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GPS 15xH/15xL TECHNICAL SPECIFICATIONS

1. Horizontal dilution of precision 0 5 to 99 9 Antenna height above below mean sea level 9999 9 to 99999 9 meters Geoidal height 999 9 to 9999 9 meters Null Differential GPS Null Differential Reference Station ID 4 2 5b GPS DOP and Active Satellites GSA GPGSA lt 1 gt lt 2 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt hh lt CR gt lt LF gt Mode M Manual A Automatic Fix type 1 not available 2 2D 3 3D PRN number 01 to 32 of satellite used in solution set to null if unused leading zeros will be transmitted Position dilution of precision 0 5 to 99 9 Horizontal dilution of precision 0 5 to 99 9 Vertical dilution of precision 0 5 to 99 9 GPS 15xH 15xL Technical Specifications Page 14 4 2 6 GPS Satellites in View GSV GPGSV lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt hh lt CR gt lt LF gt Total number of GSV sentences to be transmitted Number of current GSV sentence Total number of satellites in view 00 to 12 leading zeros will be transmitted Satellite PRN number 01 to 32 leading zeros will be transmitted Satellite elevation 00 to 90 degrees leading zeros will be transmitted Satellite azimuth 000 to 359 degrees true leading zeros will be trans
2. 514 4 to 514 4 meters second Up velocity 999 9 to 999 9 meters second 4 2 15 DGPS Beacon Information PGRMB PGRMB lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt K lt 6 gt lt 7 gt lt 8 gt hh lt CR gt lt LF gt No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models Distance to beacon reference station in kilometers No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models DGPS fix source R RTCM W WAAS N No DGPS fix available Currently selected DGPS mode as specified by the PGRMCI sentence of Section 4 1 4 A Automatic factory default W WAAS only R RTCM only N None No DGPS enabled GPS 15xH 15xL Technical Specifications Page 17 APPENDIX A EARTH DATUM LIST The following is a list of the Garmin GPS 15xH 15xL Earth datum indices and the corresponding earth datum name including the area of application 0 Co 00 Nn ta d WY NY 11 28 29 30 31 32 33 34 35 ADINDAN Ethiopia
3. IOP ACK BYTE 0x06 data IOP CMND DATA 0x0A 11 After you receive the above packet transmit the same packet in step 9 again id IOP CMND DATA 0x0A data IOP ACK PING 0x3A 12 The GPS will respond again with the same packet in step 10 id IOP ACK BYTE 0x06 data IOP CMND DATA 0x0A 13 The baud rate has been successfully changed upon receiving the above packet If the GPS unit does not receive these two IOP CMND DATA packets within two seconds it will reset its baud rate to 9600 GPS 15xH 15xL Technical Specifications Page 24 APPENDIX D EPHEMERIS DATA DOWNLOAD PROGRAMMING EXAMPLE Synopsis This section describes using an example how to download ephemeris information from a Garmin 15 15x 16 16x 17 18 or 18x family GPS unit with the exception of the GPS 15 W and the GPS 15 F Garmin Binary Format Review To download the ephemeris data you must first command the unit to output information in Garmin Binary Format Garmin mode instead of the default NMEA output format To put the unit in Garmin mode connect to the unit using a terminal program and send the following NMEA sentence PGRMO G hh lt CR gt lt LF gt The checksum hh is used for parity checking data and generally is not required in normal PC environments but is recommended for use in environments containing high electromagnetic noise When used the parity bytes hh are the ASCII representation of the exclusive or XOR sum of all the characters
4. Mali Senegal Sudan AFGOOYE Somalia AIN EL ABD 1970 Bahrain Island Saudi Arabia ANNA 1 ASTRO 1965 Cocos Island ARC 1950 Botswana Lesotho Malawi Swaziland Zaire Zambia Zimbabwe ARC 1960 Kenya Tanzania ASCENSION ISLAND 1958 Ascension Island ASTRO BEACON E Iwo Jima Island AUSTRALIAN GEODETIC 1966 Australia Tasmania Island AUSTRALIAN GEODETIC 1984 Australia Tasmania Island ASTRO DOS 71 4 St Helena Island ASTRONOMIC STATION 1952 Marcus Island ASTRO B4 SOROL ATOLL Tern Island BELLEVUE IGN Efate and Erromango Islands BERMUDA 1957 Bermuda Islands BOGOTA OBSERVATORY Colombia CAMPO INCHAUSPE Argentina CANTON ASTRO 1966 Phoenix Islands CAPE CANAVERAL Florida Bahama Islands CAPE South Africa CARTHAGE Tunisia CHATHAM 1971 Chatham Island New Zealand CHUA ASTRO Paraguay CORREGO ALEGRE Brazil DJAKARTA BATAVIA Sumatra Island Indonesia DOS 1968 Gizo Island New Georgia Islands EASTER ISLAND 1967 Easter Island EUROPEAN 1950 Austria Belgium Denmark Finland France Germany Gibraltar Greece Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland EUROPEAN 1979 Austria Finland Netherlands Norway Spain Sweden Switzerland FINLAND HAYFORD 1910 Finland GANDAJIKA BASE Republic of Maldives GEODETIC DATUM 1949 New Zealand ORDNANCE SURVEY OF GREAT BRITAIN 1936 England Isle of Man Scotland Shetland Islands Wales GUAM 1963 Guam Island GUX 1 ASTRO Guadalc
5. 0 to 999 9 meters 4 2 11 GPS Fix Data Sentence PGRMF PGRME lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt lt 10 gt lt 11 gt lt 12 gt lt 13 gt lt 14 gt lt 15 gt hh lt CR gt lt LF gt GPS week number 0 to 1023 GPS seconds 0 to 604799 UTC date of position fix ddmmyy format UTC time of position fix hhmmss format GPS leap second count Latitude ddmm mmmm format leading zeros must be transmitted Latitude hemisphere N or S Longitude dddmm mmmm format leading zeros must be transmitted Longitude hemisphere E or W Mode M Manual A Automatic Fix type 0 no fix 1 2D fix 2 3D fix Speed over ground 0 to 1851 kilometers hour Course over ground 0 to 359 degrees true Position dilution of precision 0 to 9 rounded to nearest integer value Time dilution of precision 0 to 9 rounded to nearest integer value 4 2 12 Map Datum PGRMM The Garmin Proprietary sentence PGRMM gives the name of the map datum currently in use by the GPS sensor This information is used by the Garmin MapSource real time plotting application PGRMM lt 1 gt hh lt CR gt lt LF gt Name of map datum currently in use variable length field for example WGS 84 GPS 15xH 15xL Technical Specifications Page 16 4 2 13 Sensor Status Information PGRMT The Garmin Proprietary sentence PGRMT gives information concernin
6. 15xL select Config gt Get Configuration from GPS or press the F8 key The current programming of the GPS 15xH 15xL is displayed in the window as shown on the previous page Open the Sensor Configuration Window by pressing the F6 key or selecting Config gt Sensor Configuration Place a check mark in the box next to Garmin Binary Output to change the GPS 15xH 15xL to Garmin Mode The unit will keep this change in the programming until you change it again in the software Note Selecting Config gt Switch to Garmin Mode or pressing the F11 key only changes the unit to work in Garmin Mode until power is cycled through the unit again For a more permanent change refer to step 8 above Click OK When you are ready to upload the changes into the GPS 15xH 15xL select Config gt Send Configuration to GPS or press the F9 key The new configuration is then loaded into the GPS 15xH 15xL You may disconnect and close the software when finished The software SNSRXCFG GARMIN X Series Sensor Configuration Software E File Comm Config View Help inixi sjal azte el St SNSRXCFG GPS 15xh Configuration file GPS Base Model System Configuration Baud rate Power Save Mode Garmin Binary 4800 bps Off Normal Mode Off HMEA Configuration HMEA 2 30 Mode Off NMEA Output Time 1 sec PPS Configuration PPS mode 1 Hz PPS Length 100 msec PPS Auto Off Off GPS Configuration Fix mode Automat
7. ABOVE LIMITATIONS MAY NOT APPLY TO YOU Garmin retains the exclusive right to repair or replace with a new or newly overhauled replacement product the device 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 Product Support for shipping instructions and an RMA tracking number Securely pack the device and a copy of the original sales receipt which is required as the proof of purchase for warranty repairs Write the tracking number clearly on the outside of the package Send the device freight charges prepaid to any Garmin warranty service station Online Auction Purchases Products purchased through online auctions are not eligible for warranty coverage Online auction confirmations are not accepted for warranty verification 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 International Purchases A separate warranty may be provided by international distributors for devices purchased outside the United States depending on the country If applicable this warranty is provided by the local in country distributor and this distributor provides local service for your device Distributor warranties are
8. Altitude velocity meters second msl hght Height mean sea level meters leap sec UTC leap seconds grmn days Garmin days days since December 31 1989 GPS 15xH 15xL Technical Specifications Page 22 DLE and ETX bytes Sample C code to receive the two records should filter DLE and ETX bytes as described below typedef enum DAT DLE ETX rx state type Declare and initialize static variables static char in que 256 static int in que ptr 0 Static rx state type rx state DAT void add to que char data define DLE BYTE 0x10 define ETX BYTE 0x03 if rx state DAT if data DLE BYTE rx state DLI else in que in que ptrt data Gl else if rx_state DL if data EIX BYT rx state else rx state DAT Gl Gl ETX in que in que ptr data else if rx state ETX if data DLE BYTE rx state DLE if in que ptr gt 255 in que ptr 0 GPS 15xH 15xL Technical Specifications Page 23 APPENDIX C CHANGING THE BAUD RATE IN GARMIN MODE In certain cases you may need to change the default baud rate of your Garmin GPS receiver while in Garmin mode Follow these steps to temporarily change the baud rate Refer to the Garmin Device Interface Specification found in the Garmin Device Interfa
9. EPH I0 odot float amp m TempArray IDX EPH ODOT idot float amp m TempArray IDX EPH IDOT cus float amp m TempArray IDX EPH CUS cuc float amp m TempArray IDX EPH CUC cis float amp m TempArray IDX EPH CIS cic float amp m TempArray IDX EPH CIC crs float amp m TempArray IDX EPH CRS crc float amp m TempArray IDX EPH CRC iod unsigned char amp m TempArray IDX EPH IOD s7 GPS 15xH 15xL Technical Specifications Page 28 Each data member of the ephemeris data structure is indexed into the data array of the ephemeris packet and cast as the appropriate data type The indices are as follows note that they correlate to the data members of the structure respectively define IDX EPH WN 0 define IDX EPH TOC 4 define IDX EPH TOE 8 define IDX EPH AFO 12 define IDX EPH AF1 16 define IDX _AF2 20 define IDX EPH URA 24 define IDX EPH E 28 define IDX EPH SORTA 36 define IDX EPH DN 44 define IDX EPH MO 52 define IDX EPH W 60 define IDX EPH OMGO 68 define IDX EPH IO 76 define I DX EPH ODOT 84 define IDX EPH IDOT 88 define IDX EPH CUS 92 define IDX EPH CUC 96 define IDX EPH CIS 100 define IDX EPH CIC 104 define IDX EPH CRS 108 define IDX EPH CRC 112 define IDX EPH IOD 116 The last packet will be a download complete packet that will look like this TX Packet Download Complete Byte Descripti
10. GPVTG lt 1 gt T lt 2 gt M lt 3 gt N lt 4 gt K lt 5 gt hh lt CR gt lt LF gt True course over ground 000 to 359 degrees leading zeros will be transmitted Magnetic course over ground 000 to 359 degrees leading zeros will be transmitted Speed over ground 000 0 to 999 9 knots leading zeros will be transmitted Speed over ground 0000 0 to 1851 8 kilometers per hour leading zeros will be transmitted Mode indicator only output if NMEA 0183 version 2 30 active A Autonomous D Differential E Estimated N Data not valid 4 2 9 Geographic Position GLL GPGLL lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt hh lt CR gt lt LF gt Latitude ddmm mmmm format leading zeros must be transmitted Latitude hemisphere N or S Longitude dddmm mmmm format leading zeros must be transmitted Longitude hemisphere E or W UTC time of position fix hhmmss format Status A Valid position V NAV receiver warning Mode indicator only output if NMEA 0183 version 2 30 active A Autonomous D Differential WAAS E Estimated N Data not valid GPS 15xH 15xL Technical Specifications Page 15 4 2 10 Estimated Error Information PGRME PGRME lt 1 gt M lt 2 gt M lt 3 gt M hh lt CR gt lt LF gt Estimated horizontal position error HPE 0 0 to 999 9 meters Estimated vertical position error VPE 0 0 to 999 9 meters Estimated position error EPE 0
11. a NMEA 0183 device to your computer As a result mapping applications that expect to hear NMEA 0183 data will not recognize your GPS 15xH 15xL until you re enable the NMEA 0183 output disabling the Garmin Binary Output in the process Refer to Appendix F Sensor Configuration Software for complete information about downloading the Sensor Configuration Software application After the Sensor Configuration Software is installed and running on your computer follow the steps below to change the default data output of the GPS 15xH 15xL 1 Select the GPS 15x 15xH 15xL from the list of sensors i s MON and click OK The Sensor Configuration Software opens N siah T with the default configuration file for the 15xH 15xL as connecting to E shown on the next page C GPS 16x 2 E rr 7 Switch to NMEA Mode or press the C GPS 17 3 Select Comm gt Setup to open the Comm Setup C GPS 18x PCAVC Window C GPS 18x 5H2 GPS 15xH 15xL Technical Specifications Page 30 10 11 Select the serial port to which the 15xH 15xL is connected Select Auto to have the program automatically determine the baud rate or select Manual to manually select the baud rate of the GPS 15xH 15xL Click OK when done Comm Setup x Serial Port Baud Rate fco z Auto com bz Manual Cancel Click 8 Connect or select Comm gt Connect to connect to the GPS 15xH 15xL To view the current programming of the GPS 15xH
12. field represents a set of Booleans described below Meaning when bit is one 1 The unit has ephemeris data for the specified satellite The unit has a differential correction for the specified satellite The unit is using this satellite in the solution This pattern is repeated for 12 satellites for a total of 12 x 7 bytes 84 0x54 bytes GPS 15xH 15xL Technical Specifications Page 21 RS 232 Packet for the Satellite Record 0x10 DLE is first byte 0x72 Record ID single byte 0x54 Number of data bytes single byte 12 cpo sat data records Ox 27s complement of the arithmetic sum of the bytes between the delimiters 0x10 DLE 0x03 ETX is last byte Position Record The Position Record has a record identifier of typedef struct float alt float epe float eph float epv int fix double gps tow double lat double lon float lon vel float lat vel float alt vel float msl hght int leap sec long grmn days cpo pvt data alt Ellipsoid altitude meters epe Estimated position error meters eph Position error horizontal meters epv Position error vertical meters fix 0 no fix 1 no fix 2 2D 3 3D 4 2D differential 5 3D differential 6 and greater not defined gps tow GPS time of week sec lat Latitude radians lon Longitude radians lon vel Longitude velocity meters second lat vel Latitude velocity meters second alt vel
13. of day The transmitted date and time of day for leap second correction follow the guidelines in National Institute of Standards and Technology Special Publication 432 Revised 1990 for sale by the Superintendent of Documents U S Government Printing Office Washington D C 20402 U S A When a positive leap second is required one second is inserted at the beginning of the first hour Oh 0m Os of the day that the positive leap is occurring The minute containing the leap second is 61 seconds long The GPS sensor would have transmitted this information for the leap second added December 31 1998 as follows GPRMC 235959 A 3851 3651 N 09447 9382 W 000 0 000 0 311298 003 3 E 65 GPRMC 000000 A 3851 3651 N 09447 9382 W 000 0 000 0 010199 003 3 E 64 GPRMC 000000 A 3851 3651 N 09447 9382 W 000 0 000 0 010199 003 3 E 64 GPRMC 000001 A 3851 3651 N 09447 9382 W 000 0 000 0 010199 003 3 E 65 If a negative leap second should be required one second will be deleted at the end of some UTC month The minute containing the leap second will be only 59 seconds long In this case the GPS sensor will not transmit the time of day 0h Om Os the zero second for the day from which the leap second is removed GPS 15xH 15xL Technical Specifications Page 13 For example if a negative leap second had been required on December 31 1998 the result would have been as follows GPRMC 235959 A 3851 3651 N 09447 9382 W 000 0 000 0 311298 003 3 E 65
14. only valid in the area of intended distribution Devices purchased in the United States or Canada must be returned to the Garmin service center in the United Kingdom the United States Canada or Taiwan for service GPS 15xH 15xL Technical Specifications Page 2 1 3 OVERVIEW The GPS 15xH and GPS 15xL sensor boards are designed for a broad spectrum of OEM Original Equipment Manufacturer system applications Based on the proven technology found in other Garmin GPS receivers the GPS 15xH 15xL tracks multiple satellites at a time while providing fast time to first fix precise navigation updates and low power consumption The GPS 15xH 15xL includes the capability of Wide Area Augmentation System WAAS differential GPS The GPS 15xH 15xL requires minimal additional components to be supplied by an OEM or system integrator A minimum system must provide the GPS with a source of power an active GPS antenna and a clear view of the GPS satellites The system may communicate with the GPS 15xH I5xL through its RS 232 asynchronous serial port End user interfaces such as keyboards and displays are the responsibility of the application designer 1 4 FEATURES e GPS receiver tracks and uses multiple satellites for fast accurate positioning and velocity estimates e Compact rugged design ideal for applications with minimal space e May be remotely mounted in an out of the way location e User initialization is not required Once installed this de
15. to disable the Serial BallPoint mouse in the Device Manager This solution assumes that you do not need to use a Serial BallPoint mouse with your computer When erratic mouse movements occur follow the steps below 1 Unplug the DB9 connector 2 Right click the My Computer icon on your desktop and select Properties to open Device Manager 3 Go to the hardware tab of the resulting pop up window and click on the Device Manager button 4 Right click on Serial BallPoint Mouse and choose the option to Disable NOT uninstall this device Solution 2 Do not plug the DB9 connector into the computer until the computer is turned on and the operating system is completely booted up and running Every time you use the GPS 15xH 15xL you will need to start the computer and operating system before making the connection between the GPS 15xH 15xL and the computer This solution usually works on computers running Windows 2000 and newer versions of Windows Solution 3 Change the default output of the GPS 15xH 15xL so that it does not automatically send NMEA 0183 data to the computer change the default configuration to enable Garmin Binary Output Use the Garmin Sensor Configuration Software named SNSRXCFG EXE provided on the Web site to enable Garmin Binary Output To download the software start at www garmin com oem select the GPS 15xH 15xL and then select Software NOTE By enabling Garmin Binary Output the device will no longer appear as
16. CFG 15xH 15xL Click OK when done VES Dore Bowen Ee HIN TNT ap Latitude 00 00 000 N Sentences 4 Click 8 Connect or select Comm gt Connect Ld rie EUM beo Altitude 300 0 meters GPGSA GPGSV 5 To view the current programming of the sensor PARI Automatic GPRIC Filter mode Automatic PGRME select Config gt Get Configuration from GPS or Aena pogai nae press the F8 key The current programming of the Dead Reckon Time 30 sec sensor is displayed in the window shown to the right Earth datum index GPS 15xH 15xL Technical Specifications Page 32 File Menu The File Menu allows you to open save and print sensor configurations The items in the File Menu work like most Windows based programs Comm Menu The Comm Communication Menu allows you to set the port number baud rate and then connect and disconnect from the sensor Setup Opens the Comm Setup Window shown to the left Select X the Serial Port to which the sensor is connected from the drop Serial Port Baud Rate down list E 6 sole nes Select Auto the program determines the baud rate on its own or Manual you then enter the baud rate for the Baud Rate entry _Cancel_ Connect Select Connect to connect to the sensor to change or view the configuration Disconnect Select Disconnect to disconnect from the sensor Config Menu x The Config Configuration Menu allows you 99s m Configuration to configur
17. Diagrams e EH TRES TR RIT HERRERA RENE ee 7 3 Mechanical Characteristics amp Mounting ecce eese eee e eren eee en eese en seen sees cel 4 GPS I15xH 15xL Software Interface eee ee ee ee eese esee eese sn sees eese eesessss sse eeeeeese D 4 1 Received NMEA 0183 Sentences 4 1 1 Almanac Information ALM ccccecceecceseessesseesecsecseeeseesecsaecseessensecuecsaecaeeeseeseceaecaseeseesecaeenseeseeeenas 4 1 2 Sensor Initialization Information PGRMID sese enne enne 10 4 1 3 Sensor Configuration Information PGRMC sss enne eene etre nre 10 4 1 4 Additional Sensor Configuration Information PGRMCI sse ene 11 4 1 5 Output Sentence Enable Disable PGRMO sessi 11 4 2 Transmitted NMEA 0183 Sentences eeeeceseesessecseeeecneeeeceseeeessecseesecneeseceaseeseenaeeeeaesateeesneeeres 12 4 2 1 Sentence Transmission ioi tores de ved doc eec ped ao epe LU XR Ee red Ree tee ep epa abre eda en bte eid 12 422 Transmitted Time serene Rede deep cbs e HU ee ge aves e tede beet ea esee Pete eeu e donde eet 13 4 2 3 Global Positioning System Almanac Data ALM sese eene ener 14 4 2 4 Global Positioning System Fix Data GGA 4 2 5 GPS DOP and Active Satellites GSA eee eccescceseeseeeecesecseeseesecaecaseeseeseesecnaecnaeeseeseenaecaaeeseeeseasente 42 6 GPS Satellites View GSV A diii ier tereti ie eee ep Goh egeta Mee
18. GPRMC 000001 A 3851 3651 N 09447 9382 W 000 0 000 0 010199 003 3 E 65 GPRMC 000002 A 3851 3651 N 09447 9382 W 000 0 000 0 010199 003 3 E 66 4 2 3 Global Positioning System Almanac Data ALM Almanac sentences are not normally transmitted Send the GPS sensor a PGRMO GPALM 1 command to initiate almanac transmission Upon receipt of this command the GPS sensor will transmit available almanac information on GPALM sentences During the transmission of almanac sentences other NMEA 0183 data output is suspended temporarily GPALM lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt lt 10 gt lt 1 1 gt lt 12 gt lt 13 gt lt 14 gt lt 15 gt hh lt CR gt lt LF gt lt field information gt can be found in Section 4 1 1 Almanac Information ALM 4 2 4 Global Positioning System Fix Data GGA GPGGA lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt M lt 10 gt M lt 11 gt lt 12 gt hh lt CR gt lt LF gt UTC time of position fix hhmmss format Latitude ddmm mmmm format leading zeros will be transmitted Latitude hemisphere N or S Longitude dddmm mmmm format leading zeros will be transmitted Longitude hemisphere E or W GPS quality indication 0 fix not available 1 Non differential GPS fix available 2 Differential GPS WAAS fix available 6 Estimated Number of satellites in use 00 to 12 leading zeros will be transmitted
19. GPS 15xH 15xL TECHNICAL SPECIFICATIONS A GARMIN 190 00266 03 Revision A December 2009 Copyright 2009 Garmin Ltd or its subsidiaries All Rights Reserved Except as expressly provided below 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 Garmin International Inc 1200 East 151 Street Olathe KS 66062 U S A Telephone 913 397 8200 FAX 913 397 8282 Garmin Europe Ltd Liberty House Hounsdown Business Park Southampton Hampshire SO40 9LR UK Tel 44 0 870 8501241 outside the UK 0808 2380000 within the UK Fax 44 0 870 8501251 Garmin Co
20. NDERIJ Surinam 102 CH 1903 Switzerland 103 Hu Tzu Shan 104 Indonesia 74 105 Austria 106 Potsdam 107 Taiwan modified Hu Tzu Shan 108 GDA Geocentric Datum of Australia 109 Dutch GPS 15xH 15xL Technical Specifications Page 20 APPENDIX B GARMIN BINARY OUTPUT FORMAT In binary output mode the GPS 15xH 15xL will transmit packets once per second The record contains primarily post process information such as position and velocity information The default serial port settings in binary output mode is 4800 baud 8 data bits start bit 1 stop bit and no parity Of those settings only the baud rate may be changed Please see Appendix C for details on changing the baud rate in binary output mode To enable the binary output mode as a power on default powers up with this mode enabled use the PGRMC1 NMEA 0183 sentence as described in Section 4 1 4 You must currently be operating in NMEA 0183 mode in order for NMEA 0183 configuration sentences to have any effect If you wish to enable the binary output mode and you do not wish to alter the setting for which mode NMEA 0183 or binary output is enabled at power on use the SPGRMO NMEA 0183 sentence as described in Section 4 1 5 Refer to the Garmin Device Interface Specification found in the Garmin Device Interface SDK for details on how to form and parse Garmin packets available at www garmin com support commProtocol html Note that the satellite data information is also enabled whe
21. PS 15xH 15xL Technical Specifications s Page 27 An example function to do the parsing is shown below Note that the double data types are converted by the function cnvt_ieee double This function merely swaps the upper and lower words of the double This is necessary for GPS 15 15x 16 16x 17 18 and 18x series sensors due to a compatibility issue with the IEEE floating point standard In this example the array m TempArray contains the data portion of the ephemeris packet with DLE stuffing removed KR KKK ke ke ke ek ek e x Ck ck ck ck ck Ck ck kk kk Ck Ck Ck ck Ck Ck kk Sk Ck ck Ck Ck kk Sk ck kk ck kk Sk kk Sk kk kk ck Mk Sk Sk Sk ko Mk k kv ko ko ko ko k ko Be PROCEDURE NAM copyData e DESCRIPTION unpacks data integer type Ckckck ckck ckck kk ck k kk k void GPM ephList GPM ephData pTemp EphStruct pTemp EphStruct pTemp EphStruct pTemp EphStruct pTemp EphStruct pTemp EphStruct pTemp EphStruct cnvt ieee double emp gt EphStruct cnvt ieee double EphStruct cnvt ieee double emp gt EphStruct cnvt ieee double cnvt ieee double cnvt ieee double pTemp EphStruct cnvt ieee double pTemp EphStruct pTemp gt EphStruct pTemp gt EphStruct pTemp gt EphStruct pTemp EphStruct pTemp gt EphStruct pTemp gt EphStruct pTemp gt EphStruct pTemp gt EphStruct pTemp Eph
22. Sensor Configuration Software eee eee eee eee eene ense en sees 3 2 Downloading the Sensor Configuration Software essen enr eee entente 32 selectng a Model 413 d co deo teet i eh cea te ide ati e eae deed 32 Connecting to the Sensor s 5d eb pete o RE re eti e OR e pip gi inde eda Ei qe ae EEA EES 32 Eilc Menins si Er n M tL MEE MM 33 CommiMenUu oec m ore et aret Rare pter i E ot ROT EURO Re ete i dine TES 33 Confie C pirri 33 View Me d o Der aeuo pi e ade aaa ede gs 34 Help Menu eicere teen eee oho ee ea e denen oe cues de ak eek een eae ege de ea coo de VEES ENERE S je eaa ge ree ede 34 LIST OF TABLES AND FIGURES Table 1 GPS 15xH 15xL Wire Descriptions eese nennen nennen enne 6 Figure 1 Computer Serial Port Interconnection essere nennen enne 7 Figure 2 PDA Serial Port Interconnection esses enne enne trennen enne 7 Figure 3 Basic NMEA Device Interconnection eseseeeeeeeeeeeeeeeneenen rennen eneenre nenne netten enne 7 Figure 4 GPS 15xH F amp I5xL F Dimensions esee eene nennen nennen enne enne tnen t ennn 8 Figure 5 GPS 15xH W amp 15xL W Outline Drawing esee 8 Table 2 NMEA 0183 Output Sentence Order and Size essen 13 Table 3 Characters per Second for Available Baud Rates sse 13 GPS 15xH 15xL Technical Specifications Page iv 1 INTRODUCTION 1 1 CA
23. Struct return copyData EphStruct m0 double amp m 7 phemeris data unpacker Fl Qn from ephemeris packet DATA field after extraneous DL have been removed Note that sintl16 refers to a signed 16 bit FER Ck k Ck k kk kk kk kk kk kk kk k k kk kk kk kc k kc k kc k kc kckckckckckckokckokckok sk kk ke e e x amp f copyData ephemeris data unpacker x pTemp pointer to ephemeris data array f wn sintl16 amp m TempArray IDX EPH WN toc float amp m TempArray IDX EPH TOC toe float amp m TempArray IDX EPH TOE af0 float amp m TempArray IDX EPH AF0 afl float amp m TempArray IDX EPH AF1 af2 float amp m TempArray IDX EPH AF2 ura float amp m TempArray IDX EPH URA long amp m TempArray IDX EPH E e double amp m TempArray IDX EPH E long amp m TempArray IDX EPH SQRTA sqrta double amp m TempArray IDX EPH SORTA long amp m TempArray IDX EPH DN dn double amp m TempArray IDX EPH DN long amp m TempArray IDX EPH M0 empArray IDX EPH MO long amp m TempArray IDX EPH W emp gt EphStruct w double amp m_TempArray IDX EPH W long amp m TempArray IDX EPH OMGO omg0 double amp m TempArray IDX EPH OMGO long amp m TempArray IDX EPH I0 i0 double amp m TempArray IDX
24. UTION The GPS system is operated by the government of the United States which is solely responsible for its accuracy and maintenance Although the GPS 15xH and GPS 15xL are precision electronic NAVigation AIDs NAV AIDs any NAVAID can be misused or misinterpreted and therefore become unsafe Use these products at your own risk To reduce the risk carefully review and understand all aspects of these Technical Specifications before using the GPS 15xH or GPS 15xL When in actual use carefully compare indications from the GPS to all available navigation sources including the information from other NAVAIDs visual sightings charts etc For safety always resolve any discrepancies before continuing navigation FCC Compliance This device complies with part 15 of the FCC Rules Operation is subject to the following two 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 has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and may cause harmful interference to radio communications if not installed and used in accordance with the instructions However there
25. anal Island HJORSEY 1955 Iceland GPS 15xH 15xL Technical Specifications Page 18 36 37 38 39 40 4l 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 23 74 HONG KONG 1963 Hong Kong INDIAN Bangladesh India Nepal INDIAN Thailand Vietnam IRELAND 1965 Ireland ISTS O73 ASTRO 1969 Diego Garcia JOHNSTON ISLAND 1961 Johnston Island KANDAWALA Sri Lanka KERGUELEN ISLAND Kerguelen Island KERTAU 1948 West Malaysia Singapore L C 5 ASTRO Cayman Brac Island LIBERIA 1964 Liberia LUZON Mindanao Island LUZON Phillippines excluding Mindanao Island MAHE 1971 Mahe Island MARCO ASTRO Salvage Islands MASSAW A Eritrea Ethiopia MERCHICH Morocco MIDWAY ASTRO 1961 Midway Island MINNA Nigeria NORTH AMERICAN 1927 Alaska NORTH AMERICAN 1927 Bahamas excluding San Salvador Island NORTH AMERICAN 1927 Central America Belize Costa Rica El Salvador Guatemala Honduras Nicaragua NORTH AMERICAN 1927 Canal Zone NORTH AMERICAN 1927 Canada including Newfoundland Island NORTH AMERICAN 1927 Caribbean Barbados Caicos Islands Cuba Dominican Republic Grand Cayman Jamaica Leeward Islands Turks Islands NORTH AMERICAN 1927 Mean Value CONUS NORTH AMERICAN 1927 Cuba NORTH AMERICAN 1927 Greenland Hayes Peninsula NORTH AMERICAN 1927 Mexico NORTH AMERICAN 1927 San Salvador Island NORTH AMERICAN 1983 Alaska Canada Central America CONUS Mexic
26. arts such as batteries unless product damage has occurred due to a defect in materials or workmanship iii damage caused by accident abuse misuse water flood fire or other acts of nature or external causes iv damage caused by service performed by anyone who is not an authorized service provider of Garmin or v damage to a product that has been modified or altered without the written permission of Garmin In addition Garmin reserves the right to refuse warranty claims against products or services that are obtained and or used in contravention of the laws of any country This product is intended to be used only as a travel aid and must not be used for any purpose requiring precise measurement of direction distance location or topography Garmin makes no warranty as to the accuracy or completeness of map data in this THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS IMPLIED OR STATUTORY INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE STATUTORY 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 INDIRECT 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
27. ata SIZE 0x78 Ephemeris data DATA E Checksum calculation CHKSUM mE Delimiter DLE 0x10 End of packet ETX 0x03 The data portion of each packet can then be parsed into an instance of the following structure Each of these structures represents data from a single satellite typedef struct sint16 float float float float float float double double double double double double double floa loa loa loa loa loa loa floa Fh Fh Fh Fh Fh Fh Cr ET ET CT Cb ET CL I unsigned char spo eph type SD wn Loc toe af0 afl af2 ura e sorta dn m0 W omg0 i0 odot idot Cus cuc cis cic Crs Cre ephemeris data record for SPC week number weeks reference time of clock parameters s reference time of ephemeris parameters s clock correction coefficient group delay clock correction coefficient s s clock correction coefficient s s s user range accuracy m eccentricity square root of semi major axis a m 1 2 mean motion correction r s mean anomaly at reference time r argument of perigee r right ascension r inclination angle at reference tim r rate of right ascension r s rate of inclination angle r s argument of latitude correction sine r argument of latitude correction cosine r inclination correction sine r inclination correction cosine r radius correction sine m radius correction cosine m issue of data G
28. between the and characters non inclusive Sentences may be truncated by lt CR gt lt LF gt after any data field and valid fields up to that point will be acted on by the GPS sensor See Section 4 Software Interface The unit will stay in Garmin mode until the next power cycle Now that the unit is in Garmin binary format transmitted and received packets are structured as follows Byte Description Name Notes Packet Delimiter DLE 0x10 Packet ID type ID Packet type Data Size SIZE Number of bytes in data portion not including escaped DLEs See below Data bytes DATA Not to exceed 256 bytes Checksum CHKSUM 2 s complement of the arithmetic sum of all the bytes from the Packet ID byte to the last DATA byte inclusive not counting escaped DLEs See below Packet Delimiter DLE 0x10 End of Packet ETX 0x03 The DLE 0x10 is a delimiter byte used in conjunction with the ETX byte to determine beginning and ending of a packet However a 0x10 could appear in the data itself if this occurs the byte is escaped with another DLE byte sometimes referred to as DLE stuffing In other words if a DLE occurs in the data another DLE is transmitted immediately after to indicate that it is a data byte and it is not being used as a delimiter Note that the size byte of the packet does not count the second DLE byte in an escaped DLE pair in the data field Since a DLE that is a part of the data will have a second DLE t
29. bility with other models PPS mode No PPS 2 1 Hz PPS pulse length 0 48 n 1 20 ms Example n 4 corresponds to a 100 ms wide pulse Dead reckoning valid time to 30 seconds All configuration changes take effect after receipt of a valid value except baud rate Baud rate changes take effect on the next power cycle or an external reset event GPS 15xH 15xL Technical Specifications Page 10 4 1 4 Additional Sensor Configuration Information PGRMC1 The PGRMCI sentence provides additional information used to configure the GPS sensor operation Configuration parameters are stored in non volatile memory and retained between power cycles The GPS sensor will echo this sentence upon its receipt if no errors are detected If an error is detected the echoed PGRMCI sentence will contain the current default values Current default values can also be obtained by sending PGRMC1E lt CR gt lt LF gt or PGRMCIE 3F lt CR gt lt LF gt to the GPS sensor PGRMCI1 lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt lt 10 gt lt 11 gt lt 12 gt lt 13 gt hh lt CR gt lt LF gt NMEA 0183 output time 1 to 900 sec Garmin Binary Output 1 Off 2 On No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Eff
30. ce SDK for details on how to form and parse Garmin packets available at www garmin com support commProtocol html 1 Turn off all requests by transmitting packet id IOP RQST DATA 0x1C data 0 16 bit unsigned integer 2 The GPS unit will respond by sending a packet with id IOP ACK BYTE 0x06 3 After you receive the above packet transmit packet id IOP BAUD RQST DATA 0x30 data baud rate to change to 32 bit unsigned integer for example 38400 4 The GPS unit will respond by sending a packet id IOP BAUD ACPT DATA 0x31 data highest acceptable baud rate closest to what was requested 32 bit unsigned integer for example 38361 decimal 5 Determine the actual baud rate value from the data sent in step 4 This value will be within 5 of the actual baud rate For example the GPS unit might send a baud rate of 38361 which correlates to a baud rate of 38400 6 Ifthe baud rate in step 5 is acceptable transmit packet id IOP ACK BYTE 0x06 data IOP BAUD ACPT DATA 0x31 7 Sleep for a small amount of time about 100 milliseconds to make sure the packet in 6 was successfully transmitted to the GPS unit 8 Close the current connection to the GPS unit and immediately open a new connection with the new baud rate obtained in step 5 9 Immediately after establishing a connection transmit packet id IOP CMND DATA 0x0A data IOP ACK PING 0x3A 10 The GPS will respond by sending a packet id
31. ce description field must be an identifier for one of the sentences that can be output by the GPS sensor If either the target sentence mode field or the target sentence description field is not valid the PGRMO sentence will have no effect PGRMO GPALM 1 lt CR gt lt LF gt will cause the GPS sensor to transmit all stored almanac information All other NMEA 0183 sentence transmission will be suspended temporarily PGRMO G lt CR gt lt LF gt will cause the COM port to change to Garmin Binary Output mode for the duration of the power cycle or until 10 0A 02 26 00 CE 10 03 Hexadecimal is sent to the GPS receiver in order to return to NMEA 0183 mode as described in Section 4 1 4 Garmin binary mode is required for GPS 15xH 15xL series product software updates 4 2 TRANSMITTED NMEA 0183 SENTENCES The subsequent paragraphs define the sentences that can be transmitted on COM 1 by the GPS sensor 4 2 4 Sentence Transmission Sentences are transmitted with respect to the user selected baud rate Regardless of the selected baud rate the information transmitted by the GPS sensor is referenced to theUTC second boundary immediately preceding the GPRMC sentence or whichever sentence is output first in the burst see Table 3 below The GPS sensor will transmit each sentence except where noted in particular transmitted sentence descriptions at a periodic rate based on the user selected baud rate and user selected output sentences The GPS sensor
32. chnical Specifications Page 7 3 MECHANICAL CHARACTERISTICS amp MOUNTING 057 1 44 185 Lors 1 400 142 3 60 047 1 19 327 DETAIL A ast SCALE 3 1 1 Dimensions in millimeters inches 2 Dimension tolerance 0 25 mm 0 01in 3 Use M2 mounting screws Figure 4 GPS 15xH F amp 15xL F Dimensions PIN 1 o m o 1 Dimensions identical to GPS 15xH F and GPS 15xL F 2 Use M2 mounting screws Figure 5 GPS 15xH W amp 15xL W Outline Drawin GPS 15xH 15xL Technical Specifications Page 8 4 GPS 15XH 15XL SOFTWARE INTERFACE The factory default interface protocol of the GPS 15xH 15xL serial com port 1 is based on the National Marine Electronics Association s NMEA 0183 ASCII interface specification This standard is fully defined in NMEA 0183 Version 2 30 Copies may be obtained from NMEA www nmea org In addition to the standard NMEA 0183 sentences the GPS 15xH 15xL may also be configured to transmit information over their serial interface using NMEA 0183 compliant Garmin proprietary sentences These proprietary sentences begin with the characters PGRM instead of the characters G that are typical of the standard NMEA 0183 sentences The characters P indicate that the sentence is a proprietary implementation and the characters and GRM indicate that it is Garmin s proprietary sentence The character or characters that follow the characters SPGRM uniqu
33. communicating how many data packets to expect for the ephemeris download a maximum of twelve RX Packet Number of Data Packets to Expect Byte Description Delimiter Record ID Number of Pad Checksum Delimiter End of pa Number of bytes in data records calculation cket Name DLE IOP REC SIZI NUM SV DATA CHKSUM DLE ETX Ei ORDS HEX Value 0x10 Ox1B 0x02 Ox0C 0x00 0x10 0x03 This packet requires acknowledgement as shown below note that the data field contains the IOP RECORDS ID to indicate the acknowledgement of the TOP RECORDS packet TX Packet Acknowledgement Byte Description Delimiter Record ID Pad Checksum Delimiter End of pa GPS 15xH 15xL Technical Specifications Number of bytes in data ID of packet being ACK d calculation cket Name DLE IOP ACK SIZ DA IOP REC CHKSUM DLE ETX H D BYTI Gl ORDS HEX Value 0x10 0x06 0x02 0x00 Ox1B 0x10 0x03 Page 26 Next the unit will send the specified number of packets containing the ephemeris information An example packet is shown below Each packet should be acknowledged as before Be sure to modify the ACK packet to indicate what type of packet being acknowledged For ephemeris data the ID is 0x35 RX Packet Ephemeris Data Byte Description Name HEX Value Delimiter DLE 0x10 Ephemeris data ID IOP SPC EPH DATA 0x35 Number of bytes in d
34. d by sending PGRMCE lt CR gt lt LF gt or PGRMCE 0E lt CR gt lt LF gt to the GPS sensor PGRMC lt I1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt lt 10 gt lt 1 1 gt lt 12 gt lt 13 gt lt 14 gt hh lt CR gt lt LF gt Fix mode A Automatic 3 3D exclusively Altitude above below mean sea level 1500 0 to 18000 0 meters Earth datum index If the user datum index 96 is specified fields lt 4 gt through lt 8 gt must contain valid values Otherwise fields lt 4 gt through lt 8 gt must be null Refer to Appendix A Earth Datum List for a list of earth datum and the corresponding earth datum index User earth datum semi major axis 6360000 000 to 6380000 000 meters 001 meters resolution User earth datum inverse flattening factor 285 0 to 310 0 10 resolution User earth datum delta x earth centered coordinate 5000 0 to 5000 0 meters 1 meter resolution User earth datum delta y earth centered coordinate 5000 0 to 5000 0 meters 1 meter resolution User earth datum delta z earth centered coordinate 5000 0 to 5000 0 meters 1 meter resolution Differential mode A Automatic output DGPS data when available non DGPS otherwise D Differential exclusively output only differential fixes NMEA 0183 Baud rate 3 4800 4 9600 5 19200 8 38400 No Effect This field is not used on the GPS 15xH 15xL and is included only for compati
35. d default NMEA 0183 output interval configurable from 1 to 900 seconds in 1 second increments 1 5 4 4 Accuracy e GPS Standard Positioning Service SPS Position 15 meters 95 typical 100 meters with Selective Availability on Velocity 0 1 knot RMS steady state DGPS USCG RTCM Position 3 5 meters 95 typical Velocity 0 1 knot RMS steady state e DGPS WAAS Position 3 meters 95 typical Velocity 0 1 knot RMS steady state e PPS Time 1 microsecond at rising edge of MPO pulse subject to Selective Availability e Dynamics 999 knots velocity only limited at altitude greater than 60 000 feet 3g dynamics 1 5 5 Interfaces 1 5 5 1 GPS 15xH 15xL Electrical Characteristics e True RS 232 output Port 2 output not used at time of publication asynchronous serial input compatible with RS 232 or TTL voltage levels RS 232 polarity e Factory setting is 4800 baud User selectable baud 4800 9600 19200 38400 GPS 15xH 15xL Technical Specifications Page 4 1 5 6 Antenna Specifications The active antenna used with the GPS 15xH 15xL should have the following specifications Gain RF Connection Garmin Antenna Noise Figure Gain Antenna should provide between 10 dB to 30 dB net gain between the antenna feed point and the connection to the GPS 15xH 15xL All amplifier gains filter losses cable losses etc must be considered when calculating the gain GPS 15xH 15xL RF Connection MCX Female connector on t
36. data field and valid fields up to that point will be acted on by the sensor 4 1 4 Almanac Information ALM The GPALM sentence can be used to initialize the GPS sensor s stored almanac information in the event of non volatile memory loss or after storing longer than six months without tracking GPS satellites GPALM lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt lt 10 gt lt 1 1 gt lt 12 gt lt 13 gt lt 14 gt lt 15 gt hh lt CR gt lt LF gt Total number of ALM sentences to be transmitted by the GPS sensor during almanac download This field can be null or any number when sending almanac to the GPS sensor Number of current ALM sentence This field can be null or any number when sending almanac to the GPS sensor Satellite PRN number 01 to 32 GPS week number SV health bits 17 24 of each almanac page Eccentricity Almanac reference time Inclination angle Rate of right ascension Root of semi major axis Omega argument of perigee Longitude of ascension node Mean anomaly af0 clock parameter afl clock parameter GPS 15xH 15xL Technical Specifications Page 9 4 1 2 Sensor Initialization Information PGRMI The PGRMI sentence provides information used to initialize the GPS sensor s last known position and to set the time on the real time clock This information is used by the GPS receiver on the next power cycle to predict which sat
37. e the sensor as it is connected Baud Rate 4800 Nu oes OK i i Garmin Binary Qutput ES 5 Cancel Sensor Configuration F6 Opens the Note Selecting Garmin Binary Output will disable NMEA Sensor Configuration Window shown to the output The device will instead output data in Garmin Binary right Many of the fields in this window Mm should be left alone Please refer to the NMEA Configuration p Commands beginning of this manual for clarification NEA Dui Time Reset Unit about some of these fields This window is NMEA 2 30 Mode rea primarily used to enter a new Latitude Reset Woro Longitude and Altitude for the sensor This Is rule Ps Second PPS Cankianston especially helpful when you are programming Cc HN PPS Length set Autolocate the sensor for use in a particular geographic location PPS Auto Off Mode 100 4 Resetting the Unit Reset Unit performs a r GPS Configuration reset on the unit much like cycling the power Feng Fix Mode Automatic v DeadReckon WGS 84 Valid Time Resetting the non volatile memory Reset DGPS Mode waas ony NonVol will clear all of the data from the 390 see non volatile memory Dif Mode Automatic xl NMEA Sentence Selections F7 Displays Latitude fo o MI INEC UIS the NMEA Sentence Selections Window If Longitude ECW the sentence is enabled a check mark appears in the box to the left of the sentence name Altitude 300 meter C
38. ect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models NMEA 0183 version 1 version 2 20 factory default 2 version 2 30 DGPS WAAS mode A Automatic W WAAS Only R RTCM Only N None DGPS Disabled Power Save Mode P Power Save mode N Normal No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models PPS Auto Off Mode 1 Off 2 On No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models Configuration changes take effect immediately with the exception of Garmin Binary Output which takes effect on the next power cycle or a reset event Send the sentence PGRML R CR LF or PGRMIL R 3F lt CR gt lt LF gt to command a reset refer to 4 1 2 If the GPS sensor is in the Garmin binary data mode it is necessary to send the following eight byte data stream to temporarily change the data format to NMEA 0183 10 0A 02 26 00 CE 10 03 Hexadecimal Follo
39. ellites will be visible in the sky as an aid for more rapid satellite acquisition Receipt of this sentence by the GPS sensor during satellite acquisition causes the software to restart the satellite acquisition process If there are no errors in the sentence it will be echoed upon receipt If an error is detected the echoed PGRMI sentence will contain the current default values Current PGRMI defaults with the exception of the Receiver Command which is a command rather than a mode can also be obtained by sending PGRMIE lt CR gt lt LF gt or PGRMIE 04 lt CR gt lt LF gt to the GPS sensor PGRML lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt hh lt CR gt lt LF gt Latitude ddmm mmm format leading zeros must be transmitted Latitude hemisphere N or S Longitude dddmm mmm format leading zeros must be transmitted Longitude hemisphere E or W Current UTC date ddmmyy format Current UTC time hhmmss format Receiver Command A Auto Locate R Unit Reset 4 1 3 Sensor Configuration Information PGRMC The PGRMC sentence provides information used to configure the GPS sensor s operation Configuration parameters are stored in non volatile memory and retained between power cycles The GPS sensor will echo this sentence upon its receipt if no errors are detected If an error is detected the echoed PGRMC sentence will contain the current default values Current default values can also be obtaine
40. ely identifies that particular Garmin proprietary sentence It is also possible to configure the GPS 15xH 15xL to transmit Garmin binary data over their serial com port 1 interface See Appendix B Garmin Binary Output Format for details The following sections describe the NMEA 0183 data format of each sentence transmitted and received by the GPS 15xH 15xL 4 1 RECEIVED NMEA 0183 SENTENCES The following paragraphs define the sentences that can be received on the GPS sensors port Null fields in the configuration sentence indicate no change in the particular configuration parameter All sentences received by the GPS sensor must be terminated with lt CR gt lt LF gt Please note that lt CR gt and lt LF gt denote the ASCII characters for carriage return 0D hexadecimal and line feed 0A hexadecimal respectively So lt CR gt and lt LF gt are each transmitted as single bytes The checksum hh is used for parity checking data and is not required but is recommended for use in environments containing high electromagnetic noise It is generally not required in normal PC environments When used the parity bytes hh are the ASCII representation of the upper and lower nibbles of the exclusive or XOR parity computed over all of the characters between the and characters non inclusive The hexadecimal representation uses capital letters such as 3D instead of 3d Sentences may be truncated by lt CR gt lt LF gt after any
41. g the status of the GPS sensor This sentence is transmitted once per minute regardless of the selected baud rate PGRMT lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt hh lt CR gt lt LF gt Product model and software version variable length field for example GPS 15xH 15xL VER 2 05 No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models No Effect This field is not used on the GPS 15xH 15xL and is included only for compatibility with other models 4 2 14 3D Velocity Information PGRMV PGRMV lt 1 gt lt 2 gt lt 3 gt hh lt CR gt lt LF gt True east velocity 514 4 to 514 4 meters second True north velocity
42. he GPS 15xH 15xL board Antenna Connection MCX Male connector on the end of the antenna cable GA 25 MCX Garmin Part Number 010 10702 00 provides the required MCX Male connector Other Garmin antennas terminated in a BNC Male connector may also be used if a Garmin MCX to BNC Adapter Cable Garmin Part Number 010 10121 00 is used Place the MCX to BNC Adapter Cable between the connector on the end of the antenna cable and the connector on the GPS 15xH 15xL The total noise on the external antenna should be less than 3 dB with a gain between 10 dB and 30 dB Should be properly biased by your choice of Power from on board source 3 0 Vdc minus the voltage drop across a 7 2 ohm series resistance due to the current drawn by the antenna The antenna must not draw more than 60 mA Power from external source From 3 5 Vdc to 8 0 Vdc bias through the series combination of an on board 5 6 Ohm current sensing resistance a saturated PNP silicon transistor and a Schottky diode The antenna must not draw more than 60 mA The external source of antenna bias voltage should not have any significant noise or interference power in the GPS band 20 MHz bandwidth centered at 1 57542 GHz GPS 15xH 15xL Technical Specifications Page 5 2 GPS 15XH 15XL WIRE DESCRIPTIONS AND WIRING DIAGRAMS The GPS 15xL F and GPS 15xH F use an eight contact flex circuit LIF connector The GPS 15xL W and GPS 15xH W use an eight pin JST connector mating wire harness
43. ic DGPS Mode WAAS Only Differential mode Automatic Dead Reckon Time 30 0 sec Latitude 00 00 000 N 000 00 000 E 300 0 meters Longitude Altitude Earth datum index UGS 84 Selected Sentences GPGGA GPGSA GPGSV GPRMC PGRMT Sensor Configuration i r System Configuration Baud Rate 4800 fai Power Save Mode Garmin Binary Qutput Note Selecting Garmin Binary Output will disable NMEA output The device will instead output data in Garmin Binary format r NMEA Configuration NMEA Output Time me NMEA 2 30 Mode Reset Nona r Pulse Per Second PPS Configuration PPS Length m v Pulse Per Second PPS Auto Off Mode Set Autolocate r GPS Configuration Diff Mode automatic x Latitude fo poo CNC Longitude o o 9 po meter Altitude c Fix Mode automatic Dead Reckon Valid Time DGPS Mode waas Only x 30 se Earth Datum configuration can also be saved for future reference Refer to Appendix F Sensor Configuration Software for complete information about downloading the Sensor Configuration Software application GPS 15xH 15xL Technical Specifications Page 31 APPENDIX F SENSOR CONFIGURATION SOFTWARE SNSRXCFG configures the GPS sensors based on user selected parameters Some application features include the ability to download GPS sensor configuration maintain different configurations in files a
44. included See 1 5 1 3 for details 2 1 GPS 15XH 15XL WIRE DESCRIPTIONS GPS Pin 1 BACKUP This input provides external power to the battery backed SRAM and POWER real time clock This enables the user to provide backup power if needed for longer than the on board rechargeable battery will provide roughly 21 days Input voltage must be between 2 8 and 3 4 Vdc GROUND Power and Signal Ground 3 POWER GPS 15xL 3 3 to 5 4 Vdc 100 mV ripple input Peak operating current is 100 mA Nominal operating current is 85 mA This voltage drives an LDO with a nominal 3 0 Vdc output GPS 15xH Unregulated 8 0 to 40 0 Vdc input Peak operating current is 40 mA 12 Vdc input Nominal operating current is 33 mA 12 Vdc input This voltage drives a switching regulator with a nominal 3 3 Vdc output Although a regulated supply is not required the peak to peak voltage ripple on this line should be kept to less than 100 mV 4 PORT 1 Asynchronous Serial Output DATA OUT RS 232 compatible output normally provides serial data which is formatted per NMEA 0183 Version 2 0 This output is also capable of outputting phase data information see Appendix B Garmin Binary Output Format for details The NMEA 0183 baud rate is selectable in the range of 300 to 38400 baud The default baud rate is 4800 5 PORT 1 First Asynchronous Serial Input DATA IN RS 232 compatible with maximum input voltage range of 25 lt V lt 25 This input may also be directl
45. 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 following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet that is on a different circuit from the receiver e Consult the dealer or an experienced radio TV technician for help This product does not contain any user serviceable parts Repairs should only be made by an authorized Garmin service center Unauthorized repairs or modifications could result in permanent damage to the equipment and void your warranty and your authority to operate this device under Part 15 regulations GPS 15xH 15xL Technical Specifications Page 1 1 2 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 apply to i cosmetic damage such as scratches nicks and dents ii consumable p
46. lick the box to enable or disable the sentence Get Configuration From GPS F8 Retrieves the current programming from the sensor The programming is then displayed in the Main Interface Window Send Configuration To GPS F9 Sends the programming changes you have made to the sensor Switch to NMEA Mode F10 Switches the unit to NMEA 0183 Mode The sensor must be in NMEA 0183 Mode in order to establish a serial connection to this software see Connecting to the Sensor on page 32 Switch to Garmin Mode F11 Switches the unit to Garmin Mode GPS 15xH 15xL Technical Specifications Page 33 View Menu The View Menu allows you to view the NMEA 0183 sentences transmitted by the sensor You can also customize how the program looks by showing and hiding the Toolbar and Status Bar Help Menu The Help Menu displays the software version and copyright information GPS 15xH 15xL Technical Specifications Page 34 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 A GARMIN 2009 Garmin Ltd or its subsidiaries Garmin International Inc 1200 East 151 Street Olathe Kansas 66062 U S A Garmin Europe Ltd Liberty House Hounsdown Business Park Southampton Hampshire SO40 9LR UK Garmin Corporation No 68 Jangshu 2 Road Sijhih Taipei County Taiwan www garmin com Part Number 190 00266 03 Rev A
47. mitted Signal to noise ratio C No 00 to 99 dB leading zeros will be transmitted Note Items lt 4 gt lt 5 gt lt 6 gt and lt 7 gt repeat for each satellite in view to a maximum of four 4 satellites per sentence Additional satellites in view information must be sent in subsequent GPGSV sentences Individual fields may be set to null if the corresponding data is unavailable 4 2 7 Recommended Minimum Specific GPS TRANSIT Data RMC GPRMC lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt lt 8 gt lt 9 gt lt 10 gt lt 11 gt lt 12 gt hh lt CR gt lt LF gt UTC time of position fix hhmmss format Status A Valid position V NAV receiver warning Latitude ddmm mmmm format leading zeros will be transmitted Latitude hemisphere N or S Longitude dddmm mmmm format leading zeros will be transmitted Longitude hemisphere E or W Speed over ground 000 0 to 999 9 knots leading zeros will be transmitted Course over ground 000 0 to 359 9 degrees true leading zeros will be transmitted UTC date of position fix ddmmyy format Magnetic variation 000 0 to 180 0 degrees leading zeros will be transmitted Magnetic variation direction E or W westerly variation adds to true course Mode indicator only output if NMEA 0183 version 2 30 active A Autonomous D Differential E Estimated N Data not valid 4 2 8 Track Made Good and Ground Speed VTG
48. n the position record is enabled Records sent over RS232 begin with a delimiter byte 10 hex The second byte identifies the record type 33 hex for a position record and 72 hex for a satellite data record The third byte indicates the size of the data The fourth byte is the first byte of data The data is then followed by a checksum byte a delimiter byte 10 hex and an end of transmission character 03 hex Additionally any DLEs 0x10 that appear between the delimeters are escaped with a second DLE There is sample code at the end of this section that will strip off the DLEs and ETXs RS232 Packet 0x10 DLE is first byte OX Record ID single byte OX Number of data bytes single byte data bytes See descriptions below Ox 2 s complement of the arithmetic sum of the bytes between the delimiters 0x10 DLE 0x03 ETX is last byte The data bytes of each packet contain the record specified by the record ID A description of each record follows Satellite Data Record The satellite data has a record ID of 0x72 with 84 0x54 data bytes The data bytes contain data for 12 satellites as described below typedef struct uint8 svid space vehicle identification 1 32 and 33 64 for WAAS uint16 snr signal to noise ratio uint8 elev satellite elevation in degrees uint16 azmth satellite azimuth in degrees uint8 status status bit field cpo sat data The status bit
49. nd perform GPS sensor configurations quickly with the use of one function key This section provides a brief overview of the Sensor Configuration Software Refer to this section when using the software to configure your Garmin sensor Downloading the Sensor Configuration Software The Garmin Sensor Configuration Software SNSRXCFG exe is available from the Garmin Web site To download the software start at http www garmin com oem select the 15xH 15xL and then select Software The Garmin Sensor Configuration Software SNSRXCFG exe is included in the software update download Selecting a Model After opening the program SNSRXCFG exe the following screen appears Select the radio button next to the type of Garmin sensor you are configuring and click OK Connecting to the Sensor After selecting the type of sensor the following window opens This is X the Main Interface Screen for the program Serial Pott rs Pate To configure your sensor you must first connect to the sensor com s S 1 Select Config gt Switch to NMEA Mode or press the F10 key Cancel 2 Select Comm gt Setup to open the Comm Setup Window 3 Select the Serial Port to which the sensor is SNSRXCFG GARMIN X Series Sensor Configuration Software connected Select Auto to have the program S cnn CE Benito automatically determine the Baud Rate or select emj sir e S Manual to manually select the Baud Rate of the Configuration file SNSRX
50. o NAPARIMA BWI Trinidad and Tobago NAHRWAN Masirah Island Oman NAHRWAN Saudi Arabia NAHRWAN United Arab Emirates OBSERVATORIO 1966 Corvo and Flores Islands Azores OLD EGYPTIAN Egypt OLD HAWAIIAN Mean Value OMAN Oman GPS 15xH 15xL Technical Specifications Page 19 75 PICO DE LAS NIEVES Canary Islands 76 PITCAIRN ASTRO 1967 Pitcairn Island 77 PUERTO RICO Puerto Rico Virgin Islands 78 QATAR NATIONAL Qatar 79 QORNOQ South Greenland 80 REUNION Mascarene Island 81 ROME 1940 Sardinia Island 82 RT 90 Sweden 83 PROVISIONAL SOUTH AMERICAN 1956 Bolivia Chile Colombia Ecuador Guyana Peru Venezuela 84 SOUTH AMERICAN 1969 Argentina Bolivia Brazil Chile Colombia Ecuador Guyana Paraguay Peru Venezuela Trinidad and Tobago 85 SOUTH ASIA Singapore 86 PROVISIONAL SOUTH CHILEAN 1963 South Chile 87 SANTO DOS Espirito Santo Island 88 SAO BRAZ Sao Miguel Santa Maria Islands Azores 89 SAPPER HILL 1943 East Falkland Island 90 SCHWARZECK Namibia 91 SOUTHEAST BASE Porto Santo and Madeira Islands 92 SOUTHWEST BASE Faial Graciosa Pico Sao Jorge and Terceira Islands Azores 93 TIMBALAI 1948 Brunei and East Malaysia Sarawak and Sabah 94 TOKYO Japan Korea Okinawa 95 TRISTAN ASTRO 1968 Tristan da Cunha 96 User defined earth datum 97 VITI LEVU 1916 Viti Levu Island Fiji Islands 98 WAKE ENIWETOK 1960 Marshall Islands 99 WORLD GEODETIC SYSTEM 1972 100 WORLD GEODETIC SYSTEM 1984 101 ZA
51. o escape it a single DLE followed by an ETX byte means that the end of a packet has been reached To interpret these packets properly remove the escaped DLE bytes This can be achieved using an algorithm similar to the Sample C code fragment on page 23 GPS 15xH 15xL Technical Specifications Page 25 Ephemeris Download Procedure The following is the sequence of events that occurs when downloading ephemeris Send a packet containing the command that requests ephemeris data IOP_DOWN_LOAD EPH The packet should look like this TX Packet Ephemeris Data Request Byte Description Delimiter Command D Pad to 2 Checksum Delimiter End ata ID Number of bytes in data Request to D L ephemeris bytes calculation Name DLE IOP CMND DATA Ei SIZI IOP DOWN LOAD 1 DATA CHKSUM DLE ETX rj a HEX Value 0x10 Ox0A 0x02 0x5D 0x00 Ox97 0x10 0x03 From now on checksum calculation will not be shown for every packet example The unit will return an acknowledgement packet that will look like this RX Packet Acknowledgement Byte Description Delimiter Acknowledgement ID Number of bytes in data Request to D L ephemeris Pad Checksum calculation Delimiter End of packet Name DLE IOP ACK BYTE E SIZ IOP_CMN DATA CHKSUM DLE ETX D DATA HEX Value 0x10 0x06 0x02 Ox0A 0x00 0x10 0x03 Then the unit will immediately send a packet
52. on Name HEX Value Delimiter DLE 0x10 Download Complete ID IOP DL CMPLT 0xOc Number of bytes in data SIZE 0x02 Ephemeris Download ID IOP DOWN LOAD EPH 0x5D Pad DATA 0x00 Checksum calculation CHKSUM E Delimiter DLE 0x10 End of packet ETX 0x03 After properly acknowledging this packet ACK the IOP_DL_CMPLT ID the ephemeris download is complete GPS 15xH 15xL Technical Specifications Page 29 APPENDIX E GPS 15XH 15XL WINDOWS SERIAL MOUSE ISSUE Problem It is possible for Windows to incorrectly interpret the NMEA 0183 output of the GPS 15xH 15xL as the output of a Microsoft Serial BallPoint Mouse When that happens Windows loads drivers for the Serial BallPoint Mouse This causes the cursor to move erratically about the display clicking right clicking double clicking and dragging and dropping displayed items as it goes On Windows 2000 and newer versions of Windows you may not experience the problem if you wait until after the computer is booted before connecting the GPS 15xH 15xL to the serial communications port This problem is not specific to the GPS 15xH 15xL Any NMEA 0183 device connected to a Windows computer s serial port is likely to cause this problem Below are several possible solutions to this problem If you wish to use a different navigation software application with your GPS 15xH 15xL you will need to de select the Garmin Binary Output option that is discussed in Solution 3 below Solution 1 The easiest solution 1s
53. rial differential GPS data formatted per RTCM SC 104 Recommended Standards For Differential Navstar GPS Service Version 2 2 see Section 4 5 for more details Table 1 GPS 15xH 15xL Wire Descriptions GPS 15xH 15xL Technical Specifications Page 6 2 2 GPS 15XH 15XL WIRING DIAGRAMS C AF Power Source Fuse 1A 1 WHITE BACKUP POWER PIN 5 GROUND 2 BLACK GROUND 4 3 RED POWER PIN 3 DATA OUT GPS 15xH amp 15xL 4 YELLOW PORT 1 DATA OUT Power Data Cable H PIN 2 DATA IN 5 BLUE PORT 1 DATA IN 6 ORANGE RF BIAS 7 GRAY PPS 8 GREEN PORT 2 DATA IN Serial Connector Female Pin Contacts Figure 1 Computer Serial Port Interconnection O09 Power Source Fuse 1A 1 WHITE BACKUP POWER 2 BLACK GROUND lc 4 YELLOW PORT 1 DATA OUT 6 ORANGE RF BIAS 7 GRAY PPS 8 GREEN PORT 2 DATA IN PIN 2 DATA OUT PIN 3 DATA IN PIN 5 GROUND GPS 15xH amp 15xL Power Data Cable Serial Connector Male Pin Contacts Figure 2 PDA Serial Port Interconnection Fuse 1A 1 WHITE BACKUP POWER 2 BLACK GROUND DAA OUL 4 YELLOW PORT 1 DATA OUT oaan O gt 6 ORANGE RF BIAS 7 GRAY PPS 8 GREEN PORT 2 DATA IN Figure 3 Basic NMEA Device Interconnection Host Application NMEA Device GPS 15xH amp 15xL Power Data Cable GPS 15xH 15xL Te
54. rovide an MCX female connector for connection to an active GPS antenna The antenna should be terminated in an MCX male connector A suitable antenna is Garmin s GA 25 MCX Garmin Part Number 010 10702 00 Other antennas that are terminated in male BNC connectors may be adapted for use with the GPS 15xH and GPS 15xL series products by using a Garmin MCX to BNC Adapter Cable Garmin Part Number 010 10121 00 GPS 15xH 15xL Technical Specifications Page 3 1 5 2 Electrical Characteristics 1 5 2 1 Input Voltage e GPS 15H 8 0 Vdc to 40 Vdc unregulated e GPSISL 3 3 Vdc to 5 4 Vdc must have less than 100 mV peak to peak ripple 1 5 2 2 Input Current e GPS 15H 60 mA peak 50 mA nominal 8 0 Vdc 40 mA peak 33 mA nominal 12 Vdc 15 mA peak 12 mA nominal 40 Vdc e GPSISL 100 mA peak 85 mA nominal 3 3 to 5 0 Vdc 1 5 2 3 GPS Receiver Sensitivity 185 dBW minimum 1 5 3 Environmental Characteristics e Operating Temperature From 22 to 176 F from 30 to 80 C e Storage Temperature From 40 to 194 F from 40 to 90 C 1 5 4 GPS Performance 1 5 4 1 Receiver WAAS enabled GPS receiver continuously tracks and uses multiple satellites to compute and update your position 1 5 4 2 Acquisition Times e Reacquisition Less than 2 seconds e Hot Approx 1 second all data known e Warm Approx 38 seconds initial position time and almanac known ephemeris unknown e Cold Approx 45 seconds 1 5 4 3 Update Rate 1 secon
55. rporation No 68 Jangshu 2 Road Sijhih Taipei County Taiwan Telephone 886 2 2642 9199 FAX 886 2 2642 9099 www garmin com GPS 15xH 15xL Technical Specifications Page ii TABLE OF CONTENTS 1 VNtrOdu ClO Nsiscccccccccsssiccscscceccssssescensonsecessicssesedbucessssscesesesbenceedesedsonebeduasadecsacessdesensedesoeeel EI GE 8 0 0 ere eh HR ODER p OR a C dep e Dee eee 1 1 2 Eamited Warranty ve ehe RR RR eT ence EUR ee e ER eed ds 2 1 39 OVeEVIeW stet A EAA EA oe da her ht hea oe nid ETE Ite vc Un utrum ios Polus cs dace 3 Id Beat tes sc iioi ista A AE E E on tutte fh o Me a n bac dedos teftc e m b ieee tanto 3 1 5 Technical Specifications eo Re I ea ett ten d qs ees dietus 3 15 1 Physical Characteristics ss ssc agde eet ode eb e debe d dep d doe lite tet eerte 3 1 5 2 Electrical Characteristics eene enne enne nennen entren tnnt entrer tren tenen ernst nnne 4 1 5 3 Environmental Characteristics sss eenr entretenir erret entere entren nnne 4 15 4 GPS Performance aeo e e e ec dote ede i ei de eei Doer i bee dosi E Dra 4 1 5 35 ntetfaCeS sno ere RO De Oed rero d e hcec em ree SES 4 1 5 6 Antenna Specifications irent eret doeet tna dnte tune de hn e ee satcesdesaducevecebdensacubcentesducncebscssenuece 5 2 GPS 15xH 15xL Wire Descriptions and Wiring Diagrams eee 2 1 GPS I5xH 15xL Wire Descriptions ener enne nnne nnne trennen nne 6 2 2 GPS T5xH TI5xL Wining
56. t e Et edat edet 4 2 7 Recommended Minimum Specific GPS TRANSIT Data RMC sesssseeeeeeenee 15 4 2 8 Track Made Good and Ground Speed VTG sese 15 4 2 9 Geographic Position GLL esee ette ether ee etate tatu ocn oae aae ana ena ena o ice bn aine e eae inia ne ns 4 2 10 Estimated Error Information PGRME 4 2 11 GPS Fix Data Sentence PGRME er tiet de teni HERE He RET de TRE Ee Ue tte reped 4 2 12 Map Datum PGRMM ccccceeccsseessesseeeceseeseesecuaecasecseesecuaecnsecseeseceaecaseaeecseeseceaecaaeeseeseesaeesseeseeeseasente 4 2 13 Sensor Status Information PGRMT 4 2 14 3D Velocity Information PGRMV seirn arceri eene ener trennen eren tn et etre trennen 4 2 15 DGPS Beacon Information PGRMB ssseeseeeeeeeeeeen neret nente etre nennen nenne nete trennen Appendix A Earth Datum List eei bos etate tota stzadesteceedesiecacwovsbendesesseeceue LS Appendix B Garmin Binary Output Format eere esee enne eene eeneeeeeee 2 L Appendix C Changing the Baud Rate in Garmin Mode 24 GPS 15xH 15xL Technical Specifications Page iii Appendix D Ephemeris Data download Programming Example 25 SYNOPSIS RR Garmin Binary Format Review sese Ephemeris Download Procedure Appendix E GPS 15xH 15xL Windows Serial Mouse Issue eee 0 Appendix F
57. vice automatically produces navigation data e On board backup battery to maintain the non volatile SRAM and real time clock for up to 21 days e Provision for external power to maintain the charge on the backup battery e Configurable parameters include expected position current time and date and preferred position fix type 2D 3D or automatic 1 5 TECHNICAL SPECIFICATIONS Specifications are subject to change without notice 1 5 1 Physical Characteristics 1 5 1 1 Size 1 400in 35 56 mm wide x 1 805in 45 85 mm long x 0 327in 8 31 mm high 1 5 1 2 Weight e GPS 15xH 0 53 oz 15 0 g e GPSI5xL 0 50oz 14 1 g 1 5 1 3 Available Connector Options GPS 15xH F and GPS 15xL F 8 pin LIF Low Insertion Force flex connector 1 millimeter pitch For use with common 1 mm pitch 8 conductor flex cable available as Garmin Part Number 310 00040 01 This flex cable mates with common 1 mm pitch 8 pin flex connectors such as Garmin part number 330 00346 08 or Molex Part Number 52793 0890 Refer to the Molex Web site at www molex com GPS 15xH W and GPS 15xL W 8 pin JST connector 1 mm pitch Mating wire harness included Garmin Part Number 325 00118 01 The connector housing used on this harness is equivalent to JST Part Number SHR 08V S B The 8 wire crimp socket is equivalent to JST Part Number SSH 003T P0 2 Refer to the JST Web site at www jst com 1 5 1 4 Antenna Connector The GPS 15xH and GPS 15xL series products p
58. w by sending a PGRMCI sentence that turns off the Garmin Binary Output format PGRMC1 1 lt CR gt lt LF gt or PGRMC1 1 4B lt CR gt lt LF gt 4 1 5 Output Sentence Enable Disable PGRMO The PGRMO sentence provides the ability to enable and disable specific output sentences The following sentences are enabled at the factory GPGGA GPGSA GPGSV GPRMC and PGRMT This sentence is not intended for turning on and off sentences as a means of polling while the receiver is in use instead it is intended to allow systems integrators to initialize the GPS receiver so it produces only the sentences required by the target application GPS 15xH 15xL Technical Specifications Page 11 PGRMO lt 1 gt lt 2 gt hh lt CR gt lt LF gt Target sentence description for example PGRMT GPGSV etc Target sentence mode where 0 Disable specified sentence 1 enable specified sentence 2 Disable all output sentences 3 Enable all output sentences except GPALM 4 Restore factory default output sentences The following notes apply to the PGRMO input sentence If the target sentence mode is 2 Disable all 3 Enable all or 4 Restore defaults the target sentence description is not checked for validity In this case an empty field is allowed for example PGRMO 3 or the mode field may contain from 1 to 5 characters If the target sentence mode is 0 Disable or 1 Enable the target senten
59. will transmit the selected sentences contiguously The length of the transmission can be determined by the following equation and Tables 3 and 4 total characters to be transmitted length of transmission characters transmitted per second GPS 15xH 15xL Technical Specifications Page 12 Sentence Output by Default Maximum Characters Once per minute Table 2 NMEA 0183 Output Sentence Order and Size Baud Characters per Second Table 3 Characters per Second for Available Baud Rates The maximum number of fields allowed in a single sentence is 82 characters including delimiters Values in the table include the sentence start delimiter character and the termination delimiter lt CR gt lt LF gt The factory set defaults result in a once per second transmission at the NMEA 0183 specification transmission rate of 4800 baud 4 2 3 Transmitted Time The GPS sensor outputs Coordinated Universal Time UTC date and time of day in the transmitted sentences Before the initial position fix the on board clock provides the date and time of day After the initial position fix the date and time of day are calculated using GPS satellite information and are synchronized with the closest UTC second boundary The GPS sensor uses information obtained from the GPS satellites to add or delete UTC leap seconds and correct the transmitted date and time
60. y connected to standard 3 to 5 Vdc CMOS logic that uses RS 232 polarity The low signal voltage requirement is lt 0 6 Vdc and the high signal voltage requirement is gt 2 4 V Minimum load impedance is 500 O This input may be used to receive serial initialization configuration data as specified in Section 4 1 Received NMEA 0183 Sentences This input allows the user to externally apply an RF bias to the active antenna By default the unit will use an internal voltage to power the active antenna If an external voltage greater than the internal voltage of the center pin of the antenna between 3 5 Vdc and 8 0 Vdc is detected at this input the GPS 15xH 15xL will automatically changes to the external voltage The antenna must not draw more than 60 mA Measurement Pulse Output Typical voltage rise and fall times are 300 ns Impedance is 150 O Open circuit output voltage is low 0 Vdc and high Vin in the GPS 15xL and low 0 Vdc and high 5 0 Vdc in the GPS 15xH The default format is a 100 ms wide active high pulse at a 1 Hz rate the pulse width is configurable in 20 ms increments The rising edge is synchronized to the start of each GPS second This output provides between 800 mVp p to 1 7 Vp p for GPS 15xL and 1 4 Vp p for the GPS 15xH into a 50 Q load The pulse time measured at the 5096 voltage point will be about 50 ns earlier with a 50 Q load than with no load Second Serial Asynchronous Input This input may be used to receive se

GPS 15xH/15xL TECHNICAL SPECIFICATIONS

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