Heading eld set to User Mag Var highlight the heading reference eld immediately to the right and press ENTER 2 Use the ARROW KEYPAD to enter the magnetic variation at your current position and press ENTER Distance Speed and Elevation lets you select the desired units of measure for distance speed and elevation readouts in Nautical nm kt ft Nautical nm kt m Statute mi mh ft or Metric km kh m terms Depth lets you select the desired units of measure for depth in Feet ft Fathoms fa or Meters m Temperature lets you select the desired units of measure for temperature in Fahrenheit F or Celsius C WARNING If User Mag Var is selected you must periodically update the magnetic variation as your position changes Using this setting the unit does not automati cally calculate and update the magnetic variation at your present position Failure to update this setting may result in substantial differences between the information displayed on your unit and external references such as a magnetic compass The Units tab settings affect how navigation information is displayed on the GPSM
134. onal Inc 1200 East 151st Street Olathe Kansas 66062 U S A Tel 913 397 8200 Fax 913 397 8282 Garmin Europe Ltd Unit 5 The Quadrangle Abbey Park Industrial Estate Romsey SO51 9DL U K Tel 44 1794 519944 Fax 44 1794 519222 Garmin Corporation No 68 Jangshu 2nd Road Shijr Taipei County Taiwan Tel 886 2 2642 9199 Fax 886 2 2642 9099 GPSMAP178C Cover indd 2 6 9 2004 10 01 19 AM i Introduction Preface Registration Software License Agreement Preface Congratulations on choosing one of the most advanced marine navigation systems available The Garmin GPSMAP 178C Sounder utilizes the proven performance of Garmin GPS and full featured map ping to create an unsurpassed marine navigation chartplotter To get the most out of your new navigation system take the time to go through this owner s manual and learn the operating procedures for your unit This manual is broken down into two parts for your convenience Part One introduces you to the GPSMAP 178C Sounder and provides a Getting Started tour so that you may become more familiar with the unit This section provides you with a basic knowledge necessary to use the unit Part Two is divided into sections that provide detailed references to the advanced features and opera tions of the GPSMAP 178C Sounder This allows you to concentrate on a speci c topic quickly and look up detailed information about the GPSMAP 178C Sounder Customer Service Product Regist
135. optimal viewing GPSMAP178CManual indd 94 3 19 2004 3 10 55 PM 95 Appendix A Unit Installation Flush Mounting the GPSMAP 178C External Antenna Unit The GPSMAP 178C External Antenna only can be ush mounted on a at panel When ush mounting the GPSMAP 178C be sure to choose an appropriately sized location for the unit Check that all cables reach the unit mounting location before beginning installation Use the Flush Mount Template provided in the box to determine a location Always wear safety goggles ear protection and a dust mask when drilling cutting or sanding To ush mount the GPSMAP 178C External Antenna ONLY Included Mounting Hardware 4 3mm Studs 4 Flat Washers 8 3mm Hex Nuts Tools not included Center Punch Drill 1 8 3mm Drill Bit 3 8 6mm Drill Bit Jig Saw 1 16 2mm Allen Wrench 9 35 7mm Wrench 1 Trim the Flush Mount Template and tape in the desired location 2 Using a Center Punch indent the center of each Mounting Hole location 3 Using a 1 8 3mm drill bit drill the four Mounting Holes 4 Using a 3 8 6mm drill bit drill a hole for a location to begin cutting the mounting surface 5 Using the Jig Saw cut the mounting surface along the inside of the dashed line indicated on the template Be very careful when cutting this hole there is only a small amount of clear ance between the unit and the Mounting Holes It may be prudent to cut s
136. or details Once you are back on the Route Point List the next point in the route is automatically highlighted This allows you to review each point on the route by repeatedly pressing ENTER Route Review Options Menu By pressing MENU on the Route Review page the following options are available Edit on Map Add Before Remove and Trip Planning Route Review Options Menu Route Points Data Fields Route Name Data Totals GPSMAP178CManual indd 60 3 19 2004 3 10 30 PM 61 Reference Editing Routes Edit on Map review and modify the route displayed for each point waypoint or map item on a map page You may also use the cursor to insert a new route point on a route leg review the waypoint or map item To edit a route on the map 1 From the Route Review page press MENU highlight Edit on Map and press ENTER To review a route point 1 Highlight the point and press ENTER The Review page appears Highlight Next and press ENTER to return to the map with the next route point highlighted To edit a route point 1 Use the ARROW KEYPAD to highlight the desired route waypoint and press MENU A pop up menu of editing choices appears with the following options Edit as Text return to the Route Review page Remove Move user waypoints only and Add To remove a route waypoint 1 Highlight the Remove option and press ENTER To move a route waypoint 1 Highlight the Move option a
137. ow gone through the basic operation of the Garmin GPSMAP 178C Sounder Your new digital chartplotter is a powerful tool with many advanced features not covered in the Getting Started tour For detailed instructions on using these features or performing a speci c task please refer to the Quick Reference Guide or the appropriate reference section of this manual The unit is still in Simulator mode for practice but automatically returns to it s Normal operation mode when you shut it off and turn it back on To turn the GPSMAP 178C Sounder off 1 Press and hold the POWER key for about 2 seconds until the screen is blank 2 When the screen is blank release the POWER key The next section of the manual describes the pages and functions of the GPSMAP 178C Sounder in detail If you are unable to locate a speci c option or function please refer to the Index GPSMAP178CManual indd 21 3 19 2004 3 10 05 PM 22 Reference Map Page Map Page The GPSMAP 178C s Map Page provides a comprehensive display of electronic cartography plotting and navigational data When using the unit with the optional BlueChart data or MapSource software the map display shows your boat on a digital chart complete with geographic names map items navaids and a host of other chart features It also plots your track and displays any routes and waypoints you create An on screen cursor lets you pan and scroll to other map areas determine the distance
138. ow more elds with a smaller number size or less elds with a larger number size This setting is available on all of the Main Pages except the Active Route Page To set up the page layout 1 Press the MENU key to display the Page options 2 Highlight Set Up Page Layout and press ENTER 3 The current setting displays press ENTER to change Use the ARROW KEYPAD to highlight the desired setting then press ENTER 4 Press QUIT when nished Active Route Page Press PAGE to see the last page appearing in the main sequence which is the Active Route Page Whenever you have activated a route or Follow Track this page lists the names of the route points along with useful data for each point As you navigate the route the information automatically updates to indicate the next point along the route For more detailed information on the Active Route Page see page 64 You may change the size of the data elds Current waypoint Active Route Page GPSMAP178CManual indd 19 3 19 2004 3 10 04 PM 20 Getting Started Main Menu Page Deleting Waypoints Main Menu Page As you ve seen the primary pages provide map sonar and navigation information The tour s last page is the Main Menu page which allows access to the GPSMAP 178C Sounder s waypoint route and planning functions as well as various operational and navigation setup features and celestial and tide data The Main Menu is availab
139. ower on If the unit fails to power on verify that the wiring adapter is seated properly in the back of the unit the Red and Black wires are connected to the correct polarity and that the fuse is installed and not blown If the unit is connected to a power supply that exceeds 35 VDC a Battery Voltage High warning is displayed and the unit turns off Since water is necessary to carry the sounder s sonar signal the transducer must be in the water to work properly It is not possible to get a depth distance reading when out of the water As the unit powers on it should immediately start showing the bottom Verify that the unit is not in the simulator mode If the unit is in the simulator mode make sure that the transducer is connected to the wiring harness To test the transducer installation gradually increase the boat speed while checking the unit opera tion If the unit displays intermittently or fails to display verify that the transducer is aligned parallel with the bottom and if necessary adjust the transducer height until the unit operates correctly It may be necessary to make several adjustments to ensure proper operation throughout the speed range NOTE When adjusting the depth of the transducer make the adjustments in small increments Placing the transducer too deep can adversely affect the boat s performance and put the transducer at greater risk of striking underwater objects GPSMAP178CManual indd 100 3 19 2004 3
140. owner s manual GPSMAP 178C GPSMAP178C Cover indd 1 6 9 2004 10 00 00 AM Except as expressly provided herein no part of this manual may be reproduced copied transmitted disseminated downloaded or stored in any storage medium for any purpose without the express prior written consent of Garmin Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to print one copy of this manual or of any revision hereto provided that such electronic or printed copy of this manual or revision must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited Information in this document is subject to change without notice Garmin reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements Web site address www garmin com GARMIN AutoLocate GPSMAP See Thru DCG Depth Control Gain MapSource BlueChart and TracBack are registered trademarks of Garmin Ltd or its subsidiaries and may not be used without the express permission of Garmin March 2004 Part Number 190 00321 02 Rev A Printed in Taiwan Copyright 2004 Garmin Ltd or its subsidiaries All Rights Reserved Garmin Internati
141. p Page Options Map Page Options Many features of the GPSMAP 178C are menu driven Each of the main pages have an options menu allowing you to custom tailor the corresponding page to your preferences and or select special features that speci cally relate to that page The data window located at the top of the main pages provides a user selectable layout of various types of useful data Each data eld may be con gured to display any one of several data options The data window layout may also be changed to display addi tional data elds and change the actual size of the data displayed The GPSMAP 178C s Map Page provides access to functions and features relating to the Map Page and the layout options To display the Map Page options 1 Press MENU To select a menu option 1 Use the ARROW KEYPAD to highlight the desired option and press ENTER The available options are Full Screen Map Show Data Measure Distance Set Up Map Set Up Page Layout Change Numbers and Turn Declutter On Off Following are details on using each of these options Full Screen Map Show Data toggles between a Map Page without or with data elds on the map display The unit defaults back to Show Data the next time it is powered on To maximize the map show data elds 1 Highlight the Full Screen Map option and press ENTER The Map Page is now maximized with no data elds 2 To show the data elds again pre
142. p items and create on screen waypoints Move the cursor to highlight the TOUR3 waypoint just use the ARROW KEYPAD to move the cursor as close as possible to the waypoint To move the cursor in small increments try a series of short key presses Once the cursor is over the TOUR3 waypoint you ll notice that the waypoint symbol and name are highlighted The data eld at the top of the map displays the waypoint name the range and bearing from your present position and the coordinates for the waypoint To review the waypoint page for a selected waypoint 1 With the waypoint highlighted press ENTER 2 To return to the Map Page press ENTER again or press QUIT The cursor can also be used to create new waypoints right from the map display To create a new waypoint using the cursor 1 Use the ARROW KEYPAD to move the cursor as close as possible to the following position N35 02 914 W 076 26 152 Use the data window to verify the cursor position 2 Press and release the ENTER MARK key to capture the cursor position Do not hold the button down as doing so marks your present position not the map position 3 Use the ARROW KEYPAD to highlight the waypoint symbol eld to the left of the waypoint name number 4 Press ENTER to access the symbol page 5 Use the ARROW KEYPAD to select the Shipwreck symbol and press ENTER to con rm 6 Highlight OK and press ENTER again to nish The wayp
143. press MENU twice from any screen then highlight the Sonar tab using the ARROW KEYPAD Press RIGHT on the ARROW KEYPAD to access the selection elds Each time the Setup Menu is accessed the unit returns to the last edited selection eld To change a setting on the Sonar tab 1 Using the ARROW KEYPAD highlight the desired eld and press ENTER and the available options appears 2 Highlight the desired setting and press ENTER 3 Press QUIT to return to the Sonar Page or previous page Sonar Tab Options Fish Symbols allows you to determine how the graph displays underwater targets and back ground information If Fish Symbols are set to Off the unit displays all of the available informa tion about the underwater environment If a sh symbol is selected the graph displays only the information related to that symbol Actual sh returns may not always appear as perfect arches like in simulator mode due to the speed sh orientation and or other conditions Water Type since sound waves travel through Fresh and Salt water at different rates it is necessary to select the Water Type to ensure accurate readings on the unit Depth Number controls the ef ciency of the digital depth update rate Fast Update updates more quickly and is recommended for low noise deeper water gt 50 ft Auto is best for shallow water or high noise areas has a slower screen update and is bes
144. r area with more detail Zooms in PAGE Key The PAGE key selects the main pages in sequence and returns display from a submenu page QUIT Key The QUIT key returns the display to the previous page and when entering data it restores the previous value cancels data entry ARROW KEYPAD The ARROW KEYPAD is used to select Highlight menu options and enter data It also controls cursor movement on the Map Page ENTER MARK Key The ENTER MARK key selects a highlighted menu option When entering data it allows you to initiate entry and then to accept the selected value s It also marks the current location as a waypoint when pressed and held for more than one second MENU Key The MENU key displays a menu of available options for the current page Press twice or press and hold for more than one second to display the Main Menu NAV MOB Key The NAV key displays the Go To and Follow navigation menu MOB Man OverBoard actives the Man OverBoard navigation feature when pressed and held for more than one second FIND Key The FIND key activates the nd function to search for nearby items and user waypoints POWER BACKLIGHT Key The POWER BACKLIGHT key turns on off the unit and and adjusts the display illumination contrast Multiple presses toggle the unit s backlight between maximum user set and minimum brightness levels Arrow Keypad Power Key IN OUT NAV MOB PAGE QUIT MENU ENTER MARK FIND Always pr
145. ration Help us better support you by completing our on line registration today Have the serial number of your GPSMAP 178C handy and connect to our web site www garmin com Look for the Product Registration link on the Home page Also be sure to record your serial number in the area provided on page iv of this manual NOTE If you have previously registered a Garmin product purchase we invite you to re register using our NEW on line system Many services provided by our new product registration system are now being automated and re registering your purchase ensures you the best possible support from Garmin Software License Agreement BY USING THE GPSMAP 178C YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT PLEASE READ THIS AGREEMENT CARE FULLY Garmin grants you a limited license to use the software embedded in this device the Software in binary executable form in the normal operation of the product Title ownership rights and intellectual property rights in and to the Software remain in Garmin You acknowledge that the Software is the property of Garmin and is protected under the United States of America copyright laws and international copyright treaties You further acknowledge that the structure organization and code of the Software are valuable trade secrets of Garmin and that the Software in source code form remains a valuable trade secret of Garmin You agree not to decompil
146. reception is not available in your area To disable enable WAAS capability 1 From the GPS tab press MENU then use the ARROW KEYPAD to highlight WAAS Off or WAAS On and press ENTER Receiver Status and Accuracy Receiver status is indicated at the top eld of the page with the current Accuracy and Dilution Of Precision DOP to the right of the sky view Accuracy uses DOP and other factors to calculate horizon tal position accuracy in feet or meters Highlight WAAS Off and press ENTER to disable the WAAS capabilities GPSMAP178CManual indd 69 3 19 2004 3 10 37 PM 70 Reference Main Menu GPS Tab The status eld shows one of the following conditions Looking For Satellites the receiver is looking for any satellites AutoLocate the receiver is looking for any satellite whose almanac has been collected This process can take up to ve minutes Acquiring Satellites the receiver is looking for and collecting data from satellites visible at its last known or initialized position but has not collected enough data to calculate a x 2D at least three satellites with good geometry have been acquired and a 2 dimensional position x latitude and longitude is being calculated 2D Differential appears when you are receiving DGPS corrections in 2D mode and a D shows on the strength bar of satellites being corrected 3D at least four satellites wi
147. rectly from the map display To select an on screen waypoint or map item with the cursor 1 Use the ARROW KEYPAD to move the cursor to the desired waypoint or map item if there are several waypoints grouped closely together zoom in closer for a better view 2 When a waypoint or map item is selected it becomes highlighted on screen with the name and position displayed Press ENTER to show details of the map item When using BlueChart or MapSource data additional information tabs appears Use the ARROW KEYPAD to highlight the individual tabs to display the information and additional options Move the cursor over an item on the map to highlight it Pressing ENTER MARK while highlighting a map item brings up additional details and options Additional information tabs Option buttons GPSMAP178CManual indd 23 3 19 2004 3 10 06 PM 24 Reference Map Page Cursor and Zooming To eliminate the cursor and re center your position on screen 1 Press the QUIT key The cursor may also be used to create new waypoints directly from the map To create a waypoint with the cursor 1 Use the ARROW KEYPAD to move the cursor to the desired map position 2 Press the ENTER MARK key and the New Map Waypoint window appears If the cursor is on a map item you get a new window with details about the item when ENTER MARK is pressed Press ENTER again on the highlighted Create Wpt option 3 Press ENTER to con rm the new wayp
148. ress ENTER when done 7 When done use the ARROW KEYPAD to highlight the OK prompt and press ENTER to save the waypoint into memory Creating Waypoints Graphically Waypoints may also be quickly created with the Map Page cursor which allows you to point and shoot at any map position or map feature to create a new waypoint When you move the cursor over a map item you see a highlighted description of that item The GPSMAP 178C uses the map item text shown on the cartography as the default name and symbol for the new waypoint To create a new waypoint on an open map location 1 Use the ARROW KEYPAD to move the cursor to the desired map position 2 Press and quickly release the ENTER MARK key to capture the cursor position press and hold ENTER MARK to mark your present location not the map cursor s position 3 The New Map Waypoint page appears To accept the waypoint with the default name and symbol press ENTER To change the name symbol position or add a comment depth or water temp highlight the appropriate eld and press ENTER Make your changes and press ENTER when done After enter ing and con rming your changes highlight OK and press ENTER To create a new waypoint from a map feature 1 Use the ARROW KEYPAD to move the cursor and highlight the desired map feature 2 Press ENTER MARK to capture the cursor position An Information page for that map feature appears Use the ARROW KEYPAD to highlig
149. rmation window that shows the waypoint name position and distance and bearing from your current position 2 To move the waypoint press ENTER A MOVE label now appears under the cursor arrow It may be necessary to use the IN and OUT keys to zoom the map 3 Use the ARROW KEYPAD to move the waypoint to a new position As you move the cursor around the map display the information window at the top changes to show the distance bearing and position of the map cursor in relation to the waypoint s original position and a description of where the cursor is on the map If you wish to stop the move process press QUIT 4 With the pointer at the desired position press ENTER To return to the Waypoint Edit Waypoint Review page press QUIT On the Show Map map display an additional option is available by pressing MENU Point to on Map Page returns to the highlighted waypoint on the main Map Page exits the Waypoint Review Waypoint Edit Page Symbol Name Depth Coordinates Waypoint Edit Page Comment Water Temperature GPSMAP178CManual indd 49 3 19 2004 3 10 22 PM 50 Reference Waypoint Lists Main Menu Points Tab Waypoint Lists The GPSMAP 178C s Main Menu Page features two waypoint submenu tabs User and Proxim ity that let you manage a large number of waypoints quickly and ef ciently The submenu tabs also provide a continuously updated proximity waypoint alarm function t
150. rn DSC off on the remaining Garmin chartplotters that support DSC Adding a Directory Entry DSC Setup Simulate options only appear while in Simulator mode GPSMAP178CManual indd 81 3 19 2004 3 10 45 PM 82 Main Menu DSC Card Tabs Reference Card Tab A user also has the ability to simulate a Distress Call or a Position Report on this page This is help ful for practice before connecting to the real system The Distress Call simulator also helps to check if alarms are working properly To run a simulation 1 Place the chartplotter into simulation see pg 7 2 From the Main Menu select the DSC tab then highlight the Setup tab 3 Highlight which simulation you wish to run and press ENTER Using the NAV Key The receiver of a Distress Call or Position Report can quickly navigate to the caller using the NAV button Once the call is logged press the NAV button and select to Go To the MMSI number or the Name of the caller Card Tab interface control for saving waypoints routes and tracks to a data card When data is saved to a data card it may be exchanged with other compatible units and Garmin s MapSource PC program To transfer data to from a data card 1 Insert the data card If there is already user data on the card highlight User Card and press ENTER From the Card tab select the checkbox next to each type of item you want to transfer You may also press MENU and choose to Selec
151. rrow LEFT or RIGHT until the desired vertical width line shows then press ENTER Map Sonar Split Page You may resize the split to the left or right GPSMAP178CManual indd 32 3 19 2004 3 10 11 PM 33 Reference Sonar Page Sonar Page The Sonar Page is where your GPSMAP 178C Sounder becomes a powerful sh nder Fish are displayed as colored arches or as sh icons in three different sizes Thermoclines are shown as shades of blue The sonar display may also be set to show a split screen view of a zoomed portion of the sonar bottom lock display scaled from the bottom up or a combination of these options see pg 34 For example you may choose to show dual frequency at a 2X zoom Dual 2X on one half and normal range dual frequency Dual returns on the other half The current display mode is displayed at the bottom of each sonar display For more information on understanding sonar and the display see page 14 and Appendix G Using the Adjustment Menu The Adjustment Menu allows direct access to the settings and features most commonly used on the Sonar Page The currently selected option appears in the upper left of the display To select an adjustment option from the Sonar Page 1 Press the ARROW KEYPAD LEFT RIGHT to scroll through the options in the upper left of the display then press ENTER to access the desired option s adjustment window OR 1 Press MENU highlight Adjustments and press ENTER A list
152. s range you see a message None Found Use the Nearest To Other Find option and select a location closer to a tide station To select a tide station from the map 1 Press FIND then MENU when the search results appear 2 Highlight Nearest To Other and press ENTER 3 Select a position on the map and press ENTER 4 A list appears showing up to nine of the nearest tide stations Highlight the desired station and press ENTER twice If the None Found message appears repeat steps 1 4 until you nd a station You may also change the date to see tide charts for other days To change the date for the tide chart 1 Using the ARROW KEYPAD highlight the On eld and press ENTER 2 Enter the desired date and press ENTER To use the current date 1 Press MENU then highlight Use Today s Date and press ENTER You may move the time bar on the tide chart in 5 minute increments to show tide heights at vari ous times on the chart To see tide heights at various times on the chart 1 Press MENU then highlight Move Cursor and press ENTER Or highlight the chart eld 2 Press LEFT or RIGHT on the ARROW KEYPAD to change the time and day Press QUIT when done or press MENU then highlight Stop Moving Cursor and press ENTER Tide Station List Menu Options Press MENU on the Tide Station list to access additional search options The Nearest to Next and Nearest to Desti
153. s with the waypoint s coordinates default three digit name and pointer depth automatically lled in 4 To change the name symbol or depth highlight the appropriate eld and press ENTER Make your changes and press ENTER when done 5 When done move the eld highlight back to the OK prompt and press ENTER 6 To return to the standard Sonar Page press QUIT or press MENU then highlight Hide Pointer and press ENTER Show Hide Numbers toggles showing hiding the data elds on the sonar display Size Split enables width adjustment of the Sonar Page split screen This option is only available when a split screen zoom scale is selected You may adjust the size of the split window anywhere from 1 4 to 3 4 width of the right half of the Sonar Page To resize the Sonar Page split screen 1 From the Sonar Page split screen press MENU 2 Using the ARROW KEYPAD highlight Size Split and press ENTER GPSMAP178CManual indd 37 3 19 2004 3 10 14 PM 38 Reference Sonar Page Options 3 Move the horizontal double arrow LEFT or RIGHT using the ARROW KEYPAD until the desired vertical width line shows then press ENTER 4 If you wish to cancel this operation press QUIT or press MENU highlight Cancel Resize and press ENTER Set Up Sonar jumps to the Sonar tab of the Main Menu which contains sonar con gura tion settings that should not require frequent change You may also
154. se Line Track Saved Tracks Track Log Other Accuracy Circle Lat Lon Grid Map Outlines To change a map setup feature 1 From the Map Page menu highlight Set Up Map and press ENTER 2 Move LEFT or RIGHT on the ARROW KEYPAD to highlight the desired tab then UP or DOWN on the ARROW KEYPAD to move the highlight to the setting you want to change and press ENTER 3 Move UP or DOWN on the ARROW KEYPAD to highlight to the desired setting and press ENTER To exit press QUIT Distance and Bearing Map Cursor Full screen map shown Cursor Coordinates Main Menu Map Con guration Tab GPSMAP178CManual indd 26 3 19 2004 3 10 07 PM 27 Map Page Options Reference General Tab Detail Most More Normal Less Least controls how much map detail displays Those features which have a speci ed scale or turned Off are unaffected by this setting Orientation North Up xes the top of the map display to a north heading Track Up Below xes the top of the map display to the current track heading and centers your position on the lower portion of the screen Set to Off for constant Track Up The numeric value is the range the unit switches to North Up when zooming out Course Up xes the map so the direction of navigation is always up and turns the navigation leg line vertical on the screen AutoZoom On Off when On the map automatically adjusts the map scale to a lower sca
155. select from the Find list and press ENTER The location the unit is using appears in the At eld The timetables displayed is based upon your current time zone You may change your time zone to view times from another zone Keep in mind this changes the time settings for the entire unit see page 77 To change the time or date 1 From the Celestial tab use the ARROW KEYPAD to highlight the date or time eld and press ENTER 2 Enter a new date or time and press ENTER 3 To return to the current date and time press MENU use the ARROW KEYPAD to highlight Use Current Date and Time and press ENTER To change the skyview orientation 1 From the Celestial tab press MENU then use the ARROW KEYPAD to highlight North Up or Track Up and press ENTER Main Menu Trip Tab Celestial Tab Main Menu Celestial Tab Main Menu Trip Tab Date Time Position Moon Phase Sun Position Horizon 0 20 45 Overhead 90 Skyview Window Sun Moon Event Times GPSMAP178CManual indd 74 3 19 2004 3 10 40 PM 75 Reference Main Menu Active Track Tab Points Tab contains the User and Proximity waypoint lists See page 50 Route Tab contains a list of available routes See page 59 Track Tab lets you specify whether or not to record a track log an electronic breadcrumb trail recording of your path de ne how it is recorded or save track log data
156. ss MENU highlight Show Data and press ENTER Map Page Options GPSMAP178CManual indd 25 3 19 2004 3 10 07 PM 26 Reference Map Page Options Measure Distance allows you to measure the bearing and distance between any two points on the map display To measure the Bearing distance between two points 1 Highlight the Measure Distance option and press ENTER An on screen pointer appears on the map display at your present position with ENT REF below it 2 Move the cursor to the desired reference point the point that you want to measure from and press ENTER 3 Move the cursor to the point that you want to measure to The bearing and distance from the refer ence point and cursor coordinates is displayed in the data window at the top of the display Press the QUIT key to nish Set Up Map allows you to con gure the map display to your preferences including map detail map orientation automatic zoom and various map items and points The map set up option uses a le tab feature making it easier to organize the various settings for ease of use The following table lists the le tabs and the settings available under each tab General Detail Orientation AutoZoom Color Mode Source Basemap Data Card Maps Waypoints Waypoints Active Route Points Spot Soundings Tide Stations Services Navaids Symbol Set Symbol Size Text Size Light Sectors Nav Line Heading Line Bearing Line Cour
157. t Save and press ENTER 3 On the Save Back Through window highlight the desired time date or Entire Log and press ENTER 4 Next the track begins saving and then display the Saved Track window when done The default name distance and number of points 700 maximum are displayed To change the name of the saved track highlight the name eld and press ENTER make your changes and press ENTER again To choose a color that is used to display the saved track line highlight the eld and press ENTER choose a Color and press ENTER again To display the track on the Map and Highway pages highlight the check box to the left of Show on Map and Highway and press ENTER To view the track on the map highlight Review on Map and press ENTER Press QUIT to exit the Track Map window 5 Highlight OK and press ENTER to save the track To activate a TracBack using the NAV key 1 Press the NAV key then highlight the Follow Track option and press ENTER 2 Highlight the track you wish to follow and press ENTER 3 Choose either Original which navigates you from the start to the end of your trip or Reverse which navigates you from the end to the start of your trip and press ENTER Once a TracBack has been activated the GPSMAP 178C takes the track log currently stored in memory and divides it into segments called legs Up to 50 temporary turns BEGIN TURN 1 TU
158. t All or Clear All 2 Highlight Save To Card and press ENTER to save the selected items to the data card 3 If transferring data from the card to the unit highlight Merge From Card and press ENTER to combine the selected items with those of your GPS highlight Replace From Card and press ENTER to overwrite all selected items on your GPS 4 A Transfer Complete message appears once the data has been transferred Press ENTER GPSMAP178CManual indd 82 3 19 2004 3 10 46 PM 83 Reference Map Tab contains setup options for the Map Page See page 25 Hiway Tab contains setup options for the Highway Page See page 43 Temp Temperature Tab displays the water temperature log if equipped with a temperature transducer sensor The chart reads from right to left so that the most recent temperature measured is displayed on the far right side of the chart The dotted lines within the chart indicate intervals in the temperature scale and the duration of time The following settings are available Temperature Scale sets the temperature range in degrees for displaying the log Select Auto to have the unit automatically determine the best range or select a span of 2 4 6 8 or 10 degrees Time Duration sets how fast or slow the temperature log scrolls the shorter the time duration the faster the temperature log scroll Select a duration from 1 minute to 2 5 hours Sonar T
159. t in a route Also referred to as estimated time en route Time to Destination The estimated time required to reach a Go To destination or the nal waypoint in a route Time to Next The estimated time required to reach a Go To destination or the next waypoint in a route To Course The recommended direction to steer in order to reduce course error or stay on course Provides the most ef cient heading to get back to the desired course and proceed along your route Track The direction of movement relative to a ground position Also referred to as ground track Trip Odometer A running tally of distance travelled since last reset Also see Odometer Total Average Speed Average speed of unit for both moving and stopped speeds since last timer reset Total Trip Timer Total time the unit has been in operation since last reset of the trip timers Turn The angle difference between the bearing to your destination and your current track L indi cates you should turn left R indicates you should turn right The degrees indicate the angle you are off course VMG Velocity Made Good The speed you are closing in on a destination along a desired course Also referred to as the vector velocity to your destination DESIRED TRACK NORTH FROM WAYPOINT NORTH BRG TRK DESTINATIO WAYPOINT OFF COURSE SPEED DISTANCE TO DESTINATION GPSMAP178CManual indd 109 3
160. t to Other and press ENTER If you are actively following a route you may also choose Nearest to Next or Nearest to Destination 3 Select a reference point on the map and press ENTER The search results list changes to list items nearest to the new map position To nd a waypoint or item from another location on the map 1 From the Map Page use the ARROW KEYPAD to pan to the desired location and press FIND 2 Using the ARROW KEYPAD highlight the desired category from the list and press ENTER Find Items List From the Cur rent Location You may also start a Find from items found on the Find List or from another location on the map GPSMAP178CManual indd 65 3 19 2004 3 10 34 PM 66 Reference Find Options To view details about an item 1 With the desired item highlighted in the search results list press ENTER 2 An Information page appears with details about the item organized in a tabbed format Depending on the type of item additional options are available for viewing the item on the map viewing notes on a MapSource or BlueChart map viewing a tide chart viewing a list of maps on your data card and viewing the next item in the search results list The Find option supports a nd from feature which allows you to center your search around an item that you have just found For example you search for Restricted Areas and the search shows an Anchoring Prohibited search res
161. t used if you travel a wide variety of depths Resizing the Split Sonar Display Double Arrow Size Split Menu Options Fish Symbols Off All available information is displayed Suspended targets displays as sh symbols Background information is displayed Same as above with the target depth attached Suspended targets display as sh symbols No background information is displayed Same as above with target depth attached GPSMAP178CManual indd 38 3 19 2004 3 10 15 PM 39 Reference Sonar Tab Options If the unit is unable to track the bottom for any reason the digits in the depth window ashes on and off to alert you that the unit is not tracking the bottom Scale controls the depth Scale displayed vertically along the right side of the graph The depth Scale can be con gured to display four different ways as an Overlay in the Corners with Basic or No Scale Color Bar shows a gradient scale of the current Target Level setting see page 35 Flasher with the Flasher active a graphic Flasher representation is displayed on the far right side of the graph This graphic Flasher displays structure and bottom returns much the same as a true Flasher You may nd this feature particularly useful when using Fish Symbols Temperature Graph toggles On or Off the display of a temperature graph on the Sonar Page The graph is synchroniz
162. ted time you will reach your destination waypoint based on current speed and track ETA at Destination The estimated time you will reach a Go To destination or the nal waypoint in a route ETA at Next The estimated time you will reach a Go To destination or the next waypoint in a route Fuel The fuel required to travel from present position to the indicated route waypoint Leg Dist The distance between two route waypoints Leg Fuel The fuel required to travel from a route waypoint to the next waypoint in sequence in the route Leg Time The time required to travel from a route waypoint to the next waypoint in sequence in the route Max Speed The maximum second by second speed recorded since last reset Moving Average Speed Average speed while the unit is moving Moving Trip Timer Total time the unit has been moving GPSMAP178CManual indd 108 3 19 2004 3 11 09 PM 109 Appendix E Navigation Terms Odometer A running tally of distance travelled based upon the distance between second by second position readings Off Course The distance you are off a desired course in either direction left or right Also referred to as cross track error or course error Speed The current velocity at which you are travelling relative to a ground position Also referred to as ground speed Time To The estimated time required to reach a Go To destination or the next waypoin
163. ter Waypoints 37 Units 84 85 Unit Care 117 User Datum 104 User Waypoint List 50 V View 15 35 W WAAS 69 71 Warnings iii WARRANTY iv Water Immersion 117 Water Speed 39 40 Water Temperature Alarm 91 Water Type 38 Waypoints Append to Route 47 Waypoints Creating 10 13 24 44 47 50 Waypoints Creating Underwater 37 Waypoints Deleting 20 49 51 Waypoints Editing 48 49 Waypoints Moving 47 49 Waypoints Projecting 46 Waypoints Proximity 51 Waypoints Reviewing 13 48 Waypoints Tab 28 Waypoint List 50 Waypoint Menu Options 47 Waypoint Symbols 10 48 Whiteline 15 35 114 Wiring 96 Z Zoom Map 24 Zoom Sonar 14 15 34 GPSMAP178CManual indd 122 3 19 2004 3 11 18 PM GPSMAP178C Cover indd 3 6 9 2004 10 01 20 AM For the latest free software updates excluding map data throughout the life of your Garmin products visit the Garmin web site at www garmin com Copyright 2004 Garmin Ltd or its subsidiaries Garmin International Inc 1200 East 151st Street Olathe Kansas 66062 U S A Garmin Europe Ltd Unit 5 The Quadrangle Abbey Park Industrial Estate Romsey SO51 9DL U K Garmin Corporation No 68 Jangshu 2nd Road Shijr Taipei County Taiwan www garmin com Part Number 190 00321 02 Rev A GPSMAP178C Cover indd 4 6 9 2004 10 01 20 AM
164. th good geometry have been acquired and your position is now being calculated in latitude longitude and elevation 3D Differential appears when you are receiving DGPS corrections in 3D mode and a D shows on the strength bar of satellites being corrected Poor GPS Coverage the receiver is no longer tracking enough satellites for a 2D or 3D x Receiver Not Usable the receiver is unusable possibly due to interference or abnormal satellite conditions Turn the unit off and back on to reset Simulating the receiver is in simulator mode The Differential Receiver status shows one of the following Off No optional beacon receiver attached or enabled in the Comm menu or WAAS Off Searching For WAAS WAAS is enabled and receiver is searching for WAAS signal Using WAAS WAAS capability enabled and unit receiving WAAS corrections No Beacon Signal DGPS receiver attached but not transmitting RTCM data to GPS Tuning Beacon Receiver is tuning manual DGPS frequency Receiving Beacon Unit is receiving DGPS corrections Scanning Beacon DGPS receiver is scanning for available frequency Using DGPS Indicates a Differential signal is being received only displays when the Serial Data Format is set to Other DGPS on the Comm Tab of the Main Menu When the GPSMAP 178C is using a differential correction signal either WAAS or DGPS a D is disp
165. the 50 waypoints to the most signi cant points of your track and simpli es segments with fewer changes in direction To stop TracBack navigation 1 Press the NAV key highlight Stop Navigation and press ENTER For more information on setting up the Track options and saved tracks see pages 75 MOB Key The GPSMAP 178C s Man OverBoard function MOB lets you simultaneously mark and set a course to a position for quick response to emergency situations To activate the MOB function 1 Press and hold the MOB key for two seconds 2 Press ENTER to con rm and begin navigating to the MOB position Once a MOB has been activated a MOB waypoint with an international MOB symbol is created and the unit is set on an active navigation to that point Use any of the Navigation Pages to guide you back to the MOB point The MOB waypoint is stored in the waypoint list and may be deleted like any other waypoint see page 51 To stop navigation to the MOB position 1 Press the NAV key highlight Stop Navigation and press ENTER The MOB function allows you to quickly activate a course back to a location Highlight Stop Navigation and press ENTER to stop navigating GPSMAP178CManual indd 56 3 19 2004 3 10 27 PM 57 Reference Creating a Route Routes The last way to navigate to a destination is to create a user de ned route The Garmin GPSMAP 178C lets you create and store up to 50 reversible
166. to 50 waypoints each Uploadable maps using Garmin s MapSource PC products and BlueChart Data Cards Coordinates Lat Lon UTM UPS Loran TD plus over 20 grids including Maidenhead TracBack route feature which allows you to quickly retrace your track log to a starting position Built in simulator mode Built in tide information from over 3 000 tide stations around the USA coastline Alaska Hawaii western Canada and several Caribbean Islands Superior Fish nding Ability Whiteline feature provides a clear image of both bottom hardness and structure See Thru technology helps separate sh returns from thermoclines and structure Multiple zoom levels with a moving view window Underwater waypoint marking Map Sonar split screen combines navigation and sh nding information Fish and depth alarms GPSMAP178CManual indd v 3 19 2004 3 09 47 PM GPSMAP 178C Sounder Standard and Optional Transducers Unit part numbers 010 00340 00 and 010 00340 01 include a single frequency 200kHz plastic depth and temp transom mount transducer Unit part numbers 010 00340 02 and 010 00340 03 include a dual frequency 200 50kHz plastic depth and temp transom mount transducer Unit part numbers 010 00340 04 and 010 00340 05 do not include a transducer For a complete list of optional transducers contact your Garmin Dealer or Garmin direct For the most recent list of available accessories for
167. ult If you press FIND again you see From Anchoring Prohibited as the new search from point You may also use the Find feature to center your search from any waypoint route list entry map item or tide station Highlight the item you want to Find from and press the FIND key Find Options Using the Find options you may search from various map data and utilize variety of nearest criteria for all items except waypoints Available Find options are Nearest To Boat centers search from your boat s current location Nearest To Other allows you to choose another map location from which to search Nearest To Next centers search from the next point of your active route Nearest To Destination centers search from the last point of your active route To nd an item using the nd options 1 From any page press FIND 2 Using the ARROW KEYPAD highlight the desired category from the list and press ENTER 3 From the search results list press MENU then highlight the desired option and press ENTER Find Menu Options Additional Information Window Additional Information Tabs Additional Option Buttons Distance Bearing Coordinates of item GPSMAP178CManual indd 66 3 19 2004 3 10 35 PM 67 Reference Main Menu Page Main Menu Page The GPSMAP 178C s Main Menu Page provides access to various waypoint system navigation and interface management and setup menus in an easy t
168. uses the water to become turbulent It is important that the transducer be in clean non turbu lent water for optimal performance Speed Temp Transducer To Unit Additional Sensor Installation GPSMAP178CManual indd 98 3 19 2004 3 11 02 PM 99 Appendix A Mounting the Transducer To avoid drilling a hole to mount a thru hull transducer a transom mount transducer may be used with epoxy inside a boat shoot thru hull installation For a transducer to be mounted inside the hull shoot thru not thru hull the boat must be berglass no core contact your boat manufacturer if you are unsure Test by placing a small amount of water inside the hull placing the transducer on top of the water then verifying the accuracy of the locators versus the current water depth If they are the same use slow curing epoxy non silicone based to af x the transducer to the inside of the hull Shoot Thru Hull Installation The transducer is designed to be mounted inside a berglass hull The standard plastic transom mount transducer can also be mounted in this fashion using this method If using a temperature sens ing transducer the temperature displayed re ects the hull temperature Selecting a location 1 The location has to be solid berglass devoid of any air bubbles laminates llers or dead air space The location needs to be in an area of clean water at all speeds Do not place the transducer over any strakes or b
169. ust the distance Route Already Exists lt route name gt You have entered a route name that already exists in memory Modify the route name or delete the previous route name Route Does Not Exist lt route name gt Route has been renamed or removed from memory and cannot be used Route Is Full You have attempted to add more than 50 points to a route Reduce the number of points or create a second route Route Memory Is Full Can t Create Route Maximum amount of 50 routes is already in the unit s memory and no additional routes can be added until existing ones are removed Route Truncated An uploaded route from another device has more than 50 points Reduce the number of points Running Simulator The unit is in simulator practice mode Shallow Water Alarm Speci ed shallow water alarm depth has been detected below transducer Sonar Failed Unit Needs Repair Internal problem with the unit Contact your dealer or Garmin Customer Service page iv to have the unit serviced Track Already Exists lt track name gt You have entered a saved track name that already exists in memory Modify the track name or delete the previous track name Track Memory Is Full Can t Create Track Track log memory is full No additional track log data can be stored without deleting old data to create memory space Track Truncated A complete uploaded track does not t into memory The oldest track log points were deleted to mak
170. ustment options list use the ARROW KEYPAD to highlight the desired option and press ENTER 2 Use the ARROW KEYPAD to make the desired change and press ENTER Depth Line Adjustment Noise Reject Adjustment Scroll Adjustment Sonar Page Menu Options GPSMAP178CManual indd 36 3 19 2004 3 10 14 PM 37 Reference Sonar Page Options Show Pointer option enabled Data Window Pointer Show Numbers option enabled Show Hide Pointer allows you to reference sonar items and mark underwater waypoints This makes it easier to nd and use an object such as a stump for a future shing location When using this feature the Sonar Page pauses The pointer does not move off the paused display and cannot show an area that has scrolled off the screen The depth is updated while the display is paused but the unit does not show any new sonar data until the standard Sonar Page is resumed You may see a discontinuity from where the sonar information stops to where it starts again To mark an underwater waypoint 1 From the Sonar Page press MENU highlight Show Pointer and press ENTER to pause the screen movement 2 Use the ARROW KEYPAD to move the cursor onto the target underwater drop off stump etc you want to mark The data window at the top of the screen displays the cursor s depth coordi nates and bearing and distance from your current position 3 Press ENTER MARK The New Waypoint page appear
171. ute in which it was used Delete By Symbol deletes waypoints that use the same symbol Delete All deletes all waypoints from the unit Submenu Tabs Options Menu GPSMAP178CManual indd 50 3 19 2004 3 10 23 PM 51 Reference Waypoint Lists You can also search for a waypoint by name 1 Highlight the name eld and press ENTER 2 Use the ARROW KEYPAD to select the rst letter of the name 3 Move to the RIGHT and enter the second letter if you do not see it on the list below 4 Repeat this until the name appears Press ENTER when you see the name 5 Highlight the name on the list and press ENTER again to review the waypoint When done highlight OK and press ENTER Name Field Waypoint List Once a waypoint is deleted from the list it cannot be recovered from the unit It is advisable to backup important waypoints to a computer using an optional PC cable and interface software save them to a data card or write them down by hand To delete an individual waypoint from the User list 1 Use the ARROW KEYPAD to highlight the waypoint to be deleted 2 Press MENU highlight Delete Waypoint and press ENTER OR press ENTER highlight Delete and press ENTER 3 Press the ENTER key to con rm the deletion warning To delete waypoints by symbol 1 From the User tab highlight the waypoint to be deleted and press MENU then select Delete By Symbol and press ENTER 2
172. ved by unit WATER SPEED Speed through the water WATER TEMP LOG Timeline graph of the transducer s temperature reading WATER TEMPERATURE Water temperature If equipped with a speed sensor or speed capable transducer If equipped with a temperature sensor or temperature capable transducer NOTE COMPASS HIGHWAY POSITION SONAR and WATER TEMP LOG are only available on Large and Huge sized data elds Turn Declutter On Off toggles between showing spot soundings and map outlines for easier viewing Choose the type of data you wish to display Map Setup Menu Options GPSMAP178CManual indd 31 3 19 2004 3 10 11 PM 32 Reference Map Sonar Split Page Map Sonar Split Page The Map Sonar Split Page combines the Map Page on the left half with the Sonar Page on the right by default The menu options for this page are the same as the Map Page Any setting changes made from the Map Sonar Split Page will also affect the Map Page One additional option is that you may adjust the size of the split left or right Size Split enables width adjustment of the Map Sonar Split Page You may adjust the size of the map sonar split window anywhere from 1 3 to 2 3 width from the edges of the screen To resize the Map Sonar Split Page 1 From the Map Sonar Split Page press MENU 2 Highlight Size Split and press ENTER 3 Use the ARROW KEYPAD to move the horizontal double a
173. w Pointer 37 Signal Strength Bars 68 Simulated Tour 12 Simulator 71 83 Simulator Mode 7 11 17 Simulator Set Position 83 Simulator Speed 84 Simulator Track Control 84 Simulator Transducer 84 Size Split 32 37 38 Skyview Orientation 74 Software License Agreement i Software Version 84 Sonar Set Up 38 Sonar Understanding 111 115 Sonar Page 14 15 33 Sonar Page Options 36 Sonar Tab 38 Sonar Tab Options 38 Source Tab 27 Span 15 35 Speci cations 116 117 Speed Filter 83 Speed Units 85 Split 34 Stop Navigation 11 Storage 117 Sun Rise Set 74 Symbol Set 28 System Information 84 System Mode 83 System Tab 84 T Table of Contents vii Target Level 15 35 Temperature Graph 39 Temperature Scale 83 Temperature Tab 83 GPSMAP178CManual indd 121 3 19 2004 3 11 18 PM 122 Appendix I Index Temperature Time Duration 83 Temperature Units 85 Thermoclines 115 Tides 72 73 Tide Tab 73 Time Format 86 Time Offsets 110 Time Zone 86 TracBack 54 56 76 Tracks Deleting 76 Tracks Erasing 75 Tracks Reviewing 76 Tracks Saved 76 Tracks Saving 75 Track Color 75 Track Interval 75 Track Logs 54 55 75 Track Record Mode 75 Track Tab 29 54 55 75 76 Track Up Below 27 Track Value 75 Transducers 97 vi Transducers Mounting 98 99 Transducer Coverage 112 Transfer Mode 87 Trip Data 74 Trip Planning 63 Trip Tab 74 Turn Declutter On Off 31 U Understanding Sonar 111 115 Understanding the Graph 113 115 Underwa
174. w signal strength bars the receiver has found the indicated satellites and is collecting data Solid signal strength bars the receiver has collected the necessary data and the satellites are ready for use Once the receiver has collected information from at least three satellites the top of the screen dis plays either Ready 2D or 3D and the GPSMAP 178C Sounder is ready for use Point to your approximate loca tion and press ENTER MARK A satellite s strength bars turns green when it s ready for use GPSMAP178CManual indd 5 3 19 2004 3 09 53 PM 6 Getting Started Tour Backlighting GPSMAP 178C Sounder Getting Started Tour The Garmin GPSMAP 178C Sounder is a powerful electronic navigation system that provides detailed map coverage and convenient control of many advanced features right from the screen display This tour is designed to take you through the basic pages and functions of the system using the simula tor mode Once you re familiar with the main pages and functions of the unit refer to the reference section for instructions on performing speci c tasks and functions The Getting Started Tour assumes that the receiver has been properly installed and initialized and you have not changed any of the default unit settings If you have changed any settings position formats units of measure etc the descriptions and pictures in the tour may not match your con guration To turn the GPSMAP
175. y also be changed to show more elds with a smaller number size or less elds with a larger number size See page 29 Change Numbers allows you to specify the type of data displayed in each data eld For detailed instructions on changing the data elds on the Sonar Page see pages 30 31 Page Defaults restores the Sonar Page settings to the original factory setup To restore default settings to the Sonar Tab 1 Press MENU With Page Defaults highlighted press ENTER Keel Offset Transducer at Surface Enter positive number to show depth from bottom of keel Keel Offset Transducer at Bottom of Keel Enter negative number to show depth from surface Calibrating the Speed Sensor GPSMAP178CManual indd 40 3 19 2004 3 10 16 PM 41 Compass Page The GPSMAP 178C Sounder features two different navigation pages Compass and Highway When ever a NAV goto Follow Track TracBack or Follow Route have been activated the GPSMAP 178C Sounder s Compass Page guides you to your destination with digital readouts and a graphic compass display which includes a bearing pointer Use this page instead of the Highway Page when your desired path may be varied in direction The middle of the page features a rotating compass ring that shows your course over ground track while you re moving Your present course over ground is indicated at the top of the compass ring A bearing pointer arrow
176. you make a mistake and select an incorrect character simply press LEFT on the ARROW KEYPAD to backspace the cursor and then UP or DOWN to correct the entry If you accidentally press ENTER MARK before you are done simply press ENTER MARK again and move the highlight to where you left off 5 After you have entered all the letters press ENTER MARK to con rm the name 6 To access the waypoint symbol page highlight the waypoint symbol eld which is to the left of the waypoint s name and press ENTER MARK The default symbol is a dot 7 You see a grid of available waypoint symbols to choose from Use the ARROW KEYPAD to high light the ANCHOR symbol 8 Press ENTER MARK to con rm the ANCHOR symbol 9 Highlight OK at the bottom of the window and press ENTER MARK again to con rm the OK prompt and save the waypoint The waypoint is now stored in memory Note that waypoints may also be created graphically from the map display or by manually entering position coordinates Each of these techniques is described in the reference section of this manual Press ENTER MARK after entering the name You can choose from a list of useful symbols There are two Diver Down waypoint symbols to select from the International and U S versions GPSMAP178CManual indd 10 3 19 2004 3 09 58 PM 11 Getting Started Using the NAV Key Going to a Destination GPS is all about marking positions as waypoints and
177. your GPS unit current user manuals and software updates visit our web site at www garmin com vi Packing List Introduction Before installing and getting started with your unit please check to see that your package includes the following items If any parts are missing please contact your Garmin dealer immediately Standard Package GPSMAP 178C Sounder Unit GA 29 Remote External Antenna and 30 cable Internal Antenna Single Knob Tilt amp Swivel Bracket Power Data Cable Owner s Manual Quick Reference Card Protective Cover Not included with part numbers 010 00340 01 010 00340 03 or 010 003410 05 with internal antenna Not included with part numbers 010 00340 00 010 00340 02 or 010 003410 04 with remote antenna Optional Accessories US A C PC Adapter EURO A C PC Adapter Cigarette Lighter Adapter BlueChart Marine Data Cards MapSource CDs USB Data Card Programmer and Data Cards USB Data Card Programmer GBR 21 Beacon Receiver for differential corrections Transducers Temperature Sensors Water Speed Sensors Extension Cables GPSMAP178CManual indd vi 3 19 2004 3 09 47 PM vii Introduction Table of Contents Introduction i Preface Registration i Software License Agreement i FCC Compliance

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