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Furuno FR-2125V Radar Detector User Manual

1. 4 The NAV INFORMATION 1 menu appears by pressing the NAV MENU key at the Radar only display mode VIDEO PLOTTER INITIAL SETTING 1 VIDEO PLOTTER 2 2 DANGER HIGHLIGHT OFF ON 3 COAST LINE OFF ON NAV MENU Key 4 LAND DENSITY OFF ON y with RP 26 5 PLACE NAME OFF ON NAV INFORMATION 1 1 VIDEO PLOTTER 1 7 OWN SHIP PLOT OFF ON 1 VIDEO PLOTTER 1 1 NAV INFORMATION 1 8 TARGET PLOT OFF ON 2 SELECT NAVAID GPS DEAD RECKONING 2 WAY POINT 9 CONTOUR LINE OFF ON 3 OWN SHIP POSN OFF L L 3 NAV LINE 0 GRID OFF ON 4 POSN 00 00 000N S 4 ENTER WPT NAV LINE 00 00 000 E W 5 OWN SHIP TARGET PLOT 5 CURSOR DATA OFF REL TRUE 6 CARD REPLAY RECORD 6 WPT DATA 7RADARMAP OFF ON 7 LINE 8 DISPLAY SELECT 8 WAY POINT 9 ERASE 9 WIND DATA OFF ON 0 VIDEO PLOTTER 2 0 NAV INFORMATION 2 T Y VIDEO PLOTTER 2 0 1 VIDEO PLOTTER 1 2 NAV DATA POSN 3 ALIGN DATA OFF ON NAV INFORMATION 2 1 NAV INFORMATION 1 OWN SHIP CENTER 2 WIND GRAPH OFF ON 4 6 MARK ENTRY MODE CURSOR OWN SHIP POSN L L 3 WIND UNIT m s KT 7 TRAIL EAV LOG GYRO SOUHHENT DATA QEF ON 8 VIDEO PLOTTER INITIAL SETTING 5 CURRENT GRAPH OFF ON 3i 6 DEPTH DATA OFF ON 7 DEPTH
2. Serious injury or death can result if someone falls from the radar antenna mast Display unit inside view 4 1 4 1 Easy Troubleshooting This section provides easy troubleshooting for the user Table 4 1 Easy troubleshooting Problem Remedy No own ship marker Check that OS MARK ON is selected at the MARK LINE submenu in the OTHER menu Also own ship information length width etc should have been entered in initial settings Consult a FURUNO representative or dealer for details 4 2 Advanced level Troubleshooting This paragraph provides information for the service technician to cure hardware and soft ware problems This radar equipment contains complex modules in which fault diagnosis and repair down to component level are not possible by users Table 4 2 Advanced level troubleshooting table Problem Check point and Remedy probable cause Power turned on but radar 1 Blown fuse F1 or F2 1 Replace blown fuse does not operate at all 2 Mains voltage polarity 2 Correct wirings and input Control panel is not 3 Power Supply Board voltage illuminated either 4 Illumination lamps 3 Replace Power Supply Board 4 Replace defective lam
3. 4 IF Amplifier 60 MHz Logarithmic 5 Duplexer Ferrite circulator with diode limiter 6 Noise Figure 6 dB 7 Spurious Response 40 dB EE MP 3 RADAR DISPLAY 1 Picture Tube 21 color CRT Effective radar dia 275 mm Yellow or green echoes in 16 levels or 16 colors Different color for VRM range rings alarms etc 2 Scanning Raster scan at scanning frequency 61 44 kHz horizontal 60 kHz vertical Number of scanning lines 1024 non interlaced 3 Minimum Range 25m SP 1 4 3 6 7 8 9 10 Variable Range Markers Range Scales and Ring Intervals Range Accuracy Range Discrimination Bearing Accuracy Bearing Discrimination Presentation modes 11 Offcenter 12 Guard Zone 13 Electronic Plotting Aids EPA 14 Parallel Index Lines 4 INTERFACE 1 Q 3 External Radar option Gyrocompass Speed Log 5 POWER SUPPLY 1 Q DC Source AC Source 0 125 0 25 0 5 0 75 1 1 5 2 3 4 6 8 12 16 24 32 48 96 0 025 0 05 0 1 0 25 0 2 0 25 0 5 0 5 1 1 2 2 4 8 8 12 12 1 of range in use or 15 m whichever is the greater 25m 1 2 5 Head up Head up TB North up Course up True Motion North up Heading signal required except for HU Two Variable Range Markers switched Sweep origin can be offcentered by 50 of range in use in any direction Not available for maximum range Anywhere above 0 7 SM 10 Targe
4. HDG 123 4 T GYRO SPEED 14 8KT WT LOG 020 ANT1 MAIN SET amp DRIFT No 1 VRM No 2 VRM Wind data from ext equipment Zoom X band A C AUTO Noise Rej Off center No 1 EBL bearing No 2 EBL bearing DATA DISPLAY See next page 230 ZOOWM220 X BAND AC Aeon TRUE TRAIL NOISE REJ 200 160 eee OFFCENTER 190 170 SU UE TGT ALARM 2 EBL WATCH 5 30 VRM 044 4 T INDEX gt 0 6008 lt gt 130 1 T gt 236 8 lt 0 1505 Parallel Index Lines Orientation Watch Stern Marker Figure 1 5 On screen legends and markers Tuning Bar Heading Speed Source Speed Antenna Display in use Set amp Drift Fixed Range Rings No 1 EBL No 2 EBL Depth data from ext equipment North Marker Target Trail Trail Time Time Elapsed Target Alarm No 1 VRM range No 2 VRM range Note With the serial speed inputs and SOG selection if the type of data is changed from SOG to STW the label SOG appears in red at the upper right corner on the screen 1 6 P 0 03 RNG 0 4395 DEPTH 21 1m BRG 122 7T CURRENT 1 2KT T 01 CSE 254 2 T BT TRU 105 7 T Nav Data Target 2 SPD 149KT BTTRU WIND 11 3KT Data CPA 0 45 285 6 0 0MIN Range and bearing BCR 0 8SM 01 0 1018M from origin mark to C BCT gt 99 9MIN 254 3 T cursor EPA WPT 12 150 85M Range and Bearing EP
5. 1 29 2 Press the ENTER key to confirm your selection 3 Press the PLOT MENU key to close the menu The vector tip shows an estimated position of the target after the selected vector time elapses It can be valuable to ex tend the vector length to evaluate the risk of collision with any target 1 25 4 Target data The radar calculates motion trends range bearing course speed CPA and TCPA of all plotted targets In the head up and head up true bearing modes target bearing course and speed shown in the upper right target data field become true T relative to north or relative R relative to own ship in accordance with true relative vector setting In the north up course up and True Motion modes the target data field always displays true bearing true course and speed over the ground Reading the target data Press the ACQ key and corresponding numeric key and the following target data is displayed RNG BRG Range Bearing Range and bearing from own ship to last plotted target with suffix T True or R Relative plot symbol CSE SPD Course Speed Course and speed are displayed for the last plotted target with the suffix T True or R Relative plot symbol CPA TCPA CPA Closest Point of Approach is the closest range a target will approach to own ship TCPA is the Time to CPA Both CPA and TCPA are automatically calculated TCPA is counted up to 99 9 minutes and beyond this it is indicated as TCP
6. TING menu is displayed AUTO ACQ AREA SET 1 ARPA 1 2 1 2 Figure 5 6 AUTO ACQ AHEA SET menu Press the 2 key to select menu item 1 2 and press the ENTER key Then you will see the message as shown below AUTO ACQ SETTING 1 ARPA 1 2 1 2 Figure 5 7 AUTO ACQ SETTING menu Place the cursor at the outer counterclockwise corner of the area point A and press the ENTER key Place the cursor at the clockwise edge of the area point B and press the ENTER key Note If you wish to create an auto acquisition area having a 360 degree coverage around own ship set point B in almost the same direction approx 5 as point A and press the ENTER key 8 Repeat steps 5 to 7 above if you want to set another auto acquisition area with the trackball 9 Press the 1 key followed by the PLOT MENU key to close the ARPA 1 menu An auto acquisition area like the example shown in Figure 5 5 appears on the display Note that each auto acquisition area has a fixed radial extension width of 0 5 1 0 nm Note that the auto acquisition areas are preserved in an internal memory of the ARPA even when auto acquisition is disabled or the ARPA is turned off 5 5 3 Terminating tracking of targets When the ARPA has acquired 20 targets automatically the message AUTO TARGET FULL is displayed at the screen center and no more auto acquisition occurs unless targets are lost You may find this message bef
7. 90 0 T 10 0 1 0 10 4 n a 2 oe TargetB 0 0 T 0 0 4 0 5 7 Sm Target C 180 0 T 10 0 1 7 28 2 br x Target D 2165 23 8 0 9 15 0 20 zu Target E 278 5 T 142 6 0 22 5 e fre TargetF 180 0 20 0 0 0 30 0 PS f Target G 246 T 15 6 4 0 43 6 Wu sce Figure 5 16 ARPA performance test values Note Target numbers are subject to change If test results show any deviation from the above consult with your service representative 5 24 5 18 Criteria for Selecting Targets for Tracking The FURUNO ARPA video processor detects targets in midst of noise and discriminates radar echoes on the basis of their size Target whose echo measurements are greater than those of the largest ship in range or tangential extent are usually land and are dis played only as normal radar video All smaller ship sized echoes which are less than this dimension are further analyzed and regarded as ships and displayed as small circles superimposed over the video echo When a target is first displayed it is shown as having zero true speed but develops a course vector as more information is collected In accordance with the International Ma rine Organization Automatic Radar Plotting Aid IMO ARPA requirements an indication of the motion trend should be available within 20 scans of antenna and full vector accuracy within 60 scans The FURUNO ARPAs comply with these requirements 5 18 1 Acquisition and tracking A target which
8. Press the Transmit switch labeled STBY TX for transmit condition Note This equipment has a self diagnostic function to check operational software periodically If any trouble has been found the ERROR lamp lights In this case do the above procedure 1 2 1 3 Control Head A C RAIN Suppresses clutter from rain snow clouds A C SEA BRILLIANCE Adjusts the brightness of entire screen Suppresses sea clutter to improve the short range discrimination AUDIO OFF Acknowledges audible alarms no effect on visual alarms RADAR MENU Sets various parameters for radar operation and radar map NAV MENU Sets parameters for nav info PLOT MENU for plotting GAIN Adjusts the radar sensitivity RADAR PLOT NAV MENU MENU MENU f AN m ERR PANEL 3 4 bey OFF BRILL e 1J lolz GLEJ Q 52 CACRAN GAIN cres vector frisser EN 4 5 6 CHART Sian MARK _ es Cat Ce 99691165 RANBE VAM TARGET cancel ENTER CANCEL DA CN 2 EBL Control EBL ON OFF Keys Pressing ON key toggles between No 1 and No 2 EBLs FUNCTION Keys 1 Set up 1 2 Set up 2 VRM Control TRACKBALL VRM ON OFF Keys Shifts the cursor for plotting Pressing ON
9. after acquisition a vector appears to show a trend of movement c Within 60 scans or 3 min of the antenna Qf after acquisition the plot symbol changes to a small circle indicating steady state tracking condition Notes on manual acquisition 1 For successful acquisition the target to be acquired should be within 0 2 to 32 nm from own ship and not obscured by sea or rain clutter 2 When you have acquired 30 targets manually the message MAN TARGET FULL is displayed at the screen bottom Cancel tracking of non threatening targets if you wish to acquire additional targets manually See 5 5 3 Terminating tracking of acquired targets on page 5 9 A CAUTION TARGET SWAP A target measuring 800 m or more in the radial or circumferential direction is When a target being tracked nears regarded as a landmass and not another target being tracked the targets acquired or tracked Echoes smaller may be swapped When two targets than 800 m are regarded as targets to be acquired either automatically or manu tracked ally come close to each other one of the two may become a Lost Target Should this happen manual re acquisition of the Lost Target may be required after the two have separated 5 7 Changing Plot Symbol Size Plot Symbols 5 7 1 Changing plot symbol size To choose a large or standard size for all plot symbols 1 Press the PLOT MENU key followed by the 0 key to show the ARPA 2 menu 2 Press the 6 key t
10. or other stationary targets Thus the speed and course of own ship over the ground are reciprocally calculated and compared with the relative bearing and range to the reference target to produce a Set and Drift These values are automatically applied to all targets If stationary targets have vectors set and drift values should be adjusted until they lose their vectors To enter set and drift rate 1 Press the RADAR MENU key to show the FUNCTIONS 1 menu 2 Press the 0 key to show the FUNCTIONS 2 menu 3 Press the 7 key to select SET DRIFT 4 Further press the 7 key to select OFF or MAN OFF No correction against set and drift MAN Manual entry of set and drift data 5 If OFF is selected at step 4 above press the ENTER key 6 If you selected MAN in step 4 above the highlight cursor will advance to the right requesting you to enter SET 000 0 Enter the value of set in degrees by hitting nu meric keys without omitting leading zeroes if any and press the ENTER key The highlight cursor will then advance to the next line DRIFT 00 0KT Enter the value of drift in knots by hitting numeric keys without omitting leading zeroes if any and press the ENTER key Set and drift have the same effect on own ship and all targets 7 Press the RADAR MENU key to close the menu The label LOG or NAV changes to WT Water Tracking or BT Bottom Tracking Set and drift data can also be used in the basic radar without ARP
11. to the cursor position Press the EBL OFFSET key again to anchor the EBL origin 4 After waiting for a few minutes at least 3 minutes operate the EBL control until the EBL bisects the target at the new position At The EBL readout shows the target ship s course which may be true or relative depending on the settings on the RADAR 1 menu If relative motion is selected it is also possible to read CPA Closest Point of Approach by using a VRM as shown below Figure a If the EBL passes through the sweep origin own ship as illustrated Figure b the target ship is on a collision course 5 To return the EBL origin to the own ship s position press the EBL OFFSET key again 020 000 350 010 020 340 350 Sfi 010 330 ati 030 330 T ii mni 030 TA mm lu 320 i 040 SS my 040 NS 2 NS 310 2 050 810 a 050 x 2 S 300 A 060 300 A 060 2 gt N 2 5 e 3 290 e 070 290 s a 070 4 280 3 AUS 2 080 280 5 X 2_ 080 270 lt 090 270 Z 090 Z 260 2 gt 100 100 A E 240 amp 240 x Q SS 130 7 SW 180 No 1 EBL w is No 1 EBL P EBL 210 nou 150 EBL 210 oo mpm s 150 gt 150 3 R lt gt 150 3 R lt UNS a Evaluating course of target ship in RM b Target ship on collision course Figure 1 22 Collision assessment with the offset EBL 1 21 1 20 Measuring Range and B
12. 0 key Figure 4 1 Keying sequence for diagnostic test The test program checks the logic boards and the keyboard The squares represent the corresponding keypads Numerals indicate the position of the controls under check ROM test RAM test CRAM test FR 2105V TEST SPU Board 03P9253 Program No PROGRAMNO ROM CRAM DIPSW DIP SW S1 No 1234 No 1 at left ARP Board 03591570 OK OK 18P9002 gt 18590381 OK OK 1101 ARP Board 18P9002 s Program No 18590391 OK DIP SW S1 setting 08590941 OK OK 1111 0 ON RP Board DRAM OK 1 OFF 14P0298 RPBOARDBAT OK Proaram No RP CARD 1 OK CARD 2 OK CARD1BAT OK CARD2BAT ep Si eon Program ANTENNASPEED 23 8RPM EG Version No TRIG FREQ 1005Hz E ec id A To escape from diagnostic TUNE IND test press STBY TX key ia twice EBL check Rightward increases Trackball check leftward decreases VRM check e Up movement and indication Performance monitor and Rightward increases Rightward increases leftward degauss switches check leftward decreases decreases e Down movement and indication Key and control check Upward increases downward BRILLIANCE A C RAIN A C SEA GAIN cannot be checked decreases Figure 4 2 Diagnostic test results Test pattern A test pattern may be overlaid on the test results display by pressing the STBY TX key once at the test results display 5 ARPA ARP 26 Option for NM type radar 5 1 General This
13. 2 Press the 6 key to select PULSE WIDTH 1 or 2 as appropriate 3 Press the RADAR MENU key to close the FUNCTIONS 1 menu Table 1 1 Available pulsewidths Label Pulsewidth S1 Short pulse 1 0 07 us S2 Short pulse 2 0 15 us M1 Medium pulse 1 0 3 us M2 Medium pulse 2 0 5 us M3 Medium pulse 3 0 7 us L Long pulse 1 2 us 1 12 2 Presetting pulsewidth 1 and 2 Pulsewidth 1 and 2 can be preset on the PULSE WD 1 and 2 menus Shown below are examples of the pulsewidth setup procedure 1 To enable selection of S1 0 07 us and S2 0 15 us pulsewidth on the 0 5 SM range select 51 at 0 5 SM on the PULSE WD 1 menu and S2 at 0 5 SM on the PULSEWIDTH 2 menu 2 To enable selection of S2 0 15 ms and M1 0 3 ms pulsewidth on the 3 SM range select S2 at 3 SM in the PULSE WD 1 menu and M1 at 3 SM in the PULSE WD 2 menu A longer pulse provides an increased detection range but with reduced discrimination If you need discrimination in preference to detection choose a shorter pulse Example To select S1 0 07 ms as Pulsewidth 1 for the 0 5 SM range display the PULSE WIDTH 1 menu following the steps shown above and hit the 2 key to choose 0 5 SM Further hit the 2 key until the menu option S1 is highlighted to the right of 0 5 SM RADAR MENU key FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 3 ORIGIN MARK 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VID
14. 3 Press the 3 key to select BARGE SIZE and enter length and width of a barge fol lowed by the ENTER key 4 Press the 4 key to display the BARGE INFORMATION menu 5 Enter number of barges in first row followed by the ENTER key 6 Enter the number of barges for 2nd 3rd 4th and or 5th row followed by the ENTER key The barge information appears on the radar display 1 35 Radar Map A radar map is a combination of map lines and symbols whereby the user can define and input the navigation route planning and monitoring data on the radar equipment Map lines are a navigational facility whereby the observer can define lines to indicate channels or traffic separation schemes Also called nav lines these lines can be ground stabilized to stop them drifting Definition in Annex C of IEC 60936 1 and IEC 60872 1 In this series of radar a radar map may contain 150 points of mark and line data on one map 10 maps can the memorized to facilitate the repeated use on the routine navigation area The user can create a radar map on a real time basis while using the radar for navigation or at leisure time at anchor or while the radar is not being used Place of a map can be made for any waterways apart from the actual own ship location The map data is stored on the EEROM card which is mounted on the main processor board socket When the optional Video Plotter board RP 26 and RAM card are installed in the display unit much more data can be
15. 3 ORIGIN MARK 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 0 key 1 key FUNCTIONS 2 1 FUNCTIONS 1 2BKGD COLOR BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECHO STRETCH OFF 1 2 3 4 ECHO AVERAGE OFF 1 2 3 5ECHO COLOR YEL GRN COLOR 6 SHIP SPEED LOG NAV MAN MAN 00 0KT STW SOG 7 SET DRIFT OFF MAN SET 000 0 DRIFT 00 0KT 8 INDEX LINES NO 2 VRM MAN MAN 00 00 SM 9 BRILLIANCE 1 0 FUNCTIONS 3 0 key 1 key FUNCTIONS 3 1 FUNCTIONS 2 2 key 2 RADAR 1 3 FUNCTION KEY 1 4 FUNCTION KEY 2 5 FUNCTION KEY 3 6 FUNCTION KEY 4 7 RADAR 1 1 2 8 ES SWITCH Select 2 for connecting to antenna No 2 on dual radar 9 GYRO SETTING installation EBL xxx x 0 FUNCTIONS 4 RADAR 1 1 FUNCTIONS 3 2 EBL 1 REL TRUE 3 EBL2 REL TRUE 4 VRM 1 3 NM km 5 VRM 2 3 NM km 6 TRAIL REL TRUE 7 TRAIL SGL MULT 8 PULSE WD 1 9 PULSE WD 2 0 RADAR 2 0 key RADAR 2 1 RADAR 1 2 CURSOR REL TRUE 3 NOISE REJ OFF ON 4STERNMK OFF ON 5 SHIP S MK OFF ON 6 ALARM 2 IN OUT 7 KEY BEEP OFF M L H 8 AUDIO ALARM OFF M L H 92NDECHO OFF ON 0 RADAR 3 0 key RADAR 3 1 RADAR 2 2 BARGE MK OFF ON 3 BARGE SIZE LENGTH 000 ft WIDTH 00 ft 4 BARGE INFORMATION 5 ORIGIN MK DISP NO SYMBOL 6 ORIGIN MK STAB GND SEA 7 ANTENN
16. 5 knots 0 4 5 ENTER 6 Press the RADAR MENU key to close the FUNCTIONS 2 menu The ship speed readout at the screen top shows own ship s speed you entered preceded by the label MAN 5 4 3 Target based speed The use of target based speed is recommended when The speed log is not operating properly or not connected to the radar The vessel has no device which can measure ship s leeward movement Doppler so nar speed log etc when leeward movement can not be disregarded If you select target based speed the ARP 26 calculates own ship s speed relative to a fixed refer ence target The number of targets may be 1 2 or 3 They appear as tracked targets each shown in a small circle but without a vector When a plural of objects are se lected the mean value is used for stabilization and speed Select the number in the PLOT MENU referring to paragraph 5 3 2 1 Select a small fixed island or any radar prominent point located at 0 2 to 24 nm from own ship 2 Place the cursor on the target by operating the trackball 3 Press the PLOT MENU key and the 6 key followed by the ENTER key The reference target mark see below appears at the cursor position and the own ship data label changes from LOG NAV or MAN to REF Note that it takes 60 scans or approximately one minute before a new speed is displayed If tracking has failed for a reference target the target is marked with a lost targ
17. 6 Menu tree A 1 A 6 MODE key 1 10 Multiple echoes 2 3 Index 1 N Nav data display 1 52 NAV MENU key 1 38 Navigation line display 1 50 North marker 1 37 North up mode 1 12 O OFF CENTER key 1 25 Off centering 1 25 Origin mark attaching ID number symbol 1 37 inscribing 1 36 Own ship symbol 1 38 P PLOT MENU key 1 38 POWER switch 1 1 Precipitation clutter suppression 1 17 Presentation mode 1 10 1 12 Pulsewidth 1 13 1 14 Q Quick start 1 2 R Racon 2 7 Radar map 1 46 1 50 RADAR MENU key 1 38 Range and bearing between two targets 1 22 RANGE keys 4 1 13 Range measurement 1 18 1 19 Range ring brilliance 1 18 Range scale 1 13 Rate of turn scale 1 53 S SART Search and Rescue Transponder 2 5 Sea clutter suppression 1 16 Second trace echoes 1 50 Sensitivity 1 15 Shadow sector 2 4 Sidelobe echoes 2 3 Speed input 1 9 1 10 STBY TX key 1 2 Stern marker 1 37 T Target alarm zone 1 23 acknowledging alarm 1 24 deactivating 1 24 inward and outward alarms 1 24 setting 1 23 silencing audible alarm 1 24 TARGET CANCEL key 1 30 Target trails 1 32 1 34 displaying 1 33 erasing 1 33 relative trails 1 32 resetting 1 34 trail gradation 1 33 true trails 1 32 TARGET TRAILS CANCEL key 1 34 Troubleshooting 4 1 4 6 advanced 4 2 Diagnostic test 4 4 easy 4 2 True motion mode 1 12 TUNE control 1 5 Tuning 1 5 V VECTOR key 1 29 Video plotter RP 26 6 1 6 17 chart positio
18. ARPA instead of EPA The label ARPA appears at the screen center 5 3 2 Setting ARPA parameters Various parameters for the ARPA are set on the ARPA 1 and ARPA 2 menus To do this follow the steps shown below 1 Press the PLOT MENU key to show the ARPA 1 menu 2 Press the 0 key once if you wish to go to the ARPA 2 menu 3 4 Select a desired menu item by pressing the corresponding numeric key Select a menu option by pressing the same numeric key as pressed in step 3 above If there is more than one option on the current menu item you may need to press the numeric key several times Press it until the desired option is highlighted Note that certain menu items will prompt you to enter numeric data or to define points on the radar screen with the trackball Press the ENTER key to register settings Press the PLOT MENU key to close the menu ARPA 1 1 VECTOR TIME 30SEC 1 2 3 6 12 15 30MIN 2 AUTO ACQ OFF ON 3 AUTO ACQ AREA 3 6 SET 4 GUARD ZONE OFF ON 5 GUARD ZONE SET 6 TARGET BASED SPEED 7 REFERENCE TARGET OFF ON 8 COLLISION ALARM CPA 0 0 TCPA 00 0MIN 9 TRIAL MANEUVER 0 ARPA 2 Set opens the AUTO ACQ AREA SET sub menu which reads 1 ARPA 1 2 1 2 SET LEFT RIGHT BOUNDARY CANCEL PREVIOUS AREA CANCEL ARPA 2 1 ARPA 1 2 TRIAL MODE STATIC DYNAMIC KEY 3 HISTORY OFF ON 4 HISTORY POINTS 5 10 20 5 HISTORY INTERVAL 30SEC 1 2 3 6MIN GUARD ZONE SET Thi
19. Figure 1 30 Sample EPA display Target 01 in Figure 1 30 is on a collision course as the extension of the vector goes through the own ship position Placing the offset EBL on the target will be a help for assessment TCPA is counted up to 99 9 minutes and beyond this it is indicated as TCPA gt 99 9 MIN Note EPA requires speed input automatic or manual and a heading signal The vector and data are updated automatically every 1 2 scenes between plot entries but do not neglect to plot a new position over a long period of time The accuracy will be reduced Note the plots will be lost when the gyrocompass fails start the plotting exercise again 1 28 1 25 1 Plotting a target To perform electronic plotting 1 Place the cursor on a target of interest by operating the trackball 2 Press the ACQ key and one of numeric keys and the plot symbol with number ap pears at the cursor position 3 Watching the EPA time shown at the screen center wait for at least 30 seconds Place the cursor on the target at its new location press the ACQ key and the same numeric key for the target The plot symbol moves to the new target position and previous position is marked by a small dot 4 To acquire other targets repeat the above steps selecting a different plot number Note If a target once plotted is not plotted again within 10 minutes the warning UPDATE PLOT will appear in red on the bottom of the screen and the plot symbo
20. GRAPH OFF ON Y 8 DEPTH SCALE 10 20 50 100 OWN SHIP TARGET PLOT 200 500 Le ENTER WPT NAV LINE 1 VIDEO PLOTTER 1 9 DEPTH UNIT mitt 1 VIDEO PLOTTER 1 2 RECORD OWN SHIP PLOT OFF ON OINA INFORMATION 3 2 ENTER WPT OWN SHIP PLOT INTVL 10 30SEC 1 2 3 6MIN 0 2 3 LIST 4 OWN SHIP PLOT COLOR RED MAGENTA YEL 14 GRN CYAN BLU 5 ENTER NAVLINE 5 RECORD TARGET PLOT OFF ON __ NAV INFORMATION 3 6 NAV LINE LIST 6 TARGET PLOTINTVL 10 305 1 2 3 6 1 NAV INFORMATION 2 7 SWATERTEMPERATUHE OFF ON 8 SMOOTHING OFF 1 2 3 6 7 8 9 3 DATE OFF UTC LOCAL 00 0H 4 USER CHART OFF ON ale LOTTER i 5 CURVED EBL OFF ON 2 2 2 FILE 6 CHART SYMBOL OFF ON 7 NOTEBOOK OFF ON i FEILE 200000000 4 FILE XXXXXXXXXX ENTER NAV LINE 5 FILE XXXXXXXXXX Y 1 ENTER WPT NAV LINE 6 FILE 2 NAV LINE ON 7 FILE ENTER WPT WPT gt 23 b 8 FILE XXXXXXXXXX 1 ENTER WPT NAV LINE EXEC 9 FILE XXXXXXXXXX 2 ENTER WPT CURSOR L L OWN SHIP POSN 5 cL 3 WPT NO 00 MEE 00 00 000N S Me 000 00 000E W 2 i pal RECORD mE a 1 VIDEO PLOTTER 1 zx uA 20WNSHIPPLOT T 3 3 TARGET PLOT A WPT LIST 1 5 RADAS MAE R ENTER WET NY EINE 8 ADDING WPTXX 3XX 6 00 XX XX XXXN 9DESELECTING WPTXX 9 01 XX XXX XX XXXE 0 FORMAT NO YES 02 XXX XX XXXE i 03 XX XX XXXN
21. If the gyrocompass fails the mode is changed to the head up and the north marker disappears The HDG readout shows asterisks 340 350 000 010 020 030 a True motion selected b Own ship has reached a point 50 of display radius 75 in case of NM type radar 1 12 Target trail 340 350 000 010 020 030 340 350 000 010 020 d c Own ship is automatically reset to 50 of radius 1 11 Selecting the Range Scale The display range scale is changed by pressing the and keys The selected range scale and range ring interval are shown at the upper left corner on the screen When a target of interest comes closer reduce the range scale so that it appears in 50 90 of the display radius The range scales are 0 25 0 5 0 75 1 1 5 2 3 4 6 8 12 16 24 32 48 96 SM 1 12 Selecting the Pulsewidth The pulsewidth in use is displayed at the upper left hand position of the screen using the abbreviations shown in the table below Appropriate pulsewidths are preset to individual range scales and function keys There fore you are not usually required to select them If you are not satisfied with the current pulsewidth settings however it is possible to change them on the RADAR 1 menu as shown in paragraph 1 12 2 You can choose the pulsewidth 1 or 2 on the scales 0 5 to 24 SM ranges 1 12 1 Selecting pulsewidth 1 or 2 1 Press the RADAR MENU key to display the FUNCTIONS 1 menu
22. OFF 1 2 3 OFF 1 2 3 YEL GRN COLOR LOG NAV MAN MAN xx xKT STW SOG OFF MAN SET 000 0 DRIFT 00 0KT NO 2 VRM MAN MAN 00 00SM 7 SET DRIFT 8 INDEX LINES 9 BRILLIANCE 1 0 FUNCTIONS 3 0 FUNCTIONS 3 1 FUNCTIONS 2 2 RADAR 1 3 FUNCTION KEY 1 4 FUNCTION KEY 2 6 6 5 FUNCTION KEY 3 6 FUNCTION KEY 4 7 RADAR 1 2 8 INTER SWITCH 9 GYRO SETTING EBL xxx x 0 FUNCTIONS 4 gt 2 FUNC KEY4 FUNCTION KEY 4 1 FUNCTIONS 3 2 FUNC KEY4 3 OPERATION TARGET TRAILS TARGET ALARM ARPA VIDEO PLOT ZOOM BKGD COLOR INDEX LINES INT REJECT 2ND ECHO ORIGIN MARK PLS WD1 PLS WD 2 ECHO STRETCH 1 2 3 ECHO AVG 1 2 3 ECHO COLOR CHAR BRILL MARK BRILL TRAIL BRILL RINGS BRILL EBL BRILL VRM BRILL CURSOR BRILL HL BRILL PLOT BRILL L L BRILL CHART BRILL NOISE REJECT BARGE MK BARGE CONFIGURATION OPR OPERATION WATCH ALARM Press 2 once or twice to toggle between OPERATION and WATCH ALARM followed by ENTER key FUNCTION KEY 4 1 FUNCTIONS 3 WATCH ALARM OPERATION WATCH ALARM 3 WATCH ALARM INTERVAL 6 10 12 15 20 MIN Figure 1 44 Keying sequence for setting functions keys 4 1 45 1 34 Barge Information Do the following to display the barge information 1 Press RADAR MENU 0 0 2 0 and 0 to display the RADAR 3 menu 2 Press the 2 key twice to select BARGE MK ON followed by the ENTER key
23. RED CHAR BLU ECHO AREA BLU BRT BLU OFF 1 2 3 OFF 1 2 3 YEL GRN COLOR LOG NAV MAN MAN 00 0KT STW SOG OFF MAN SET 000 0 DRIFT 00 0KT NO 2 VRM MAN MAN 00 00NM 0 key 3 FUNCTION KEY 1 4 FUNCTION KEY 2 5 FUNCTION KEY 3 6 FUNCTION KEY 4 7RADAR 1 2 8 INTER SWITCH 9 GYRO SETTING 0 FUNCTIONS 4 3 4 or 5 key FUNCTION KEY 1 PICT 1 FUNCTIONS 3 2 FUNC KEY1 3 PICTURE PICTURE OPERATION FUNC1 BUOY SHIP SHORT LONG CRUISING HARBOR COAST SEA ROUGH SEA RIVER BIRD OFF 1 2 3 OFF 1 2 3 OFF 1 2 3 OFF ON 4 INT REJECT 5 ECHO STRETCH 6 ECHO AVERAGE 7 A C AUTO 8 FUNC 1 PULSE WD 9 NOISE REJECT OFF ON 0 VIDEO CONTRAST 1 2 3 SPECIFICATIONS OF MARINE RADAR FR 2125V 1 ANTENNA RADIATORS 1 Type Slotted waveguide array 2 Radiator length 6 5 ft XN20AF 8 ft XN24AF 3 Horizontal Beamwidth 1 23 XN20AF 0 95 XN24AF 4 Vertical Beamwidth 20 5 Side lobe Attenuation 28 dB or less within 1 of main lobe 32 dB or less 1 of main lobe or more 6 Polarization Horizontal 7 Rotation 24 rpm or 42 rpm option 2 RF TRANSCEIVER 1 Frequency 9410 MHz 30 MHz 2 Output Power 25 kW 3 Range Pulselength PL amp Pulse Repetition Rate PRR Range statute mile IEEE ep ILE poo os TE ET TT Tt pooo os dE ET ET mo om o o S e e dre
24. SXCEEUR avaro cmm 6 2 6 4 or Video Pitter Display ide 6 4 Mdb nete MELLE MI LN AD MEN MD E 6 6 66 Maks BI RT RETRO c 6 8 V ve D TOT 6 11 68 Navigation mrt 6 13 6 9 Recording Replaying Data 6 16 6 10 Nital Settings EET mmm 6 17 vi APPENDIX Menu Tree Set up for Fishing Vessel SPECIFICATIONS INDEX vii INTRODUCTION A Word to the Owner of FURUNO Radar Thank you for purchasing this FURUNO radar We are confident you will discover why FURUNO has become synonymous with quality and reliability Dedicated in the design and manufacture of marine electronics equipment for more than half a century FURUNO Electric Company has gained an unrivaled reputation as a world leader in the industry This is the result of our technical excellence as well as our world wide distribution and service network Please carefully read and follow the safety information and operating and maintenance instructions set forth in this manual before attempting to operate the equipment and con duct any maintenance Your radar set will perform to the utmost of its ability only if it is operated and maintained in accordance with the correct procedures Features of this Series of Radars Daylight bright rasterscan 21 inch multi color high resolution display New microprocessing technology with high speed h
25. Showing graphics 1 Press NAV MENU 8 to display the PLOT DISP SELECT menu Current selections appear in reverse video Blank items have been turned off on the VIDEO PLOTTER INITIAL SETTING menu For further details see paragraph 6 10 Initial Settings PLOT DISP SELECT 1 VIDEO PLOTTER 1 2 DANGER HIGHLIGHT OFF ON 3 COAST LINE OFF ON 4 LAND DENSITY OFF ON 5 PLACE NAME OFF ON 6 MARK OFF ON 7 OWN SHIP PLOT OFF SEPARATE CONTINUE 8 TARGET PLOT OFF ON 9 CONTOUR LINE OFF ON 0 GRID OFF ON Figure 6 3 PLOT DISP SELECT menu 2 Press appropriate numeral key twice to hide or show graphic 3 Press the ENTER key 4 Repeat steps 2 and 3 to hide or show other graphics 5 Press the NAV MENU key to close the menu Note LAND DENSITY fills ON or hollows OFF land on an electronic chart Land will be hollow when wrong card or wrong scale is used regardless of LAND DENSITY setting 6 4 2 Hiding Showing nav data You may select what navigation data to display on the video plotter display as follows 1 Press the NAV MENU key to display the NAV INFORMATION 1 menu NAV INFORMATION 1 1 VIDEO PLOTTER 1 2 SELECT NAVAID GPS LC DEAD RECKONING 3 OWN SHIP POSN OFF L L 4 POSN xx xx xxx N S XX XX XXX E S 5 CURSOR DATA OFF L L 6 WPT DATA OFF REL TRUE 7 NAV LINE 8 WAYPOINT 9 WIND DATA OFF ON 0 NAV INFORMATION 2 Figure 6 4 NAV INFORMATION 1 menu 2 Press appropriate numeral key to select both item and optio
26. TRAILS CANCEL Erases target trails Keys for EPA or ARPA optional 8 ACQ Acquires a target after selecting it by trackball 9 TARGET DATA Displays acquired target data 10 TARGET CANCEL Terminates plotting of a specified target or all tracked targets 12 VECTOR Selects vector mode true or relative 13 LOST TARGET Silences the lost target audible alarm and erases the lost target symbol 14 CHART ALIGN Aligns chart with the radar display Used with radar map video plot ter 15 MARK Enters erases mark Used with radar map video plotter 16 ENTER Used to save settings on menu screen Keys 0 9 Select video plotting symbols Also used for entering numeric data in any mode as applicable 1 4 1 4 CRT Brilliance The BRILLIANCE control on the control head of the display unit adjusts the entire screen brightness Note that the optimum point of adjustment varies with ambient light conditions especially between daytime and nighttime Note The CRT brilliance should be adjusted before adjusting relative brilliance levels on the BRILLIANCE menus to be explained later 1 5 Tuning the Receiver Tuning method can be selected at the RADAR 3 menu auto or manual 1 Press the RADAR MENU key 2 Press 0 0 2 0 and 0 in sequence to display the RADAR 3 menu 3 Press the 9 key twice to select AUTO or MAN ual 4 Press the ENTER key to confirm your selection 5 Press the RADAR MENU key to cl
27. adjusted CPA TCPA alarm ranges must be set up properly taking into consideration the size ton nage speed turning performance and other characteristics of own ship A CAUTION The CPA TCPA alarm feature should never be relied upon as the sole means for detecting the risk of collision The navigator is not relieved of the responsi bility to keep visual lookout for avoiding collisions whether or not the radar or other plotting aid is in use To set the CPA TCPA alarm ranges 1 Press the PLOT MENU key to show the EPA menu 2 Press the 2 key to select COLLISION ALARM ON At this point a highlight cursor appears at the CPA x x NM field 3 Enter the CPA alarm range in nautical miles 0 0 to 9 9 nm without omitting leading zeroes if any and press the ENTER key The highlight cursor now moves to the TCPA xx x MIN field 4 Enter the TCPA alarm limit in minutes 1 0 to 99 0 minutes without omitting leading zeroes if any and press the ENTER key 5 Press the PLOT MENU key to close the menu 1 25 7 Silencing CPA TCPA audible alarm Press the AUDIO OFF key to acknowledge and silence the CPA TCPA audible alarm The warning label COLLISION and the flashing of the triangle plot symbol and vector remain on the screen until the dangerous situation is gone or you intentionally terminate tracking of the offending target by using the TARGET CANCEL key 1 31 1 25 8 Changing size of the plotting symbols Y
28. antenna unit Open antenna cover to check terminal strip and plug connections inside Also check the rubber gasket of antenna covers for deterioration When closing antenna covers in position be careful not to catch loose wires between covers and unit 6 months to one year for quali fied tech nicians only CRT and surrounding components High voltage at CRT and surrounding components attract dust in environment which will cause poor insulation Ask a FURUNO representative or dealer to clean internal high voltage components If CRT anode rubber cap or wire sheath is cracked replace it For service technician Wait at least 3 minutes until high voltage components CRT and HV capacitors discharge their residual charges before accessing them Terminal strips Sockets earth terminal Check for loose connections Check contacts and plugs for proper seating etc 3 2 Life Expectancy of Major Parts The hours shown in the table below are the average usage times for ocean going ships When the radar is mainly used for detection of small targets on long ranges the usage times will be lower than shown Table 3 2 Life expectancy of major parts Type Life Expectancy D8G 571 48 rpm Gears more than 10 000 hours D8G 571 24 rpm MG 5436 25 kW 2 000 to 3 000 hours 3 2 3 3 Replacement of Battery A battery installed on the RP Board or GYRO CONVERTER Board inside the
29. based on what radar targets are selected the radar must always be optimally tuned for use with the auto plotter to ensure required targets will not be lost or unwanted targets such as sea returns and noise will not be acquired and tracked A target does not always mean a land mass reef ships or other surface vessels but can imply returns from sea surface and clutter As the level of clutter changes with environment the operator should properly adjust the A C SEA A C RAIN and GAIN controls to be sure target echoes are not eliminated from the radar screen A CAUTION The plotting accuracy and response of this auto plotter meets IMO standards Tracking accuracy is affected by the following e Tracking accuracy is affected by course change One to two minutes is required to restore vectors to full accuracy after an abrupt course change The actual amount depends on gyrocompass specifications The amount of tracking delay is inversely proportional to the relative speed of the target Delay is on the order of 15 30 seconds for high relative soeed 30 60 seconds for low relative speed Display accuracy is affected by the following e Echo intensity e Radar transmission pulsewidth e Radar bearing error e Gyrocompass error Course change own ship or target Safety Instructions for VIDEO PLOTTER RP 26 Option A CAUTION No one navigational aid should be relied upon for the safety of vessel and cr
30. desired plotting interval in reverse video 3 Press the ENTER key 4 To change other ships track plotting interval press 6 several times to select plotting interval 5 Press the ENTER key Plot interval and track storage time Memory capacity for own ship s track and other ship s track is 6 000 points each For other ship s track the 6 000 points is divided equally among ten targets so there are 600 points per target When a track memory becomes full the oldest track is deleted to make room for a new entry If own ship track is stored every minute 6 000 points of memory represents 100 hours of time span 3 minute intervals covers 16 days and 16 hours The time span covering one other ship is 1 10 of own ship as a total of 10 other ships equal to one OS 6 5 4 Memory used Press NAV MENU 0 to display the following MEMORY IN USE OWN SHIP 3456 TARGET 1124 MARK 0021 Figure 6 8 MEMORY IN USE display 6 5 5 Track smoothing Even when the vessel is sailing in a straight line the track shown on the display may not look straight This is due to signal variation of the external navaid You can compensate for this irregularity with smoothing A smoothing factor between 1 and 9 is available OFF provides no smoothing In most cases a smoothing setting between 1 and 5 is satisfactory 1 Press NAV MENU 5 in order 2 Press the 8 key to select smoothing factor 3 Press the ENTER key 6 5 6 Erasing
31. failure and target full status Predicted situation appears after selected delay 1 60 minutes 5 2 Controls for ARPA The ARPA uses the keys on the plotting keyboard on the right side of the control head PLOT MENU Shows hides ARPA menus Plot Symbol keys Select specific plot symbols for manually acquired targets TARGET CANCEL Terminates tracking of a single target specified by the trackball if the key is pressed with a hit and release action If the key is held depressed for about 3 seconds tracking of all targets is terminated ENTER Registers menu options selected VECTOR Selects true or relative presentation of target vectors TARGET DATA Displays data on one of tracked targets selected by the trackball LOST TARGET Silences the lost target aural alarm and erases the lost target symbol ACQ Manually acquires a target AUDIO OFF Silences aural alarm 13 gm ERE MODE AUDIO RADAR PLOT NAV OFF MENU MENU MENU 0 2 LL Em OFF OST Center WECTOR raRGET A 4 5 Oje ACQ CHART EBL ALIGN TARGET O17 tels DATA 0 TARGET CU TM TRAILS RESET TARGET CANCEL im 2 cancel 0 ENTER M 3 e 2 J Figure 5 1 Plotting keypad 5 3 ARPA Menu Operation 5 3 1 Activating the ARPA function 1 Press the RADAR MENU key 2 Press the 8 key to select
32. key toggles entering reference points between No 1 and No 2 etc VRMs TRANSMIT STANDBY 3 Set up 3 RANGE Keys 4 Set up 4 Select the range scales Figure 1 2 Control head 1 3 3 2 1 12 HL D N MODE AUDIO RADAR PLOT NAV eui CE MENU MENU MENU 13 H 4 cENrTER VECTOR TARGET Al 4 is UW 6 7S ACQ 8 EBL CHART MARK 8 5 gt OFFSET ALIGN 7 S8 9 TARGET 9 4 A DATA TARGET CU TM AC TRAILS RESET AUTO TARGET l 10 ean 0 ENTER J CANCEL 15 11 6 14 7 16 Figure 1 3 Control head key panel 1 MODE Selects presentation modes Head up Head up TB North up Course up and True Motion 2 PANEL BRILL Adjusts brightness of the control head panel 3 HL OFF Temporarily erases the heading line 4 OFF CENTER Activates and deactivates off centering of the own ship position 5 EBL OFFSET Activates and deactivates off centering of the EBL origin 6 CU TM RESET Resets the heading line to 000 in course up mode moves own ship position to 5096 7596 for NM type radar radius in stern direction in the True Motion mode 7 A C AUTO Reduces sea clutter at preset level Permits manual override by A C SEA and A C RAIN controls 11 TARGET
33. marked with a broken square and a vector appears within 20 scans of the antenna to indicate the target s motion trend Within 60 scans the initial tracking stage is finished and the target becomes ready for stable tracking At this point the broken square mark changes to a solid circle Targets automatically acquired are distinguished from those acquired manually The targets which are acquired manually are displayed by bold symbols 5 5 1 Enabling and disabling auto acquisition 1 Press RADAR MENU 8 twice ENTER and RADAR MENU if the ARPA is not yet activated Note that the label ARPA appears at the screen center 2 Press the PLOT MENU key to show the ARPA 1 menu ARPA 1 1 VECTOR TIME 30SEC 1 2 3 6 12 15 30MIN 2 AUTO ACQ OFF ON 3 AUTO ACQ AREA 3 6NM SET 4 GUARD ZONE OFF ON 5 GUARD ZONE SET 6 TARGET BASED SPEED 7 REFERENCE TARGET VECT OFF ON 8 COLLISION ALARM CPA 0 0KT TCPA 00 0MIN 9 TRIAL MANEUVER 0 ARPA 2 Figure 5 4 ARPA 1 menu 3 Press the 2 key to select AUTO ACQ 4 Further press the 2 key to select or highlight ON enable auto acquisition or OFF disable auto acquisition as appropriate 5 Press the ENTER key to conclude your selection followed by the PLOT MENU key to close the ARPA 1 menu Note that the label AUTO MAN is displayed at the screen center when auto acquisition is enabled MAN when auto acquisition is disabled Note When the ARPA has acquired 20 targets auto
34. parameters 5 3 past position display 5 15 performance test 5 24 plot symbol brilliance 5 12 plot symbol size 5 10 plot symbols 5 11 set and drift 5 16 speed input automatic 5 4 target data 5 13 target based speed 5 5 5 6 trial maneuver 5 21 5 23 vector modes 5 14 5 15 warnings 5 20 5 21 AUDIO OFF key 1 42 Barge information 1 46 Battery replacement 3 3 Bearing measurement 1 20 Brilliance picture 1 5 screen data 1 51 BRILLIANCE control 1 5 C Collision assessment 1 21 Control description 1 3 Course up mode 1 11 D DEGAUSS switch 1 7 Diagnostic test 4 4 E EBL Electronic Bearing Line 1 20 EBL OFF key 1 20 EBL OFFSET key 1 21 1 22 EBL ON key 1 20 Echo averaging 1 26 Echo stretch 1 25 EPA Electronic Plotting Aid CPA TCPA alarm range setting 1 31 plot symbol size 1 32 plotting a target 1 29 relative vector 1 29 silencing CPA TCPA alarm 1 31 target data 1 30 terminating target plotting 1 30 true vector 1 29 vector time 1 29 External waypoint display 1 50 F False echoes 2 3 Fishing vessel setup A 6 Function keys 1 40 1 45 G GAIN control 1 15 Gyro readout 1 8 H Head up mode 1 11 Head up true bearing mode 1 11 Heading line 1 37 Heading marker 1 37 HL OFF key 1 37 Index lines 1 34 1 36 displaying 1 35 erasing 1 35 line intervals 1 35 Interference rejector 1 17 L Legends 1 6 M Maintenance 3 1 3 3 battery replacement 3 3 major parts 3 2 schedule 3 2 Markers 1
35. performance test test flashing epvs symbol no 11a 5 7 3 ARPA EPA symbols shown on fishing vessel specification radar Item Symbol Status Remarks ARPA EPA ARPA EPA symbols available in fishing vessel symbols specification radar 5 8 Adjusting Brilliance of Plot Marks 1 Press RADAR MENU 0 to show the FUNCTIONS 2 menu a A C N to close the BRILLIANCE 2 menu Note Refer to paragraph 1 38 for the BRILLIANCE menu screen Press the 9 and 0 keys to show the BRILLIANCE 2 menu Press the 2 key to select PLOT BRILL Further press the 2 key to select or highlight a desired brilliance level Press the ENTER key to confirm your selection followed by the RADAR MENU key 5 9 Displaying Target Data The ARPA mode with built in ARP 26 optional board provides the full functionality of ARPA as required by the IMO Resolution A 823 19 and IEC 60872 1 including display of range bearing course speed CPA and TCPA of all plotted targets Data on one target may be displayed In the head up and head up true bearing modes target bearing course and speed shown at the center of the display become true suffix T or relative suffix R to own ship in accordance with the true relative vector setting In north up course up and true motion modes the target data field always displays true bearing true course and speed over the ground or thru the water Pl
36. read its distance at the lower right corner of the screen Each VRM remains at the same geographical distance when you operate the RANGE or RANGE key This means that the apparent radius of the VRM ring changes in propor tion to the selected range scale 3 Press the VRM OFF key to key to erase each VRM 340 Sa hun 020 330 aw un M7 030 820 qw 270 E E 090 iE I E 100 ha Su 8509 us 7 4 No 2 2 E E p PA 120 VRM 2 230 9 p S 220 u p omy lt gt 1 i T poo mimm ioo PUN 190 180 170 Active VRM is identified 770 S6SM lt i i 1 185 with this marker Figure 1 20 How to measure range with VRM 1 18 Measuring the Bearing Use the Electronic Bearing Lines EBLs to take bearings of a target There are two EBLs No 1 and No 2 which are toggled by successive presses of the EBL ON key Each EBL is a straight dashed line extending out from the own ship position up to the circumference of the radar picture The fine dashed line is the No 1 EBL and the coarse dashed one is the No 2 EBL 1 Press the EBL ON key to display either of the EBLs Successive presses of the EBL ON key toggle the active EBL between No 1 and No 2 and the currently active EBL readout is marked with 2 Rotate the EBL rotary control clockwise or counterclockwise until the active EBL bi sects the target of interest and read its bearing at the lower le
37. reef ships or other surface sponsibility to keep lookout for possible objects but can mean returns from the collisions whether or not the radar is sea surface or precipitation Properly in use adjust the GAIN A C SEA and A C RAIN controls to reduce noise to avoid generation of an alarm against a false target The target alarm serves to alert the navigator to targets ships landmasses etc entering a certain area with visual and audible alarms The outer and inner boundaries can be set at any distance The sector of the zone can be set anywhere between 0 and 360 degrees in any direction 1 21 1 Setting a target alarm zone Referring to Figure 1 24 use the trackball to place the cursor at point A 2 Press the RADAR MENU key to show the FUNCTIONS 1 menu 3 Press the 2 key to set start point point of the alarm zone The message ALARM1 or 2 SET appears at the bottom right corner of the screen 4 Move the cursor to point and press the 2 key again Then the target alarm zone as illustrated is created and the label ALARM 1 or 2 appears instead of ALARM1 or 2 SET at the lower right corner of the screen Note 1 If you wish to create a target alarm zone having a 360 degree coverage around own ship set point B in almost the same direction approx 3 as point A and press the 2 key Note 2 If you change the range scale to less than half of the TA
38. safe maneuver The trial maneuver is automatically terminated and the normal radar picture is restored three minutes later 5 16 3 Terminating trial maneuver Press the PLOT MENU key 5 23 5 17 ARPA Performance Test Test program is provided for assessing the ARPA overall performance Note that normal operation is interrupted and the label XX is displayed at the bottom of the screen during this test The test may be terminated at any moment To execute the performance test 1 Select the north up presentation mode on the 12 nm range 2 Enter own ship speed of 0 knots 3 Press the PLOT MENU key followed by the 0 key to show the ARPA 2 menu 4 Press the 9 key to select ARPA TRACK TEST 5 Press the ENTER key An alert XX flickers during the test It takes approximately three minutes for all vectors to be displayed The test does not need echo signals gyro nor speed log input Seven targets having different speeds and courses as shown in the table below are simu lated automatically 6 The test continues for five minutes and then repeats To terminate the track test press the STBY TX key The STBY display appears Select any target with the cursor and check that the selected target shows the course and speed as in the table CPA and TCPA shown below are initial values which change with time 350 000 010 020 Target Course Speed kt CPA nm TCPA min ca E C Target A
39. same bearing and close to each other This is determined by pulselength only Practically a 0 08 microsecond pulse offers the discrimination better than 35 m as do so with all FURUNO radars Test targets for determining the range and bearing resolution are radar reflectors having an echoing area of 10 m 2 1 3 Bearing accuracy One of the most important features of the radar is how accurately the bearing of a target can be measured The accuracy of bearing measurement basically depends on the nar rowness of the radar beam However the bearing is usually taken relative to the ship s heading and thus proper adjustment of the heading line at installation is an important factor in ensuring bearing accuracy To minimize error when measuring the bearing of a target put the target echo at the extreme position on the screen by selecting a suitable range 2 1 4 Range measurement Measurement of the range to a target is also a very important function of the radar Gener ally there are two means of measuring range the fixed range rings and the variable range marker VRM The fixed range rings appear on the screen with a predetermined interval and provide a rough estimate of the range to a target The variable range marker s diam eter is increased or decreased so that the marker touches the inner edge of the target allowing the operator to obtain more accurate range measurements 2 2 2 2 False Echoes Occasionally echo signals appear on th
40. the ROM card can also drive the Electronic Reference Chart ERC The ERC is a digital chart published by the Japanese Hydrographic Bureau Note it is not an ENC used for ECDIS 6 2 The Video Plotter Display Press the RADAR MENU key Press the 9 key once or twice for Chart plus Radar or Radar North marker 000 01 Separation zone 80 020 Heading marker 330 030 N ny ng 040 Waypoint Ly 2 3 7 S Dangerous side of own Yn Waypoint 1 p V ship safe contour may be 210 HAGA anny 150 marked like this 190 180 170 Past position ARPA Equally time spaced positions of any targets being tracked Note not equally geographically spaced EPA Past plot positions may not be equally time spaced up to the operator Figure 6 1 Video plotter display 6 3 Display Modes The RP 26 has two motion displays and three presentation modes Motion Displays Relative Motion RM True Motion TM Presentation Modes North up NU Course up CU Head up HU Note HU is not available on the RADAR VIDEO PLOTTER display When own ship mark is at a distance from the screen center 3 4 the range in use it is automatically reset to a point of 5096 radius 6 3 1 Precaution for chart memory cards Both the chart card and memory card are susceptible to sunlight and magnetic material Keep them away from direct sunlight heat sources and active gases Keep ca
41. them is the true echo directly reflected by the target and the other is a false echo which is caused by the mirror effect of a large object on or close to your ship as shown in the figure below If your ship comes close to a large metal bridge for ex ample such a false echo may temporarily be seen on the screen Target ship Mirror image False of target ship echo Figure 2 4 Virtual image 2 2 4 Shadow sectors Funnels stacks masts or derricks in the path of the antenna block the radar beam If the angle subtended at the antenna is more than a few degrees a non detecting sector may be produced Within this sector targets can not be detected Radar antenna Radar mast Shadow sector Figure 2 5 Shadow sectors 2 4 2 3 SART Search and Rescue Transponder A Search and Rescue Transponder SART may be triggered by any X Band 3 cm radar within a range of approximately 8 nm Each radar pulse received causes it to transmit a response which is swept repetitively across the complete radar frequency band When interrogated it first sweeps rapidly 0 4 us through the band before beginning a relatively slow sweep 7 5 us through the band back to the starting frequency This process is repeated for a total of twelve complete cycles At some point in each sweep the SART frequency will match that of the interrogating radar and be within the pass band of the radar receiver If the SART is within range the frequency mat
42. to select or highlight NO 2 VRM or MAN manual option Press the ENTER key to conclude your selection If you selected MAN in step 3 above MAN 00 00NM appears at the bottom of the FUNCTIONS 2 menu Enter a desired line interval without omitting leading zeroes by hitting numeric keys and then press the ENTER key There are choices of 2 3 and 6 index lines but the number of lines visible on the screen may be less than 6 depending on the line intervals a A C N 1 35 6 If you selected NO 2 VRM in step 3 above make sure that the No 2 VRM is active and adjust the spacing between the index lines by operating the VRM control 7 Press the RADAR MENU key to close the FUNCTIONS 2 menu 1 28 Origin Mark You can mark any reference points prominent target or a point of particular interest using the origin mark feature These marks max 10 are geographically fixed that is ground stabilized To display the origin marks heading signal and position data are required 1 28 1 Inscribing an origin mark 1 Using the trackball place the cursor at a point where you want to place a reference mark 2 Press the RADAR MENU key to show the FUNCTIONS 1 menu 3 Press the 3 key The origin mark appears at the cursor position of which range and bearing are indicated at the screen center 4 To measure the range and bearing to a target of interest from the origin mark move the cursor to the target of interest Then th
43. 2 key to select or highlight STATIC or DYNAMIC as appropriate Press the ENTER key to conclude your selection followed by the 1 key to go back to the ARPA 1 menu Press the 9 key on the ARPA 1 menu The TRIAL DATA SETTING menu appears at the screen bottom associated with the current own ship s speed and course readouts TRIAL DATA SETTING DYNAMIC MODE SPEED VRM 15 0KT COURSE EBL 53 6 DELAY TIME KEY xx xMIN TRIAL TIME xx xMIN STATIC MODE when static mode is selected Figure 5 15 TRIAL DATA SETTING menu Enter own ship s intended speed course and delay time in the following manner Speed Set with the VRM control Course Set with the EBL control Delay time Enter in minutes by hitting numeric keys This is the time after which own ship takes a new situation not the time the simulation begins Change the delay time according to own ship loading condition etc Trial time Enter in minutes by hitting numeric keys This is the length of the trial time in minutes Press the ENTER key to start the trial maneuver Trial maneuver takes place in three minutes with the letter T displayed at the bottom of the screen If any tracked target is predicted to be on a collision course with own ship that is the target ship comes within preset CPA TCPA limits the target plot symbol changes to a triangle and flashes If this happens change own ship s trial speed course or delay time to obtain a
44. 20 5SM 51 52 30 75 8M S1 S2 M1 41 5SM 51 52 1 535 S2 M1 M2 M3 6 6 SM M1 M2 M3 L 7 12 24 SM M2 M3 L 2 2 to toggle between OPERATION and PICTURE menu FUNCTION KEY 1 OPR 1 FUNCTIONS 3 2 FUNC KEY1 3 OPERATION TARGET TRAILS TARGET ALARM ARPA VIDEO PLOT ZOOM BKGD COLOR INDEX LINES INT REJECT 2ND ECHO ORIGIN MARK PLS WD 1 PLS WD 2 ECHO STRETCH 1 2 3 ECHO AVG 1 2 3 ECHO COLOR CHAR BRILL MARK BRILL TRAIL BRILL RINGS BRILL EBL BRILL VRM BRILL CURSOR BRILL HL BRILL PLOT BRILL L L BRILL CHART BRILL NOISE REJECT BARGE MK BARGE CONFIGURATION PICTURE OPERATION Figure 1 43 Keying sequence for setting functions keys 1 2 3 1 43 Picture setup default for function keys 1 2 and 3 Table 1 3 Picture setup default for Function Keys 1 2 and 3 9 NOISE P L on REJ 12 24 SM RIVER OFF BUOY ON SHIP ON SHORT LONG CRUISING HARBOR COAST OCEAN ROUGH SEA ON ON MINI UJ Ol W C2 1 44 1 33 5 Setting for function key 4 RADAR MENU FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 3 ORIGIN MARK 4 INDEX LINES 5 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 1 or 2 1 to 10 FUNCTIONS 2 1 FUNCTIONS 1 2 BKGD COLOR BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECHO STRETCH 4 ECHO AVERAGE 5 ECHO COLOR 6 SHIP SPEED
45. 39 133 pede em 1 40 1 34 Ba rge neque erc 1 46 1 35 Radar ER ERE 1 46 1 36 Suppressing Second trace EChOBE e Ng niet 1 50 1 37 Displaying External Waypoint and Navigation 1 50 1 38 Adjusting Brilliance of Screen 1 51 1 39 Display or Wind Tide Depth Time 1 52 1 40 Rate 0f lunn Scale isses DE Erin uam es acie me ebrei 1 53 tAr Alarms nee eee 1 54 2 RADAR OBSERVATION ZN AGUA Mc 2 1 2 2 5 mm mmm 2 3 2 3 SART Search and Rescue Transponder 2 5 24 RAGON Radar BEACON 2 7 3 MAINTENANCE 3 1 Periodic Maintenance Schedule sese 3 2 3 2 Die Exp ctancy of Major Deae e Laden 3 2 3 3 Replacement Ernte eor p ed de de 3 3 4 TROUBLESHOOTING Easy amp rc 4 2 4 2 Advanced level Troubleshooting 4 2 4 3 Diagnostic TST ccn 4 4 5 ARPA ARP 26 Option for NM type radar SECO E IEEE ves cae aa eat cin mas ge e
46. A 99 9 MIN BCR BCT BCR Bow Cross Range is the range at which a target will cross own ship s bow BCT Bow Cross Time is the estimated time at which a target will cross own ship s bow If BCR is negative BCR BCT readout is displayed as 1 25 5 Terminating target plotting With EPA you can plot up to 10 targets You may wish to terminate plotting of less impor tant targets to newly plot other threatening targets By Symbol To terminate plotting of a certain target press the TARGET CANCEL key and then press the corresponding plot number key With Trackball Use the trackball to place the cursor on a target which you do not want to be tracked any longer and then press the TARGET CANCEL key All Targets To terminate plotting of all targets at once press and hold the TARGET CANCEL key until all plot symbols and marks disappear in about three seconds 1 30 1 25 6 Setting CPA TCPA alarm ranges When the predicted CPA of any target becomes smaller than a preset CPA alarm range and its predicted TCPA less than a preset TCPA alarm limit the EPA releases an aural alarm and displays the warning label COLLISION on the screen In addition the EPA symbol changes to a triangle and flashes together with its vector Provided that this feature is used correctly it will help prevent the risk of collision by alert ing you to threatening targets It is important that GAIN A C SEA A C RAIN and other radar controls are properly
47. A REVOLUTION LOW HIGH 8 RADAR NO 1 2 9 TUNE MAN AUTO 0 TUNE INITIALIZE 1 RADAR Select 1 for single radar installation or for connecting to antenna No 1 on dual radar installation 2 ALARM Audio alarm level is 65 70 80 db A 8 Does not appear on SM type radar Figure 1 41 RADAR menus 1 39 1 33 Function Keys The four function keys 1 4 on the control head serve for a macro function to instantly select a combination of assigned functions or settings The function keys provide optimum radar settings for a specific purpose with a single key operation Each function key can be assigned a combination of particular radar settings that will be most suited to your specific navigating purpose and an adhesive label such as BUOY HARBOR COAST or the like is usually attached to the key top for easy identification of the assigned purpose The individual function keys are preset or programmed for the following purposes by qualified service personnel at the time of installation using the procedures described in the succeeding paragraphs Function keys 1 2 and 3 Picture setup and specific operation Function key 4 Specific operation or watch alarm 9 CACSEA GAIN RANGE FUNCTION keys 1 SET UP 1 2 SET UP 2 3 SET UP 3 4 SET UP 4 Figure 1 42 Control head function keys 1 33 1 Picture setup Suppose that you have been navigating al
48. A Setting 72 1 T to Waypoint TRUE VECTOR 6MIN BT 1999 03 03 13 28 UTC Date Time bd WN SHIP GP 34 57 843N o Position 2 OSHIP TOT SCURCOR DOS 94557 2 ccu Position MAN 135 57 720E MAN 134 57 597E Nav data displayed when no Alarm Message waypoint is selected Area Figure 1 6 Data display 1 7 Degaussing the CRT Screen Each time the radar is turned on the degaussing circuit automatically demagnetizes the CRT screen to eliminate color contamination caused by earth s magnetism or magnetized ship structure The screen is also degaussed automatically at certain time intervals While being de gaussed the screen may be disturbed momentarily with vertical lines If you wish to de gauss by manual operation open the tuning compartment and press the DEGAUSS switch POWER switch CAC RAIN A ICSEA GAIN STBY TX RANGE Tuning compartment DEGAUSS switch Figure 1 7 Control head showing tuning compartment 1 8 Initializing the Gyro Readout When a gyrocompass is interfaced with the radar ship s heading is displayed at the top right hand corner of the screen Upon turning on the radar align the on screen HDG read out with the gyrocompass reading by the procedure shown below Once you have set the initial heading correctly resetting is not usually required However if the HDG readout goes wrong for some reason repeat the procedure to c
49. A function 5 13 Setting CPA TCPA Alarm Ranges The ARPA continuously monitors the predicted range at the Closest Point of Approach CPA and predicted time to CPA TCPA of each tracked target to own ship When the predicted CPA of any target becomes smaller than the preset CPA alarm range and its predicted TCPA less than a preset TCPA alarm limit the ARPA releases an aural alarm and displays the warning label COLLISION on the screen In addition the ARPA symbol changes to a triangle and flashes together with its vector Provided that this feature is used correctly it will help avoid collision by alerting you to threatening targets It is important that GAIN A C SEA A C RAIN and other radar controls are properly adjusted CPA TCPA alarm ranges must be set up properly taking into consideration the size ton nage speed turning performance and other characteristics of own ship A CAUTION The CPA TCPA alarm feature should never be relied upon as the sole means for detecting the risk of collision The navigator is not relieved of the responsi bility to keep visual lookout for avoiding collisions whether or not the radar or other plotting aid is in use 5 13 1 Setting CPA TCPA alarm ranges To set the CPA TCPA alarm ranges 1 Press the PLOT MENU key to show the ARPA 1 menu 2 Press the 8 key to select menu item COLLISION ALARM At this point a highlight cursor appears at the CPA 0 0 NM field 3 Enter the CPA al
50. CK 1 NO 1 XXXX NO 11 XXXX NO 12 XXXX NO 13 XXXX NO 14 XXXX NO 15 XXXX NO 16 XXXX NO 17 XXXX NO 18 XXXX NO 19 XXXX NO 20 XXXX 2 XXXX 4 XXXX 5 XXXX 6 XXXX 7 8 XXXX NO 9 XXXX NO 10 XXXX MIN HIT XX SCAN XXX FE STATUS XXXX AUTO XX MAN XX LOST XX Set up for Fishing Vessel This radar can be customized as a fishing vessel version with an internal setting The fishing vessel version requires and additional picture setup option BIRD which is as signable to one of the functions keys depending on a setting on FUNCTION KEY 1 2 or 3 menu shown below When the option BIRD is menu selected at the time of installation the corresponding functions key is labeled BIRD Press the function key BIRD and the radar will be set up for optimum detection of sea birds between 6 and 16 nm As is well known by professional fishermen locating a flock of sea birds is useful for finding certain species of fish RADAR MENU key FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 3 ORIGIN MARK FUNCTIONS 3 1 FUNCTIONS 2 1 or 2 2 RADAR 1 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 key FUNCTIONS 2 1 FUNCTIONS 1 2 BKGD COLOR 3 ECHO STRETCH 4 ECHO AVERAGE 5 ECHO COLOR 6 SHIP SPEED 7 SET DRIFT 8 INDEX LINES 9 BRILLIANCE 1 0 FUNCTIONS 3 BLK GRN CHAR BLK
51. D 8 ARRIVAL ALARM OFF ON X XXNM XX XMIN 9 TURNING LINE OFF ON REVISED Figure 6 15 NAVLINE menu 5 Press the 7 key to choose NAV LINE DATA VIDEO PLOTTER for internally gener ated navigation width data or NAVAID for external navaid generated data Press the ENTER key Press the 4 key to select NAV WIDTH Enter line width in nautical miles and then press the ENTER key N QO To display waypoint number of the route on the display press the 5 key to select ON and then press the ENTER key 10 To skip a waypoint press the 6 key enter next waypoint to head to and then press the ENTER key 11 Press the ENTER key 12 If you want to be alerted when own ship nears a waypoint press the 8 key to select ON press the ENTER key enter arrival alarm range and press the ENTER key 13 Press the 9 key to set turning line and then press the ENTER key OFF Turns turning lines off ON Use this setting when vessel is not to correct cross track error to return to course set after arriving at turning line location REVISED Use this setting when vessel is to return to course set after correcting cross track error after arriving at turning line location 14 Press the 3 key 15 Enter navigation line number and then press the ENTER key 6 9 Recording Replaying Data 6 9 1 Formatting memory cards Before you can use a memory card RAM card with the RP 26 the card must be format ted
52. Does not appear 6 TRAIL REL TRUE 9 SM type radar 7 TRAIL GRAD SGL MULT 8 PULSE WD 1 9 PULSE WD 2 0 RADAR 2 Figure 1 33 RADAR 1 menu 3 Press the 6 key to select menu item 6 TRAIL 4 Press the 6 key to select or highlight REL Relative or TRUE option 5 Press the ENTER key to confirm your selection and then press the RADAR MENU key to close the menu 1 26 2 Target trail gradation Target trails may be shown in monotone or gradual shading Gradual shading paints the trails getting thinner with time just like the afterglow on an analog PPI radar PPP Ike mmm Monotone Gradual Shading Figure 1 34 Trail gradation 1 Press the RADAR MENU key followed by 0 0 and 2 to display the RADAR 1 menu 3 Press the 7 key to select menu item 7 TRAIL GRAD 4 Press the 7 key to select SGL single tone or MULT multiple shading option 5 Press the ENTER key to confirm your selection then RADAR MENU key to close the menu 1 26 3 Displaying erasing target trails Press the RADAR MENU key followed by the 1 key to activate or deactivate the target trails feature FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 1 or 2 3 ORIGIN MARK 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 Figure 1 35 FUNCTIONS 1 menu 1 33 Each press of the 1 key within five seconds cyclically changes target trail length time as below
53. E MK OFF ON 3 BARGE SIZE LENGTH 000ft 4 FUNCTIONS 4 1 FUNCTIONS 3 2 3 TEST WIDTH OOft BARGE INFORMATION 4 4 BARGE INFORMATION 5 ORIGIN MK DISP NO SYMBOL 6 ORIGIN MK STAB GND SEA 7 ANTENNA REVOLUTION LOW HIGH 8 RADAR NO 1 2 9 TUNE MAN AUTO 0 TUNE INITIALIZE 1 RADAR 3 2 1 RADAR Menu con t 3 4 or 5 FUNCTION KEY 1 PICT 1 FUNCTIONS 3 2 FUNC KEY1 PICTURE OPERATION 3 PICTURE FUNC1 BUOY SHIP SHORT LONG CRUISING HARBOR COAST SEA ROUGH SEA RIVER BIRD 4 INT REJECT OFF 1 2 3 5 ECHO STRETCH OFF 1 2 3 6 ECHO AVERAGE OFF 1 2 8 7 A C AUTO OFF ON 8 FUNC 1 PULSE WD 9 NOISE REJECT OFF ON 0 VIDEO CONTRAST 1 2 3 8 FUNC 1 PULSE WD 1 FUNCTION KEY 1 20 5 SM 51 52 30 75SM 51 52 1 4 1 5 SM 1 S2 M1 53SM S2 M1 M2 M3 66SM M1 M2 M3 L 7 12 24 SM M2 M3 L 2 2 to toggle between OPERATION and PICTURE menu Y FUNCTION KEY 1 OPR 1 FUNCTIONS 3 2 FUNC KEY1 PICTURE OPERATION 3 OPERATION TARGET TRAILS TARGET ALARM ARPA VIDEO PLOT ZOOM BKGD COLOR INDEX LINES INT REJECT 2ND ECHO ORIGIN MARK PLS WD1 PLS WD 2 ECHO STRETCH 1 2 3 ECHO AVG 1 2 3 ECHO COLOR CHAR BRILL MARK BRILL TRAIL BRILL RINGS BRILL EBL BRILL VRM BRILL CURSOR BRILL HL BRILL PL
54. ECKONING ENTER MAP MAP DISP SELECT 3 OWN SHIP POSN OFF L L 1 RADAR MAP 1 RADAR MAP 4 POSN SEDE DEAN 2ENTERMAP MAP xx 2 DANGER HIGHLIGHT OFF ON 54CURSORDATA OFF L L WARS ENE SELON 6 WPT DATA OFF REL TRUE 5 NAV LINE OFF ON 7 NAV LINE 6 PROHIBITED AREAS OFF ON CUm ray e NTOUR LINE FF ON 0 NAV INFORMATION 2 9 ERASE MAP xx spi 0 NAV INFORMATION 2 NAV LINE 1 NAV INFORMATION 1 1 NAV INFORMATION 1 2 WIND GRAPH OFF ON 2 NAV LINE OFF ON 3 WIND UNIT LINE NO XX XX XX XX 4 CURRENT DATA OFF ON 7 4 NAV WIDTH OFF ON 5 CURRENT GRAPH OFF ON 0 000NM 6 DEPTH DATA OFF ON 5 WPT NO OFF ON 7DEPTH GRAPH OFF ON 6 WPT xx 8 DEPTH SCALE 10 20 50 100 e xx 200 500 x 9 DEPTH UNIT m ft 7 NAV LINE DATA VIDEO PLOTTER NAVAID OFF ALL 0 NAV INFORMATION 3 8ARRIVALALARM OFF ALL 0 0 00NM 9 TURNING LINE OFF ON REVISED NAV INFORMATION 3 1 NAV INFORMATION 2 rel 2 WATER TEMPERATURE OFF ON EM eel WAY POINT 3 DATE OFF UTC LOCAL 1 NAV INFORMATION 1 00 0H 2 WPT MARK OFF ON 4 3 WPT 5 WPTxx 6 WPTxx 7 WPTxx 8 ROT SCALE OFF 30 90 WPTxx WPTxx 4 WPT LINE OFF ON 5 WPT NO OFF ON 6 7 MAP ERASE 8ARRIVALALARM OFF ON 1 RADAR MAP 0 005 2 DANGER HIGHLIGHT OFF ALL 3 COAST LINE OFF ALL 9 4 MARK OFF ALL 5 NAV LINE OFF ALL 6 PROHIBITED AREAS OFF ALL 7 BUOY OFF ALL 8 CONTOUR LINE OFF ALL NAV Menu w RP 26
55. EO PLOT 0 FUNCTIONS 2 0 key 1 key FUNCTIONS 2 1 FUNCTIONS 1 2 BKGD COLOR 1 or 2 1 to 10 BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU OFF 1 2 3 OFF 1 2 3 YEL GRN COLOR LOG NAV MAN MAN 00 0KT STW SOG OFF MAN SET 000 0 DRIFT 00 0KT NO 2 VRM MAN MAN 00 00SM 9 BRILLIANCE 1 0 FUNCTIONS 3 3 ECHO STRETCH 4 ECHO AVERAGE 5 ECHO COLOR 6 SHIP SPEED 7 SET DRIFT 8 INDEX LINES 0 key 1 key FUNCTIONS 3 1 FUNCTIONS 2 2 RADAR 1 3 FUNCTION KEY 1 4 FUNCTION KEY 2 5 FUNCTION KEY 3 RADAR 1 1 FUNCTIONS 3 2 EBL 1 REL TRUE 3 EBL2 REL TRUE 4 VRM 1 NM km 5 VRM 2 NM km REL TRUE Does not appear on SM type radar 6 FUNCTION KEY 4 2 key 6 TRAIL 7 RADAR 1 2 8 INTER SWITCH 9 GYRO SETTING EBL xxx x 0 FUNCTIONS 4 Figure 7 TRAIL SGL MULT 8 PULSE WD 1 9 PULSE WD 2 0 RADAR 2 1 12 Sequence for selecting pulsewidth In the RADAR 1 menu select 8 for pulsewidth 1 or 9 for pulsewidth 2 0 5SMrange 51 52 1 5 SM range 51 52 1 6 SM range M1 M2 M3 1 14 0 75 SM range S1 S2 M1 3 SM range S2 M1 M2 M3 L 12 24 SM range M2 M3 L 1 13 Adjusting the Sensitivity The GAIN control is used to adjust the sensitivity of the receiver and thus the intensity of echoes as they appear on the screen It should be adjusted so that the speckled back ground noise
56. FF ON 4 HISTORY POINTS 5 10 20 5 HISTORY INTERVAL 30SEC 1 2 3 6MIN 6 MARK SIZE STD LARGE 7 GUARD ACQ STABILIZE NORTH CRT 8 INPUT SIG CHECK 1 9 ARPA TRACK TEST 0 Figure 5 10 ARPA 2 menu 2 Press the 8 key twice to select HISTORY ON 3 Press the ENTER key followed by the PLOT MENU key The label HISTORY ap pears on the display To erase past positions press the 3 key at step 2 in the above to procedure to display HISTORY OFF 5 11 2 Selecting the number of dots and past position plot intervals 1 Press PLOT MENU 0 to show the ARPA 2 menu Press the 4 key to select HISTORY POINTS Further press the 4 key to select a desired number of past positions 5 10 or 20 Press the ENTER key to confirm your selection Press the 5 key to select HISTORY INTERVAL Further press the 5 key to select a desired past position plot interval 0 5 1 2 3 or 6 minutes O amp CO N N Press the ENTER key to conclude your selection 8 Press the PLOT MENU key to close the menu 5 12 Set and Drift Set and Rate Set the direction in which a water current flows can be manually entered in 0 1 degree steps Drift in another word Rate the speed of tide can also be entered manually in O 1 knot steps Set and drift corrections are beneficial for increasing the accuracy of vectors and target data The correction is best made in the head up mode with true vectors watching landmasses
57. Formatting prepares the recording surface of the card for use with the system Insert a new memory card in the right side card drive and follow the procedure below to format it 1 Press NAV MENU 6 to choose CARD 2 I RECORD is not in reverse video press the 6 key again 3 Press the ENTER key RECORD CARD 1 VIDEO PLOTTER 1 2 OWN SHIP PLOT T 3TARGETPLOT A 4 MARK M 5 6 7 8 9 0 FORMAT NO YES Figure 6 16 RECORD CARD menu 4 Press the 0 key twice to select YES 5 Press the ENTER key 6 9 2 Recording data When the track memory becomes full the oldest track is erased to make room for the latest Further when the mark memory becomes full you cannot enter another mark un less you erase a mark Thus you should save important data to a memory card 1 Insert a formatted RAM card into the card drive 2 Press NAV MENU and 6 to choose CARD 3 If RECORD is not in reverse video press the 6 key again 4 Press the ENTER key 5 Select item to record with appropriate numeric key 2 Own ship s track 3 Target track 4 Marks 5 Radar map 6 Enter file name You may use ten figures 7 Press the ENTER key 6 9 3 Replaying data 1 Press NAV MENU 6 2 If REPLAY is not in reverse video press the 6 key again 3 Press the ENTER key REPLAY CARD 1 1 VIDEO PLOTTER 2 XXX 3 XXX 4 XXX 5 XXX 6 XXX 7 XXX 8 XXX 9 XXX 0 REPLAY CARD 2 Figure 6 17 REPLAY CARD m
58. IN control If itis heavy rain switch to S band if provided or switch on the interference rejector on the radar If heavy clutter still exists switch to manual acquisition Accuracy can be affected 5 26 Low clouds Usually no effect If necessary adjust the A C RAIN control Non synchronous emissions No effect Low gain Insufficient or low radar receiver gain will result in some targets not being acquired at long distance The ARPA display will be missing on one or more targets that could only be visible if the radar sensitivity control GAIN control were increased The setting of the correct radar receiver gain is not critical but the target should be on the radar and be clearly visible and well defined Manual acquisition is done if a target is positively displayed more than once Automatic acquisition is done when the target is detected 5 7 times continuously Tracking is achieved when the target is detected five times not necessarily continuously out of 10 scans If not detected six times out of 10 scans the target will become a lost target The ARPA will acquire a radar echo that is present once in every six antenna scans and continue tracking if one in 10 Second trace echoes When the radar beam is super refracted strong echoes may be received at such long ranges that they appear on a different timebase sweep than the transmitted pulse This gives an incorrect range indication Second and third trace ech
59. LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 FUNCTIONS 2 9 BRILLIANCE 1 1 FUNCTIONS 1 1 FUNCTIONS 2 2 BKGD COLOR 2 RINGS BRILL OFF DIM M1 M2 BRT BLK GRN CHAR 3 EBL BRILL DIM M1 M2 BRT BLK RED CHAR 4 VRM BRILL DIM M1 M2 BRT BLU ECHO AREA 5 CURSOR BRILL OFF DIM M1 M2 BRT BLU 6 CHAR BRILL DIM M1 M2 BRT BRT BLU 7 MARK BRIL DIM M1 M2 BRT 3 ECHO STRETCH OFF 1 2 3 8 TRAIL BRILL DIM M1 M2 BRT 4 ECHO AVERAGE OFF 1 2 3 9 HL BRILL DIM M BRT 5 ECHO COLOR YEL GRN COLOR 6 SHIP SPEED LOG NAVMAN MAN 00 0KT STW SOG 7 SET DRIFT OFF MAN SET 000 0 DRIFT 00 0KT 8 INDEX LINES NO 2 VRM MAN MAN 00 00NM 0 BRILLIANCE 2 BRILLIANCE 2 1 BRILLIANCE 1 2 PLOT BRILL OFF DIM M1 M2 BRT GRID BRILL DIM M1 M2 BRT 4 CHART BRILL DIM M1 M2 BRT 5 SYMBOLS BRILL DIM M1 M2 BRT 9 BRILLIANCE 1 0 FUNCTIONS 3 Figure 1 49 Sequence for selection of brilliance options 1 51 The table below describes which menu item adjusts the brilliance of which picture ele ment Table 1 4 Brilliance menu option and function adjusted Menu Functions Menu Item Functions adjusted adjusted RINGS Fixed range rings EBL Electronic bearing lines No 1 and No 2 Variable range Trackball controlled markers No 1 and cursor No 2 Alphanumeric Bearing scale readouts Target trails Heading line and stern marker Plots for EPA and Latitud
60. LR OPERATOR S MANUAL MARINE RADAR MODEL FR 2125V FURUNO ELECTRIC LTD NISHINOMIYA JAPAN FURUNO ELECTRIC Co LTD 9 52 Ashihara cho Nishinomiya Japan Telephone 0798 65 2111 Telefax 0798 65 4200 All rights reserved Printed in Japan PUB No OME 34710 YOSH FR 2125V Your Local Agent Dealer FIRST EDITION APR 1999 G AUG 8 2001 00080875100 A SAFETY INSTRUCTIONS A WARNING Radio Frequency Radiation Hazard The radar antenna emits electromagnetic radio frequency RF energy which can be harmful particularly to your eyes Never look directly into the antenna aperture from a close distance while the radar is in operation or expose yourself to the transmitting antenna at a close distance Distances at which RF radiation levels of 100 and 10 W m exist are given in the table below Note If the antenna unit is installed at a close distance in front of the wheel house your administration may require halt of transmission within a certain sector of antenna revolution This is possible Ask your FURUNO representative or dealer to provide this feature Distance to RF power density 10 W m on antenna point aperature Radiator Distance to type 100 W m point XN12AF 4 sr m im XN20AF 6 5 1 1 mworstcase 100m 200 W cm worst case XN24AF 8 A WARNING A WARNING ELECTRICAL SHOCK HAZARD Do not open th
61. MAN over the ground determined by EPFS Echo Reference or MAN 00 00SM Dual axis speed log It is obtained by a distance between 9 BRILLIANCE 1 points over the ground divided by the time spent for 0 FUNCTIONS 3 traveling between these two points Figure 1 10 FUNCTIONS 2 menu 2 Press the 6 key to select menu item 6 SHIP SPEED 3 Press the 6 key to select LOG or NAV 4 When the serial speed data is selected at the installation menu select the speed mode STW speed through the water or SOG speed over the ground If pulse speed data is selected the STB SOG does not appear 5 Press the ENTER key to confirm your selection followed by the RADAR MENU key to close the FUNCTIONS menu The ship s speed readout at the screen top shows own ship s speed fed from the speed log followed by the label LOG Notes on automatic speed input 1 IMO Resolution A 823 19 for ARPA recommends that a speed log to be interfaced with an ARPA should be capable of providing through the water speed 2 Be sure not to select LOG when a speed log is not connected If the log signal is not provided the ship s speed readout at the top right hand corner will be blank 3 SPD and SIGNAL MISSING LOG appears if no log signal is present for 30 seconds while the ship s speed has been more than 5 0 kt 4 With the serial speed inputs and SOG selection if the type of data is changed from SOG to STW the label SOG appears in red at
62. O STRETCH OFF 1 2 3 4 ECHO AVERAGE OFF 1 2 3 5ECHOCOLOR YEL GRN COLOR 6 SHIP SPEED LOG NAV MAN MAN 00 0KT STW SOG 7 SET DRIFT OFF MAN SET 000 0 DRIFT 00 0KT 8 INDEX LINES NO 2 VRM MAN MAN 00 00SM 9 BRILLIANCE 1 0 FUNCTIONS 3 Figure 1 28 FUNCTIONS 2 menu 2 Press the 4 key to select ECHO AVERAGE 3 Press the 4 key until echo average option 1 2 3 or OFF as desired is highlighted OFF No averaging effect 1 Helps distinguish targets from sea clutter and suppresses brilliance of unstable echoes 2 Distinguishes small stationary targets such as navigation buoys 3 Stably displays distant targets 4 Press the ENTER key to conclude your selection followed by the RADAR MENU key to close the FUNCTIONS menu a Echo average OFF b Echo average ON Figure 1 29 Echo averaging Echo averaging uses scan to scan signal correlation technique based on the true motion over the ground of each target Thus small stationary targets such as buoys will be shown while suppressing random echoes such as sea clutter True echo average is not however effective for picking up small targets running at high speeds over the ground A CAUTION Echo average is inoperable when a gyrocom pass signal is not available If you wish to use this feature without a gyrocompass sig nal consult a FURUNO representative Do not use the Echo Average feature under heavy pitching and rolling loss of true targets c
63. OFF 30s 1 min 3 min 5 min 15 min 30 min continuous OFF The current target trail setting is displayed at the lower right corner of the screen Suppose that 3 MIN has just been selected If the 1 key is hit on the FUNCTION 1 menu more than five seconds later target trails are removed from the display memory still alive with target trail timer count going on Next hitting of the key calls out the target trails on the screen To proceed to longer plot intervals successively push the 1 key with a hit and release action The larger the target trail length the larger the target trail plot interval Note Holding the 1 key depressed for about three seconds on the FUNCTION 1 menu will cause a loss of target trail data so far stored in the memory 1 26 3 Resetting target trails To reset or clear the target trail memory hold the TARGET TRAILS CANCEL key de pressed for about three seconds Target trails are cleared and the trailing process restarts from time count zero at current target trail plot interval When the memory assigned to target trails becomes full the target trail timer at the lower right corner of the screen freezes and the oldest trails are erased to show the latest trails 1 27 Parallel Index Lines Parallel index lines are useful for keeping a constant distance between own ship and a coastline or a partner ship when navigating Index lines are drawn in parallel with the No 2 EBL No 2 EBL must be activ
64. OFF key to acknowledge and silence the guard zone aural alarm Refer to paragraph 5 14 Setting a Guard Zone for further information 5 15 3 Lost target alarm When the system detects a loss of a tracked target the target symbol becomes a flashing diamond mark and the label LOST appears at the screen bottom At the same time an aural alarm is produced for one second Press the LOST TARGET key to acknowledge the lost target alarm Then the lost target mark disappears 5 15 4 Target full alarm When the memory becomes full the memory full status is indicated the relevant indica tion appears on the screen and a short beep sounds 5 15 5 Manually acquired targets The indication MAN TARGET FULL appears at the screen center and a short beep tone sounds when the number of manually acquired targets reaches 20 or 30 depending on whether auto acquisition is activated or not 5 20 5 15 6 Automatically acquired targets The indication AUTO TARGET FULL appears at the screen center and a short beep tone sounds when the number of automatically acquired targets reaches 20 5 15 7 System failure alarm When the ARP board receives no signal input from the radar or external equipment the screen shows both SYSTEM FAIL associated with an indication denoting offending equip ment also releasing an aural alarm The missing signals are denoted as shown below Missing Signal Indication Speed log signal LOG Headin
65. OT BRILL L L BRILL CHART BRILL NOISE REJECT BARGE MK BARGE CONFIGURATION FUNCTION KEY 4 OPR 1 FUNCTIONS 3 2 FUNC KEY1 OPERATION WATCH ALARM 3 OPERATION TARGET TRAILS TARGET ALARM ARPA VIDEO PLOT ZOOM BKGD COLOR INDEX LINES INT REJECT 2ND ECHO ORIGIN MARK PLS WD1 PLS WD 2 ECHO STRETCH 1 2 3 ECHO AVG 1 2 3 ECHO COLOR CHAR BRILL MARK BRILL TRAIL BRILL RINGS BRILL EBL BRILL VRM BRILL CURSOR BRILL HL BRILL PLOT BRILL L L BRILL CHART BRILL NOISE REJECT BARGE MK BARGE CONFIGURATION Press 2 once or twice to toggle between OPERATION and WATCH ALARM followed by ENTER key FUNCTION KEY 4 WATCH ALARM 1 FUNCTIONS 3 2 FUNC KEY4 3 WATCH ALARM INTERVAL 6 10 12 15 20 MIN OPERATION WATCH ALARM NAV Menu PLOT Menu PLOT MENU Key EPA 1 VECTOR TIME 2 COLLISION ALARM OFF ON CPA 0 05 TCPA 00 0MIN 3 MARK SIZE STD LARGE 4 PLOT NO OFF ON 30SEC 1 2 3 6 12 15 30MIN NAV MENU Key Radar only mode 1 RADAR MAP 1 NAV INFORMATION 1 2 MAP OFF ON 3 MAP NO MAP xx MAP LIST XX XX XX XX XX XX XX XX XX XX 4 NAV DATA POSN 5 ALIGN CURSOR DATA OFF ON 6 MARK ENTRY MODE CURSOR OWN SHIP POSN L L 7 ENTRY MAP 8 MAP DISP SELECT NAV INFORMATION 1 9 MAP ERASE 1 RADAR MAP 2 SELECT NAVAID GPS LC DEAD ju 8 R
66. PLOTTER DISP SELECT XXX XX XXXE NAV LINE LIST 1 VIDEO PLOTTER 1 04 XX OCXXXN 1 ENTER WPT NAV LINE 2 DANGER HIGHLIGHT OFF ON 3 XXX XX XXXE NAV LINEXX XX XX 3 COAST LINE OFF ON 05 XX XXXN XX XX XX 4 LAND DENSITY OFF ON XXX XX XXXE XX XX XX 5 PLACE NAME OFF ON 06 6 MARK OFF ON atte 7 OWN SHIP PLOT OFF SEPARATE CONTINUE XXX XX XXXE 07 XX XX XXXN 8 TARGET PLOT OFF ON XXX XX XXXE 9 CONTOUR LINE OFF ON 08 0 GRID OFF ON J XXX XX XXXE 09 XXX XX XXXE PLOTTER ERASE E 9 ERASE WPTXX 9 ERASE NAV LINEXX 1 VIDEO PLOTTER 1 0 WPT LIST 2 2 OWN SHIP PLO 30 50 80 ALL 3 TARGET PLOT 30 50 80 ALL 1 Fishing vessel only 4 MARK OFF ALL 2 Radar connected to INS 5 WPT OFF ALL WPT LIST 2 10 3 Items depend on the setting of 6 NAV LINE OFF ALL video plotter initial setting PLOT Menu w ARP 26 PLOT MENU Key 1 VECTOR TIME 30SEC 1 2 3 6 12 15 30MIN 2 AUTO ACQ OFF ON AUTO ACQ AREA SET 1 ARPA 1 2 1 2 SET LEFT RIGHT BOUNDARY 3 AUTO ACQ AREA 3 6 SET 4 GUARD ZONE OFF ON 5 GUARD ZONE SET 6 TARGET BASED SPEED 10R20R3 7 REFERENCE TARGET OFF ON 8 COLLISION ALARM CPA 0 0 TCPA 00 0MIN 9 TRIAL MANEUVER 0 ARPA 2 ARPA 2 1 ARPA 1 2 TRIAL MODE STATIC DYNAMIC 3 HISTORY OFF ON 4 HISTORY POINTS 5 10 20 5 HISTORY INTERVAL 30SEC 1 2 3 6MIN 6 MARK SIZE STD LARGE 7 GUARD ACQ STABILIZE NORTH C
67. Press the NAV MENU key to display the NAV INFORMATION 1 menu 2 Press the 1 key to display the RADAR MAP menu 3 Press the 6 key and further press the 6 key to select the entry mode cursor L L or own ship position 4 Press the ENTER key followed by the NAV MENU key 5 Press the MARK key to read the following legends 1 47 ENTER MARK 00 00 000 VS 5 65 000 00 000 E W 7 E J MARK 01 11 21 LINE CHANGE 12 22 MARK CANCEL 13 14 15 16 NAV LINE 17 COAST LINE 18 CONTOUR LINE 19 PROHIBITED AREAS 20 CABLE CANCEL ENTER MARK CANCEL KEY Appears when L L mode is selected step 3 Figure 1 46 Marks for radar map 6 Select a wanted position followed by the ENTER key Positions can be selected either by the Trackball lat lon values or at own ship 7 Select a desired mark by the corresponding number followed by the ENTER key 8 Repeat steps 6 7 To enter the same mark selected simply repeat step 6 9 To erase a mark entered enter 22 place the cursor to the mark you want to erase and then press the CANCEL key 10 To escape the mark entry mode press the CANCEL key Example How to draw a coastline 1 Press the MARK key Enter 17 to select COAST LINE and press the ENTER key 2 3 Place the cursor mark on a required position and press the ENTER key 4 Place the cursor at a next position and press
68. R MARK MARK NO 01 11 21 LINE CHANGE 12 22 MARK CANCEL 13 lt gt 14 15 16 NAV LINE 17 COAST LINE 18 CONTOUR LINE 19 PROHIBITED AREAS 101 20 CABLE CANCEL ENTER MARK CANCEL KEY Figure 6 10 ENTER MARK menu cursor own ship 2 Enter mark number to select desired mark followed by the ENTER key On the OWN SHIP POSN mode selected mark is entered at own ship s position 3 On the CURSOR mode operate the trackball to place the cursor on the position de sired for the mark 4 Press the ENTER key 5 To escape the mark entry mode press the CANCEL key Entering marks by latitude and longitude 1 Select L L POSN following Selecting method of entry on the previous page Press the MARK key ENTER MARK 00 00 000 S 5 N 6 5 000 00 000 S W 7 8 W MARK NO 01 11 21 LINE CHANGE 12 22 MARK CANCEL 13 lt gt 14 15 16 NAV LINE 17 COAST LINE 18 CONTOUR LINE 19 PROHIBITED AREAS 20 CABLE CANCEL ENTER MARK CANCEL KEY Figure 6 11 ENTER MARK menu L L position 2 Enter latitude by numeric keys followed by the ENTER key 3 Enter longitude followed by the ENTER key 4 Enter mark number to select desired mark followed by the ENTER key 5 To escape the mark entry mode press the CANCEL key 6 6 2 Erasing marks lines When the mark memory becomes full no marks can entered un
69. RT 8 INPUT SIG CHECK 1 CANCEL PREVIOUS AREA CANCEL KEY GUARD ZONE SET 1 ARPA 1 2 1 2 SET LEFT RIGHT BOUNDARY CANCEL PREVIOUS AREA CANCEL KEY TRIAL DATA SETTING DYNAMIC MODE or STATIC MODE SPEED VRM COURSE EBL 53 6 DELAY TIME KEY TRIAL TIME 15 0KT XX XMIN XX XMIN 8 INPUT SIG CHECK 1 9 ARPA TRACK TEST 0 ARPA INITIAL SEETING 9 ARPA TRACK TEST 1 ARPA 2 NOTE THE DISPLAY IS CLEARER WHEN RUNNING THIS TEST RUN TEST YES ENTER KEY NO CANCEL KEY ARPA INITIAL SETTING 1 ARPA 2 2 TARGET SETTING 0 1 2 3 4 3 TRACK RANGE 24 32 4 QV SELECT 0 1 2 3 5 TGT OUTPUT DATA OFF REL TRUE 6 DISP CPA TCPA OFF ON 7 START TIME TARGET VECT 1MIN 20SCANS 8 TARGET DATA REL TRUE 9 ARPA RESET ARPA PRESET 10000 13 0000 25 0000 20000 14 0000 26 0000 30000 15 0000 27 0000 40000 16 0000 28 0000 50000 17 0000 29 0000 6 0000 18 0000 30 0000 70000 19 0000 31 0000 80000 20 0000 32 0000 9 0000 21 0000 33 0000 100000 22 0000 34 0000 110000 23 0000 35 0000 12 0000 24 0000 36 0000 NO 00 DATA 0000 1 ARPA 2 HD BP F V TGT SEL LOG PULSE XXXP CPU1 COUNTER XXXXX CPU2 COUNTER XXXXX LOG SENSOR LOG EXT SPEED XX XKT EXT COURSE XXX X LOG SPD XX XKT MAN SPD XX XKT GYRO XXX X SET XXX X DRIFT XX XKT HD ALIGN XXX X CPU1STATUS XXXX CPU2STATUS XXXX 0 INPUT SIG CHECK 2 INPUT SIG CHECK 2 1 INPUT SIG CHE
70. SSING appears when the heading pulse is not received during stand by Replace gyro interface Tuning manually adjusted but poor sensitivity Deteriorated magnetron Detuned MIC Dirt on radiator face Second trace rejection is ON Transmitting on the 48 nm range check magnetron current If current is below normal value magnetron may be defective Replace magnetron Check MIC detecting current If it is below normal value MIC may have become detuned MIC must be tuned Clean radiator surface Disable the second trace rejector referring to paragraph 1 36 Range changed but radar picture does not change Defective RANGE key SPU Board Mother Board Video lockup Try to hit and RANGE keys several times If unsuccess ful replacement of keypad may be required Replace SPU Board Replace Mother Board Turn off and on radar Interference rejector inoperable interference rejection level not displayed SPU Board Mother Board Replace SPU Board Replace Mother Board Echo stretch ineffective Neither ES1 nor ES2 is displayed SPU Board Replace SPU Board Only 2 parallel index lines 6 lines wanted Incorrect setting of index line interval Set parallel index line interval referring to paragraph 1 27 Table 4 2 Advanced level troubleshooting table con t Problem Check point and probable cause Reme
71. UNCTIONS 2 9 BRILLIANCE 2 1 BRILLIANCE 1 0 2 PLOT BRILL OFF DIM M1 M2 BRT GRID BRILL DIM M1 M2 BRT FUNCTIONS 2 4 CHART BRILL DIM M1 M2 BRT 1 FUNCTIONS 1 5 SYMBOLS BRILL DIM M1 M2 BRT 2 BKGD COLOR BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU RADAR 1 Does not appear BRATB U 4 FUNCTIONS 3 3 ECHO STRETCH OFF 1 2 3 2 ESL REL TRUE 4 ECHO AVERAGE OFF 1 2 3 3 EBL2 REL TRUE PULSE WD 1 5 ECHO COLOR YEL GRN COLOR 4 VRM1 NM km 1 RADAR 1 6 SHIP SPEED LOG NAV MAN 5 VRM2 NM km 20 5 SM 51 52 MAN 00 08 6 TRAIL REL TRUE 30 75SM 51 52 1 OT SOS 7TRAILGRAD SGLIMULT 8 41 55 51 52 1 7 SET DRIFT OFE MANN 8 PULSE WD 1 gt 53 SM S2 M1 M2 M3 9 PULSE WD 2 66SM MI M2 M3 L 8 INDEX LINES NO 2 VRM MAN O RADAR 2 piece MM MAN 00 00SM 0 9 BRILLIANCE 1 9 0 FUNCTIONS 3 RADAR 2 L gt PULSE WD 2 e 1 RADAR 1 1 RADAR 1 2 CURSOR REL TRUE 20 58M 51 52 3 NOISE REJECT OFF ON 30 75SM S1 S2 MT FUNCTIONS 3 4 STERN MK OFF ON 41 5SM S1 S2 M1 1 FUNCTIONS 2 2 5 SHIP S MK OFF ON 53 SM S2 M1 M2 M3 2 RADAR 1 6 ALARM IN OUT 66SM M1 M2 M3 L 3 FUNCTION KEY 1 7 KEY BEEP OFF L M H 7 12 24 SM M2 M3 L 4 FUNCTION KEY 2 1 See AUDIO ALARM OFF L M H 5 FUNCTION KEY 3 next 9 2ND ECHO OFF ON 6 FUNCTION KEY 4 page o RADAR 3 7 RADAR 1 2 8 INTER SWITCH 0 9 GYRO SETTING EBL xxx x 0 FUNCTIONS 4 RADAR 3 1 RADAR 2 2 BARG
72. Z the warning TGT ALARM1 or 2 OUT appears instead of ALARM or 2 5 Two alarm zones can be set as described above Press ENTER and 2 keys in that order while displaying the FUNCTIONS 1 menu and repeat the above steps 1 23 Target Alarm Zone TAZ 350 009 010 020 i 340 330 asd 030 ww 310 we 75 050 22 060 290 E 070 2 280 3 zs 2 080 270 5 i 090 Mu 3 When the radar has an ARPA board ARP 26 a total of m four alarm zones 2 each TAZ and GZ may be set 240 E 230 ES The 2nd TAZ or 2nd GZ is available only when the 220 y aw 140 1st TAZ or 1st GZ is valid S Appius a 150 qu 160 190 180 170 Figure 1 24 How to set target alarm zone 1 21 2 Acknowledging alarm A target entering the watch zone produces both visual flashing and audible beeping alarms To silence the audible alarm press the 2 key shortly on the FUNCTIONS 1 menu and the label ALARM1 ACK replaces TGT ALARM1 on the display This will deactivate the audible alarm but will not stop the flashing of the target in the target alarm zone To reactivate the audible alarm press the 2 key again on the FUNCTIONS 1 menu When an external buzzer is connected the audible alarm does not stop until the target alarm is deactivated 1 21 3 Deactivating target alarm Hold the 2 key depressed for at least five seconds on the FUNCTIONS 1 menu 1 21 4 Inward an
73. about 1 nm the position at which the first dot is displayed may be as much as 0 64 nm beyond the true position of the SART When the range closes so that the fast sweep responses are seen also the first of these will be no more than 150 meters beyond the true position Radar bandwidth This is normally matched to the radar pulselength and is usually switched with the range scale and the associated pulselength Narrow bandwidths of 3 5 MHz are used with long pulses on long range and wide bandwidths of 10 25 MHz with short pulses on short ranges Any radar bandwidth of less than 5 MHz will attenuate the SART signal slightly so it is preferable to use a medium bandwidth to ensure optimum detection of the SART Radar side lobes As the SART is approached sidelobes from the radar antenna may show the SART re sponses as a series of arcs or concentric rings These can be removed by the use of the anti clutter sea control although it may be operationally useful to observe the sidelobes as they may be easier to detect in clutter conditions and also they will confirm that the SART is near to the ship Gain For maximum range SART detection the normal gain setting for long range detection should be used that is with background noise speckle visible A C SEA control For optimum range SART detection this control should be set to the minimum Care should be exercised as wanted target in sea clutter may be obscured Note also that in clutter con
74. ace the cursor on a desired target and press the TARGET DATA key Target data is displayed as below RNG BRG Range Bearing Range and bearing from own ship to the selected target with suffix T True or R Relative CSE SPD Course Speed Course and speed are displayed for the selected target with suffix T True or R relative CPA TCPA CPA Closest Point of Approach is the closest range a target will approach to own ship TCPA is the time to CPA Both CPA and TCPA are automatically calculated When the CPA has passed clear of own ship it is indicated by a TCPA with a negative sign TCPA is counted to 99 9 minutes and beyond this it is indicated as TCPA gt 99 9MIN BCR Bow Cross Range Range at which target is to cross own ship s bow BCT Bow Cross Time Time of BCR Target accessed for data readout RNG 0 439NM Target in BRG 122 7 GZ 01 CSE 254 2 T SPD 14 9KT CPA 0 4NM TCPA 0 0MIN CONO 7 BCR 0 8NM 200 SIL oe Fd BCT gt 99 9MIN 230 y QS 130 Acquisition Zone w S 140 210 150 7 7 Jti rip im jy 200 490 180 170 160 Figure 5 8 ARPA plot 5 13 5 10 Vector Modes Target vectors can be displayed relative to own ship s heading Relative or north True 5 10 1 Ground stabilization and sea stabilization Target vectors can be ground stabilized or sea stabilized Sea stabilization is a mode where own ship and all targets a
75. an result 1 27 1 25 Electronic Plotting Aid EPA A maximum 10 operator selected targets can be plotted electronically to assess their motion trend Five past positions can be displayed for each of the plotted targets If you enter a eth plot on a certain target the oldest plot past position will be erased A vector appears when you enter a second plot for the target and is updated each time a new plot is entered The vector shows the target motion trend based on its latest two plots The vector origin will move across the screen at a rate and direction defined by the calcu lated true course and speed until a next manual plotting Target data is shown in the data display area which shows bearing course speed CPA TCPA BCR BCT calculated true course of targets calculated true speed of targets Elapsed Time 0 03 RNG 0 439SM BRG 122 7 T 01 CSE 254 2 T BT TRU SPD 14 9KT BT TRU 350 000 010 020 330 030 0 4SM PM 040 TCPA 0 0MIN uc ad C un BCR 0 8SM uc dra BCT gt 99 9MIN 290 2 i t EPA me TRUE VECTOR 6MIN BT 2602 210 gt Jas s Speed Reference aS Vector Reference Bottom Tracking 220 My A MO True or Relative or Water Tracking 210 PP 150 2 190 180 170 160 NOTES Vector Time e Target 1 is on a collision course 9 EPA DATA calculated up to 99 9 min TCPA higher than this is shown as 99 9MIN
76. ar The diagnostic test is executed and the screen shows test results as shown on the next page OKs appear for normal operation If NG No good appears corresponding components may be defective Consult your dealer Small squares displayed at the right bottom of the test result screen are for testing the control and keys on the control head As you operate these controls and keys corre sponding squares are highlighted indicating that your control key operations are prop erly recognized To terminate the diagnostic test press STBY TX key once or twice 4 4 RADAR MENU key FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 3 ORIGIN MARK 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 10 key 1 or 2 1 to 10 FUNCTIONS 2 1 FUNCTIONS 1 2 BKGD COLOR 3 ECHO STRETCH 4 ECHO AVERAGE 5 ECHO COLOR 6 SHIP SPEED 7 SET DRIFT 8 INDEX LINES 9 BRILLIANCE 1 0 FUNCTIONS 3 BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU OFF 1 2 3 OFF 1 2 3 YEL GRN COLOR LOG NAV MAN MAN 00 0KT STW SOG OFF MAN SET 000 0 DRIFT 00 0KT NO 2 VRM MAN MAN 00 00NM FUNCTIONS 3 1 FUNCTIONS 2 2 RADAR 1 3 FUNCTION KEY 1 4 FUNCTION KEY 2 5 FUNCTION KEY 3 6 FUNCTION KEY 4 7 RADAR 1 2 8 INTER SWITCH 9 GYRO SETTING 0 FUNCTIONS 4 0 key FUNCTIONS 4 1 FUNCTIONS 3 2 3 TEST
77. arm range in nautical miles 0 0 to 9 9 nm without omitting leading zeroes if any and press the ENTER key The highlight cursor now moves to the TCPA 00x 0 MIN field 4 Enterthe TCPA alarm limit in minutes 1 0 to 99 9 min without omitting leading zeroes if any and press the ENTER key 5 Press the PLOT MENU key to close the menu 5 13 2 Acknowledging CPA TCPA audible alarm Press the AUDIO OFF key to acknowledge and silence the CPA TCPA aural alarm The warning label COLLISION and the flashing of the triangle plot symbol and vector remain on the screen until the dangerous situation is gone or you intentionally terminate tracking of the target by using the TARGET CANCEL key 5 14 Setting a Guard Zone When a target transits the operator set guard zone the buzzer sounds and the indication GUARD turns red at the screen bottom The target causing the warning is clearly indicated with an inverted flashing triangle A CAUTION Guard Zone Alarm The guard zone alarm should not be re lied upon as the sole means for detecting possible collision situations The opera tor of a ship is not relieved of the respon sibility to keep lookout for possible collisions whether or not the radar is in use 5 14 1 Activating the guard zone One or two guard zones may be selected The No 1 guard zone is available between 3 and 6 nm and the No 2 guard zone can be set anywhere when the No 1 zone is already in use To set a
78. arts the count down sequence again If you press the AUDIO OFF key before the selected time interval is reached the watch alarm timer is reset to the initial value and starts the count down sequence again 1 42 RADAR MENU FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 1 or 2 3 ORIGIN MARK 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 FUNCTIONS 2 1 FUNCTIONS 1 2 BKGD COLOR BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECHO STRETCH OFF 1 2 3 4 ECHO AVERAGE OFF 1 2 3 5ECHOCOLOR YEL GRN COLOR 6 SHIP SPEED LOG NAV MAN MAN 00 0KT STW SOG 7 SET DRIFT OFF MAN SET 000 0 DRIFT 00 0KT NO 2 VRM MAN MAN 00 00SM 9 BRILLIANCE 1 0 FUNCTIONS 3 8 INDEX LINES FUNCTIONS 3 1 FUNCTIONS 2 2 RADAR 1 3 FUNCTION KEY 1 4 FUNCTION KEY 2 3 3 5 FUNCTION KEY 3 6 FUNCTION KEY 4 7 RADAR 1 2 8 INTER SWITCH 9 GYRO SETTING EBL xxx x 0 FUNCTIONS 4 1 33 4 Setting for function keys 1 2 3 FUNCTION KEY 1 PICT 1 FUNCTIONS 3 2 FUNC KEY1 3 PICTURE PICTURE OPERATION FUNC1 BUOY SHIP SHORT LONG CRUISING HARBOR COAST SEA ROUGH SEA RIVER BIRD 4 INT REJECT OFF 1 2 3 5 ECHO STRETCH OFF 1 2 3 6 ECHO AVERAGE OFF 1 2 3 7 AUTO OFF ON 8 FUNC 1 PULSE WD 9 NOISE REJECT OFF ON 0 VIDEO CONTRAST 1 2 3 FUNC 1 PULSE WD 1 FUNCTION KEY 1
79. ce clutter is observed on very calm waters set the control at the fully counterclockwise position 1 16 1 15 Suppressing Precipitation Clutter In adverse weather conditions clouds rain or snow produce a lot of spray like spurious echoes and impairs target detection over a long distance This situation can be improved by using a function key provided that it is so programmed If the function key fails to offer a favorable suppression of the rain clutter adjust the A C RAIN control on the control head A C RAIN control 638 RAIN A CSEA GAIN s E A C RAIN control A C RAIN control off adjusted Figure 1 16 Control head A C RAIN effect The A C RAIN control adjusts the receiver sensitivity as the A C SEA control does but rather in a longer time period longer range Clockwise rotation of this control increases the anti clutter effect 1 16 Interference Rejector Mutual radar interference may occur in the vicinity of another shipborne radar operating in the same frequency band It is seen on the screen as a number of bright spikes either in irregular patterns or in the form of usually curved spoke like dotted lines extending from the center to the edge of the picture This type of interference can be reduced by activating the interference rejector circuit The interference rejector is a kind of signal correlation circuit It compares the received signals over successive trans
80. ch as land naviga tional marks and ships at anchor will represent the reciprocal of own ship s ground track A target of which vector extension passes through own ship is on the collision course Dashed lines in the figure are for explanation only 5 14 5 10 4 Vector time Vector time or the length of vectors can be set to 30 seconds 1 2 3 6 12 15 or 30 minutes and the selected vector time is indicated at the screen center 1 Press the PLOT MENU key to display the ARPA 1 menu 2 Press the 1 key to select VECTOR TIME 3 Further press the 1 key to select or highlight a desired vector time 4 Press the ENTER key to conclude your selection 5 Press the PLOT MENU key to close the menu The vector tip shows an estimated position of the target after the selected vector time elapses It can be valuable to extend the vector length to evaluate the risk of collision with any target 5 11 Past Position Display The ARPA displays equally time spaced dots marking the past positions of any targets being tracked A new dot is added every minute or at preset time intervals until the preset number is reached If a target changes its speed the spacing will be uneven If it changes course its plotted course will not be a straight line 5 11 1 Displaying and erasing past positions To display past positions 1 Press PLOT MENU 0 to display the ARPA 2 menu 1 ARPA 1 2 TRIAL MODE STATIC DYNAMIC 3 HISTORY
81. ch during each of the 12 slow sweeps will produce a response on the radar display thus a line of 12 dots equally spaced by about 0 64 nautical miles will be shown When the range to the SART is reduced to about 1 nm the radar display may show also the 12 responses generated during the fast sweeps These additional dot responses which also are equally spaced by 0 64 nm will be interspersed with the original line of 12 dots They will appear slightly weaker and smaller than the original dots Screen A When SART Screen B When SART is distant i is close Lines of 12 dots are displayed in concentric arcs Echo of SART Radar antenna beamwidth Echo of SART Position of SART Own ship s position SART mark length Own ship s position Position of SART Radar receiver bandwidth A Low speed sweep signal Sweep start High speed sweep signal Figure 2 6 Appearance of SAHT signal on the radar display 2 3 1 General procedure for detecting SART response 1 Use the range scale of 6 or 12 nm as the spacing between the SART responses is about 0 6 nm 1125 m to distinguish the SART 2 Turn off the automatic clutter suppression 3 Turn off the Interference Rejector 4 Turn off the Echo Average 2 5 2 3 2 General remarks on receiving SART SART range errors When responses from only the 12 low frequency sweeps are visible when the SART is at a range greater than
82. created and copied to another card 1 35 1 General operation procedure 1 Press the NAV MENU key to show the NAV INFORMATION 1 menu 2 Press the 2 key to select the SELECT NAVAID operation 3 Press the 2 key again to select navigation data input device followed by the ENTER key 4 Also set other nav data parameters as appropriate 5 Press the NAV MENU key to close the NAV INFORMATION menu 1 46 Notes on radar map operation 1 Own ship position display requires an input from radionavigational equipment such as a GPS receiver in accordance with the data format as defined by IEC 61162 1 2 Wind water current depth water temperature are not displayed when relevant sen sors are not fitted 1 35 2 Making a radar map 1 Press the NAV MENU key to display the NAV INFORMATION 1 menu 2 Press the 1 key to display the RADAR MAP menu 3 Press the 2 key twice to set MAP ON then press the ENTER key 4 Press the 8 key to select the MAP DISP SELECT menu MAP DISP SELECT 1 RADAR MAP 2 DANGER HIGHLIGHT OFF ON 8 COAST LINE OFF ON 4 MARK OFF ON 5 NAV LINE OFF ON 6 PROHIBITED AREAS OFF ON 7 BUOY OFF ON 8 CONTOUR LINE OFF ON Figure 1 45 MAP DISP SELECT menu 5 Press appropriate numeric key twice to select ON then press the ENTER key 6 Press the NAV MENU key to close the menu Mark entry mode Marks can be entered by cursor position L L position manual entry or own ship position 1
83. cription North 350 0 3 010 S 2 SN My SS S 7 x My WN 7 Ww 210 MT www 45 200 annui umm 190 180 170 40 L 020 830 ut nt b Heading Line Heading Marker 040 Ny 2 Pi 0 In the north up mode target pips are painted at their measured distances and in their true compass directions from own ship north bearing maintained up of the screen The heading line changes its direction according to the ship s heading If the gyrocompass fails the presentation mode changes to head up and the north marker disappears Also the HDG readout shows asterisks North He tun hil 020 30 Asset 03 1 R U E M O My 190 180 170 4 040 ading Line Heading Marker 2 S NS m 150 Own ship and other moving objects move in accord ance with their true courses and speed In ground stabilized TM all fixed targets such as landmasses appear as stationary echoes In the sea stabilized TM without set and drift inputs the landmass can move on the screen When own ship reaches a point corresponding to 50 of the radius of the display it is automatically reset to a point of 5096 radius opposite to the extension of the heading line passing through the display center Resetting can be made at any moment before the ship reaches the limit by pressing the CU TM RESET key Automatic resetting is preceded by a beep sound
84. d outward target alarms An inward or outward target alarm can be selected on the RADAR 2 menu The inward target alarm generates visual and audible warnings when a target enters the guard zone from any direction The outward target alarm is produced when a target leaves the target alarm zone a Inward target alarm b Outward target alarm Figure 1 25 Inward and outward target alarm zones 1 24 1 22 Off Centering Own ship position or sweep origin can be displaced to expand the view field without switching to a larger range scale The sweep origin can be off centered to the cursor position but not more than 7596 of the range in use if the cursor is set beyond 75 of the range scale the sweep origin will be off centered to the point of 7596 of the limit This feature is not available on the longest range scale or in the true motion mode The number of range rings increases keeping the original range intervals unchanged To off center the radar picture 1 Place the cursor at a position where you wish to move the sweep origin by operating the trackball 2 Press the DFF CENTER key Then the sweep origin is off centered to the cursor position 3 To cancel off centering press the OFF CENTER key again 1 23 Echo Stretch On long ranges target echoes tend to shrink in the bearing direction making them difficult to see On short and medium ranges such as 1 5 3 and 6 SM scales the same size targets get smaller on scre
85. d zone is valid Two more alarm zones No 1 and No 2 Target Alarm Zones may be added This means a maximum of four alarm zones Target in a guard zone is are available at any time ARPA symbols are not changed to marked by an inverted inverted triangles in the TAZ only those in the GZ do so flashing triangle Figure 5 12 Guard zone 5 14 2 Deactivating the guard zone gt OO Press the PLOT MENU key to show the ARPA 1 menu Press the 4 key to select GUARD ZONE Further press the 4 key to select or highlight OFF to deactivate the guard zone Press the ENTER key to conclude your selection followed by the PLOT MENU key to close the menu 5 14 3 Acknowledging the guard zone alarm Press the AUDIO OFF key to acknowledge and silence the guard zone aural alarm 5 15 Operational Warnings There are six main situations which cause the ARPA to trigger visual and aural alarms CPA TCPA alarm Guard zone alarm e Lost target alarm Target full alarm for manual acquisition Target full alarm for automatic acquisition System failures 5 15 1 CPA TCPA alarm Visual and aural alarms are generated when the predicted CPA and TCPA of any target become less than their preset limits Press the AUDIO OFF key to acknowledge and silence the CPA TCPA aural alarm 5 15 2 Guard zone alarm Visual and aural alarms are generated when a target transits the operator set guard zone Press the AUDIO
86. ding and labeled T Wind velocity is a true wind speed as a result of compensating for own ship s speed and orientation Ocean current tide is the direction to which the current is flowing away from os position relative to north T in this case means a true value while T denotes relative to True North in the case of EBLs and target ship vectors OS heading Present depth 0 Current relative to north N4 full scale 10 kt Last 30 minutes Wind direction relative to of depth OS heading full scale 100 kt Wind velocity is calculated value to exclude the ship s orientation and speed 30 20 10 min b Depth Data a Wind Data in Head up Mode Figure 1 50 Depth and wind data displays 1 40 Displaying the Rate of Turn Scale If a rate of turn meter is connected to this radar the rate of turn scale can be displayed at the top of the radar screen 1 Press the NAV MENU key 2 Press the 0 key twice to display the NAV INFORMATION 3 menu 3 Press the 8 key to select ROT SCALE 4 Further press the 8 key to turn the rate of turn display on or off and select display range in degrees Rate of Turn Scale 0 75 0 258M eT HT T js AUTO TUNE 90 60 30 0 30 60 90 0 350SM HDG 123 4 T GYRO Figure 1 51 Rate of turn scale 1 53 1 41 Alarms The table below summarizes alarms which may occur at various warning conditions Fault Audible alarm Tabl
87. display unit helps preserve the data when the power is turned off The life of the battery is about five years When the battery voltage is low NG appears at diagnostic test for RP board Contact your dealer for replacement Table 3 3 Battery ordering information PCB Battery Code Name Type number Board ER3S 000 127 759 GC Board CR 1 28 L 000 103 769 4 TROUBLESHOOTING A WARNING POWER Switch in AC Do not open the equipment Powered Display Unit Hazardous voltage which can FOR TECHNICIANS cause electrical shock exists inside the equipment Only The display unit designed to run on AC qualified personnel should power has a power switch inside its work inside the equipment base which cuts off 100 200 VAC power to the display unit Pull the display unit Turn off the radar power forward several centimeters to access switch before servicing the the switch TURN THE SWITCH OFF antenna unit Post a warn as well as the main POWER switch ing sign near the switch WHENEVER ACCESSING INSIDE THE indicating it should not be DISPLAY UNIT turned on while the antenna unit is being serviced POWER Switch Prevent the potential risk of being struck by the rotating antenna and exposure to RF radiation hazard Wear a safety belt and hard hat when working on the antenna unit
88. ditions the first few dots of the SART response may not be detectable irrespective of the setting of the anti clutter sea control In this case the position of the SART may be estimated by measuring 9 5 nm miles from the furthest dot back towards own ship Some sets have automatic manual anti clutter sea control facilities in which case the op erator should switch to manual 2 6 A C RAIN control This should be used normally to break up areas of rain when trying to detect a SART response which being a series of dots is not affected by the action of the anti clutter rain circuitry Note that Racon responses which are often in the form of a long flash will be affected by the use of this control Some sets have automatic manual anti clutter rain control facilities in which case the operator should switch to manual Note This SART information is excerpted from IMO SN Circ 197 Operation of Marine Radar for SART Detection 2 4 RACON Radar Beacon A racon is a radar transponder which emits a characteristic signal when triggered by a ship s radar usually only the 3 centimeter band The signal may be emitted on the same frequency as that of the triggering radar in which case it is superimposed on the ship s radar display automatically The racon signal appears on the as a radial line originating at a point just beyond the position of the radar beacon or as a Morse code signal figure below displayed radially from just beyond
89. dy Range rings are not 1 Adjust the brilliance of 1 Replace associated circuit board displayed range rings on BRILL1 menu SPU Board if unsuccessful 2 Replace SPU Board Poor discrimination at range Sea clutter control not functioning properly 1 Improper setting of A C SEA control If sea clutter is seen only at very close range suspect inaccurate frequency of crystal oscillator True motion presentation not working correctly Poor contact of MODE key Selection is not accessed Speed entry is incorrect TM display inaccurate 1 Try to press the MODE key a little harder 2 Press the MODE key until TM appears 3 Enter correct own ship speed referring to paragraph 1 9 4 Make sure that speed and compass inputs are accurate Target not tracked correctly Poor definition of targets in sea clutter 4 3 Diagnostic Test 1 Adjust A C SEA and A C RAIN controls referring to paragraphs 1 14 and 1 15 A diagnostic test program is provided to enable testing of major circuit boards in the radar display unit Note that the normal radar picture is lost during this test Proceed as follows to execute the diagnostic test 1 Press the RADAR MENU key to show the FUNCTIONS 1 menu Press the 0 key three times to show the FUNCTIONS 4 menu Press the 3 key to select menu item TEST Then press the ENTER key Program numbers appe
90. e The orientation of the index lines is controlled with the EBL control without effecting the EBL indication and the intervals between the lines ad justed with the VRM rotary control provided that No 2 VRM is active The maximum number of the index lines to display can be set for 2 3 or 6 on the INITIAL SETTING 3 menu NO2EBL Parallel wy Figure 1 36 Parallel index lines 1 34 1 27 1 Displaying erasing the index lines 1 Press RADAR MENU 4 key to display or erase the index lines FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 1 or 2 3 ORIGIN MARK 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 Figure 1 37 FUNCTIONS 1 menu 2 Orient the index lines in a desired direction with the EBL rotary control The azimuth of the index lines appear at the bottom of the screen 1 27 2 Adjusting index line intervals 1 Press RADAR MENU 0 to show the FUNCTIONS 2 menu FUNCTIONS 2 1 FUNCTIONS 1 2BKGD COLOR X BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECHO STRETCH OFF 1 2 3 4 ECHO AVERAGE OFF 1 2 3 5ECHOCOLOR YEL GRN COLOR 6 SHIP SPEED LOG NAV MAN MAN 00 0KT STW SOG 7 SET DRIFT OFF MAN SET 000 0 DRIFT 00 0KT 8 INDEX LINES NO 2 VRM MAN MAN 00 00SM 9 BRILLIANCE 1 0 FUNCTIONS 3 Figure 1 38 FUNCTIONS 2 menu Press the 8 key to select menu item 8 INDEX LINES Press the 8 key
91. e 1 5 Alarms Visual alarm To quit alarm status Target alarm TAZ Beeps Target flashes Press 2 key on FUNCTION 1 menu Paragraph 1 21 Watch alarm Beeps WATCH 0 00 The label WATCH turns red and time count freezes at 0 00 Press the AUDIO OFF key The label WATCH turns to normal video and the timer is reset Paragraph 1 33 3 Own ship lat lon Cursor lat lon in own ship position field in cursor position field Make sure that own ship position data is fed from external radionav equipment System failure Message BRG SIGNAL MISSING appears at screeb bottom No radar echoes SYSTEM FAILURE in red at bottom of screen during test Make sure the antenna switch in the tuning compartment is on Incorrect keystroke Double beep tone None Correct keystroke is responded by a single beep provided that KEY BEEP ON is selected at the RADAR 2 menu Log failure LOG appears in red if no log signal is input for 30 sec while the ship speed has been more than 5 0 kt If the log has failed use the Manual Speed mode or other appropriate sensor EPFS failure 1 54 Continuous beep EPFS in red in the warning and indication cell The indication also appears when the GPS mode is switched between GPS and DGPS To silence the beep press the AUDIO OFF key Fault Table 1 5 Alarms con t Audible alarm V
92. e and ARP 26 longitude grid lines Charts Plot symbols Note You should adjust the entire CRT brilliance by operating the BRILLIANCE control before adjusting the respective brilliance levels on the BRILLIANCE 1 and 2 menu 1 39 Display of Wind Tide Depth Time Wind Wind ocean current and depth sounding data can be displayed as follows 1 Press the NAV MENU key to show the NAV INFORMATION 1 menu 2 Press the 9 key twice to set WIND DATA ON and press the ENTER key 3 4 Press the 2 key twice to set WIND GRAPH ON and press the ENTER key Press the 0 key to show NAV INFORMATION 2 menu Echo sounding depth and tide 1 4 Do the same to indicate ocean current graph and echo sounding chart Depth scales can be selected among 10 20 50 100 200 and 500 m The echogram shows the last 30 minutes of depths along the ship s track Press the NAV MENU key followed by the 0 key to display the NAV INFORMATION 1 menu Press the 2 key to display WIND DATA ON and press the ENTER key Press the 5 key to display CURRENT GRAPH ON and press the ENTER key 5 Press the NAV MENU key to close the NAV MENU 1 52 Note Wind data and current data require appropriate sensors The depth data requires an adequate echo sounding equipment The echogram shows the last 30 minutes of depths along the ship s track Wind vector shows a direction from which the wind blows in relative to own ship hea
93. e equipment Only qualified personnel should work inside the equipment Wear a safety belt and hard hat when working on the antenna unit Serious injury or death can result if someone falls from the radar antenna mast Turn off the radar power switch before servicing the antenna unit Post a warn ing sign near the switch indicating it should not be turned on while the antenna unit is being serviced Prevent the potential risk of being struck by the rotating antenna and exposure to RF radiation hazard A WARNING Do not disassemble or modify the equipment Fire electrical shock or serious injury can result Turn off the power immediately if water A WARNING Do not place liquid filled containers on the top of the equipment Fire or electrical shock can result if a liquid spills into the equipment Do not operate the equipment with wet leaks into the equipment or the equip hands ment is emitting smoke or fire Electrical shock can result Continued use of the equipment can cause fire or electrical shock Keep heater away from equipment Heat can alter equipment shape and melt the power cord which can cause fire or electrical shock Use the proper fuse Fuse rating is shown on the equipment Use of a wrong fuse can result in equip ment damage Danger Warning Labels in Display Unit This display unit contains the danger warning labels shown below Do not remove the labels If a label is pe
94. e range and bearing from the origin mark to the target are shown at the screen center 5 To enter another origin mark press the ENTER key and the 3 key in the FUNC TIONS 1 menu Place the cursor where you want to place the origin mark then press the 3 key 6 To erase the origin mark select the origin mark number in the FUNCTIONS 1 menu by pressing the ENTER key and the 3 key repeatedly and then press the 3 key once again 350 000 330 NEU N 320 Ww 010 020 MTM 030 ny 040 2 2 Z Q 4 090 S y 2 300 x 060 290 2 070 280 o 2 080 090 1 Origin 260 2 100 2 Mark 250 2 Sno A E sine _ 01 gt 0 101SM 2 120 254 3 T 230 w 130 7 220 i ml 140 210 ann 150 primp 200 190 180 170 160 Range and bearing from origin mark to cursor Figure 1 39 Origin mark 1 36 1 28 2 Attaching ID number or symbol to origin marks Origin marks may be affixed with ID numbers or symbols corresponding to the keys in use 1 Press RADAR MENU 0 0 2 0 and 0 to show the RADAR menu 2 Press the 5 key twice to select the number or symbol 3 Press the ENTER key to conclude your selection 1 29 Zoom The zoom function enlarges an area of interest as large as twice the normal viewing Note that the zoom feature is inoperative when the display is off centered 1 Place the cursor close to the
95. e screen at positions where there is no target or disappear even if there are targets They are however recognized if you understand the reason why they are displayed Typical false echoes are shown below 2 2 1 Multiple echoes Multiple echoes occur when a transmitted pulse returns from a solid object like a large ship bridge or breakwater A second a third or more echoes may be observed on the display at double triple or other multiples of the actual range of the target as shown below Multiple reflection echoes can be reduced and often removed by decreasing the gain sen sitivity or properly adjusting the A C SEA control True echo Own ship Target Multiple echo Figure 2 2 Multiple echoes 2 2 2 Sidelobe echoes Every time the radar pulse is transmitted some radiation escapes on each side of the beam called sidelobes If a target exists where it can be detected by the side lobes as well as the main lobe the side echoes may be represented on both sides of the true echo at the same range Sidelobes show usually only on short ranges and from strong targets They can be reduced through careful reduction of the gain or proper adjustment of the A C SEA control 9 Spurious Target B True Figure 2 3 Sidelobe echoes 2 3 2 2 3 Virtual image A relatively large target close to your ship may be represented at two positions on the screen One of
96. earing Between Two Targets 1 Press the EBL OFFSET key and place the origin of the No 1 EBL for example on a target of interest target 1 in the illustrated example by operating the trackball 2 Turn the EBL control until the EBL passes through another target of interest target 2 3 Turn the VRM control until the range marker aligns with target 2 The active VRM readout at the lower right corner of the screen indicates the distance between the two targets You can repeat the same procedure on third and fourth targets by using the No 2 EBL and No 2 VRM Bearing is shown relative to own ship with suffix R or as a true bearing with the suffix T depending on EBL relative true settings on the RADAR 1 menu 5 To return the EBL origin to the own ship position press the EBL OFFSET key again Range 000 000 qus 330 i s wf Target 4 EBL No 1 VRM No 2 VRM 150 pi VRM 190 180 170 0 5008M 0 9805 200 Range bearing between targets 1 and 2 Figure 1 23 Measuring range and bearing between two targets 1 22 1 24 Setting a Target Alarm Zone A CAUTION A CAUTION The target alarm should not be relied The target alarm is given to targets upon as the sole means for detecting having a certain level of echo strength possible collision situations The opera This level does not always imply a land tor of a ship is not relieved of the re mass
97. een STANDBY and TRANSMIT status The antenna stops in STANDBY status and rotates in TRANSMIT status If the antenna does not rotate in TRANSMIT status check whether the antenna switch in the tuning compartment is in the OFF position The magnetron ages with time resulting in a reduction of output power It is highly recom mended that the radar be set to STANDBY status when not used for an extended period of time Note The example screens shown in this manual may not match the screens you see on your display The screen you see depends on your system configuration and equipment settings Quick start Provided that the radar was once in use with the transmitter tube magnetron still warm you can turn the radar into TRANSMIT condition without 3 minutes standby If the POWER switch has been turned off by mistake or the like and you wish to restart the radar promptly turn on the switch not later than 10 seconds after power off A Video Freeze up Recovery Video freeze up or lock up can occur unex pectedly on any digital rasterscan radars This is mainly caused by heavy spike noise in the power line and can be noticed by carefully watching the nearly visible sweep line If you suspect that the picture is not updated every scan of the antenna or no key entry is accepted notwithstanding the apparently normal pictures do Quick Start to restore normal operation 1 Turn off the POWER switch and within 10 seconds turn it on again 2
98. eling off or is illegible contact a FURUNO agent for replacement To avoid electrical shock do not Display unit may fall remove cover No user serviceable Lock stay before parts inside servicing Name Warning Label Type 86 003 101 1 Code No 100 236 230 44 WARNING 4 WARNING Possibility of injury Hold handle when mounting display unit Name Warning Label Type 03 144 1333 Code No 100 266 300 Name Warning Label Type 03 144 1332 Code No 100 266 290 4 DANGER a DANGER Electrical shock hazard Electrical shock hazard Do not touch anode cap Turn off power before t or its cable t servicing A DANGER Electrical shock hazard Do not touch parts inside t this cover AX Name Danger Label Type 14 055 4202 Code No 100 245 220 a w w Name Danger Label Type 66 022 2012 Code No 100 237 730 Name Danger Label Type 14 055 4201 Code No 100 243 450 Safely Instructions for ARPA ARP 26 Option A WARNING No one navigational aid should be relied upon for the safety of vessel and crew The navigator has the responsibility to check all aids available to confirm position Electronic aids are not a substitute for basic navigational principles and common sense e This auto plotter automatically tracks an automatically or manually acquired radar target and calculates its course and speed indicating them by a vector Since the data generated by the auto plotter are
99. en as they approach own ship These are due to the inherent property of the radiation pattern of the antenna To enhance target video use the echo stretch function There are 3 settings echo stretch 1 ES1 to enlarge in bearing direction for long range detection echo stretch 2 ES2 to enlarge in range direction and echo stretch 3 ES3 to enlarge in both bearing and range directions To activate the echo stretch 1 Press the RADAR MENU key to show the FUNCTIONS 1 menu 2 Press the 0 key to display the FUNCTIONS 2 menu FUNCTIONS 2 1 FUNCTIONS 1 2 BKGD COLOR BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECHO STRETCH 4 ECHO AVERAGE 5 ECHO COLOR 6 SHIP SPEED 7 SET DRIFT 8 INDEX LINES 9 BRILLIANCE 1 0 FUNCTIONS 3 OFF 1 2 3 OFF 1 2 3 YEL GRN COLOR LOG NAV MAN MAN 00 0KT STW SOG OFF MAN SET 000 0 DRIFT 00 0KT NO 2 VRM MAN MAN 00 00SM Figure 1 26 FUNCTIONS 2 menu 1 25 3 Press the 3 key to select ECHO STRETCH 4 Press the 3 key until Echo Stretch option 1 2 3 or OFF as desired is highlighted 5 Press the ENTER key to conclude your selection followed by the RADAR MENU key to close the FUNCTIONS menu Selected setting is indicated on the left side of the radar display a ES1 Enlarged b ES2 Enlarged c ESS Enlarged in bearing direction in range direction in both range and bearing directions Figure 1 27 Echo stretch Notes on use of echo
100. enna height m h2 target height m Radar horizon Optical horizon Figure 2 1 Radar horizon For example if the height of the antenna above the waterline is 9 meters and the height of the target is 16 meters the maximum radar range is Rmax 2 2 x W9 716 2 2 2 x 3 4 15 4 nm It should be noted that the detection range is reduced by precipitation which absorbs the radar signal 2 1 X band and S band In fair weather the above equation does not give a significant difference between X and S band radars However in heavy precipitation condition an S band radar would have better detection than an X band radar 2 1 2 Radar resolution There are two important factors in radar resolution discrimination bearing resolution and range resolution Bearing resolution Bearing resolution is the ability of the radar to display as separate pips the echoes re ceived from two targets which are at the same range and close together It is proportional to the antenna length and reciprocally proportional to the wavelength The length of the antenna radiator should be chosen for a bearing resolution better than 2 5 IMO Resolu tion This condition is normally satisfied with a radiator of 1 2 m 4 ft or longer in the X band The S band radar requires a radiator of about 12 feet 3 6 m or longer Range resolution Range resolution is the ability to display as separate pips the echoes received from two targets which are on the
101. enu 4 Press numeral key to select file to replay You can go to the next page by pressing the 0 key 5 Press the ENTER key 6 10 Initial Settings An item on the PLOTTER DISP SELECT menu can be deleted through the VIDEO PLOT TER INITIAL SETTING menu 1 Press the NAV MENU key 2 Press the 0 key twice to display the VIDEO PLOTTER INITIAL SETTING menu VIDEO PLOTTER INITIAL SETTING 1 VIDEO PLOTTER 2 2 DANGER HIGHLIGHT ON OFF 3 COASTLINE ON OFF 4 LAND DENSITY ON OFF 5 PLACE NAME ON OFF 6 MARK ON OFF 7 OWN SHIP PLOT ON OFF 8 TARGET PLOT ON OFF 9 CONTOUR LINE ON OFF 0 GRID ON OFF Figure 6 18 VIDEO PLOTTER INITIAL SETTING menu 3 Press appropriate numeral key to turn item on or off 4 Press the ENTER key 5 Repeat 3 and 4 Note If Video Plotter fails to provide intended functions turn ON the required functions on this menu Radar Menu Menu Tree RADAR MENU Key BRILLIANCE 1 m 1 FUNCTIONS 2 2 RINGS BRILL OFF DIM M1 M2 BRT 3 EBL BRILL DIM M1 M2 BRT 4 VRM BRILL DIM M1 M2 BRT FUNCTIONS 1 5 CURSOR BRILL OFF DIM M1 M2 BRT 1 TARGET TRAILS 6 CHAR BRILL DIM M1 M2 BRT 2 TARGET ALARM 1 or 2 7 MARK BRILL DIM M1 M2 BRT 3 ORIGIN MARK 1 to 10 8 TRAIL BRILL DIM M1 M2 BRT 4 INDEX LINES 9 HL BRILL DIM M BRT 5 ZOOM 0 BRILLIANCE 2 6 PULSE WIDTH 7 INT REJECT 0 8 ARPA 9 VIDEO PLOT 0 F
102. es eee 1 8 1 9 Enteng Own Ship SO 25er nope praeconem eo o 1 9 Presentation Modes eR 1 10 1 11 Selecting the Range ke ienen e 1 13 1 12 Selecting the Pulsewidth sss ementi de aur tenere Rr bn tend aee riot 1 13 T1 Adj sting the EH SIV IY SER deca ADM RR p dU RAT 1 15 UNES UEscRE Uum 1 15 1 15 Suppressing Precipitation ST asado tenue a 1 17 1 16 Interference HO queue teuer uen audience eee 1 17 1 17 the Ranga ET 1 18 1 18 5 the Bearing 22 ce e ero etie peice 1 20 1 19 Collision Assessment by Offset EBL 1 21 1 20 Measuring Range and Bearing Between Two Targets 1 22 1 21 Setting a Target Alarm ZOMG rei bir hat e Pa 1 23 eT P 1 25 CHG Strele H tO EO EE 1 25 1 24 Echo Averaging ces eh Se cea to measure asus ca ce 1 26 1 25 Electronic PISIS Aid EPA oat trem teo seals a 1 28 1 26 target WANG Pp RE 1 32 127 Parallel Index RE o tom 1 34 128 eie ni ci 1 36 UM ERR TRE 1 37 UBND mr 1 37 1532 Menu OUS 1 38 1 32 RADAR 1 2 and 3 Menu Settings nnt 1
103. essels 6 5 1 Stopping plotting of own ship s track 1 Press NAV MENU 5 in order to show the OWN SHIP TARGET PLOT menu OWN SHIP TARGET PLOT 1 VIDEO PLOTTER 1 2 RECORD OWN SHIP PLOT OFF ON 3 OWN SHIP PLOT INTVL 10 30SEC 1 2 3 6MIN 4 OWN SHIP PLOT COLOR RED MAGENTA YEL GRN CYAN BLU 5 RECORD TARGET PLOT OFF ON 6 TARGET PLOT INTVL 10 30SEC 1 2 3 6MIN 7 8 SMOOTHING OFF 1 2 3 6 7 8 9 Figure 6 7 OWN SHIP TARGET PLOT menu 2 Press the 2 key twice to select OFF 3 Press the ENTER key Own ship s track is neither plotted nor saved to the memory To resume plotting select ON at step 2 and press the ENTER key 6 5 2 Stopping plotting of other ship s track 1 Press NAV MENU 5 in order 2 Press the 5 key twice to select OFF 3 Press the ENTER key Other ship s tracks are neither plotted nor saved to the memory To resume plotting select ON at step 2 and press the ENTER key 6 5 3 Track plotting interval The memory stores ship s position in latitude and longitude at a sampling rate set on the OWN SHIP TARGET PLOT menu The position data so stored is used to display past own ship s track on the screen The plotting interval affects track reconstruction A shorter interval provides more accurate reconstruction of track however storage time of the track is reduced 1 Press NAV MENU 5 in order 2 To change own ship s track plotting interval press the 3 key several times to display
104. et mark symbol formed with two triangles R1 R2 R3 Changes to in 60 scans Notes on target based speed 1 When the reference target is lost or goes out of the acquisition range the reference target mark blinks and the speed reads xx x Select a different reference target in this case 2 When all targets are deleted the reference target mark is also deleted and the target based speed becomes invalid 3 The vector of the reference target can be displayed by menu operation ARPA 1 menu 7 Canceling target based speed Target based speed may be cancelled through the menu or by the cursor For menu press PLOT MENU 6 For cursor place the cursor on reference target and press the CANCEL key The speed is shown by LOG NAV selected previously 5 4 4 Deactivating the ARPA To deactivate the ARPA press the RADAR MENU key followed by the 8 key until the ARPA is deactivated Target plotting symbols and the on screen label ARPA will disap pear The label EPA appears 5 5 Automatic Acquisition The ARPA can acquire up to 30 targets 20 automatically and 10 manually or all 30 manu ally If AUTO ACQ is selected after more than 20 targets have been manually acquired only the remaining capacity of targets can be automatically acquired For example when 20 targets have been acquired manually then the ARPA is switched to AUTO ACQ Only 10 targets can be acquired automatically A target just acquired automatically is
105. ew The navigator has the responsi bility to check all aids available to confirm position Electronic aids are not a substitute for basic navigational principles and common sense 3 Digital charts cannot replace official nautical charts Digital charts are intended as an aid to navigation Position should always be checked against nautical charts as well as other aids to navigation Digital charts cannot replace the radar Digital charts can only show own ship s position relative to a chart feature coastline lighthouse etc They cannot show other vessels as does the radar Digital charts can never replace the radar 3 Handle chart memory cards carefully e Keep cards away from heat sources e Keep cards away from magnets and magnetic material e Replace cards in their protective cases after use TABLE OF CONTENTS INTRODUCTION sse treten viii SYSTEM CONFIGURATION sse ix 1 OPERATION on the POW m o EE 1 1 12 Transmitter ON 1 2 L3 Control Head uis Erro eR ERR epa Ede tdt 1 3 EXEC PR 1 5 1 5 YU E EET oem 1 5 1 6 On screen Legends and anb ins enis 1 6 1 7 Degaussing th CRI SOIN at eei dcr RUN RUN EHE HR EU MEUM 1 7 1 8 Initializing the Gyro Readout c
106. f the echo the discriminator indi cates the measured maximum range extent and total angular extent subtended by the echo If the echo is larger than a ship sized echo in range extent and or angular width adjusted as a function of range it is declared to be a coastline and the closet edge is put into memory as a map of the area This land outline is used to inhibit further acquisition and tracking of ship sized echoes beyond the closest coast outline 5 consecutive scans of coastal outline are retained in memory to allow for signal variation All smaller echoes are declared to be ship sized and the middle of the leading edge is used to provide precise range and bearing coordinates of each echo on every scan This range bearing data is matched to previous data and analyzed from scan to scan for consistency When it is 5 25 determined to be as consistent as a real target automatic acquisition occurs and tracking is initiated Continued tracking and subsequent calculation develop the relative course and speed of the target The true course and speed of own ship are computed from own ship s gyro and speed inputs and the resulting course and speed of each tracked target are easily computed by vector summing of the relative motion with own ship s course and speed The resulting true or relative vector is displayed for each of the tracked targets This process is updated continually for each target on every scan of the radar 5 18 3 Automatic acquisiti
107. follows 1 Press NAV MENU 8 to open WAYPOINT menu Press the 7 key to select WPT DATA If NAVAID is not in reverse video press the 7 key again Press the 2 key If ON is not in reverse video press the 2 key again Press the ENTER key o a A C N 6 7 4 Deleting waypoints Waypoints can be deleted individually or collectively through the waypoint list Deleting individual waypoints 1 Press NAV MENU 4 3 to display the WPT LIST 1 menu 2 Press the 0 key to display the page which contains the waypoint you want to delete 3 Press the 9 key and enter waypoint number in two digits 4 Press the ENTER key Deleting all waypoints 1 Press NAV MENU 9 to display the PLOTTER ERASE menu 2 Press the 5 key twice followed by the ENTER key Note Waypoints used for navigation lines cannot be deleted except by editing or deleting the navigation line 6 8 Navigation Lines 30 navigation lines may be entered and each line may have up to 30 waypoints 6 8 1 Entering new navigation line 1 Press NAV MENU 4 and 5 2 Press the 2 key 3 Enter navigation line number in two digits and press the ENTER key 4 Enter waypoint number in two digits and press the ENTER key 5 Repeat step 4 to continue entering waypoint numbers 6 Press the NAV MENU key to register navigation line 6 8 2 Adding waypoint to navigation lines To add waypoints to a navigation line 1 P
108. ft corner of the screen 3 Press the EBL OFF key to erase each EBL No 2 350 000 010 EBL 330 oe hil 030 Target SS ww bl bs Ung 04 7 3 Range markers B v on EBLs EBL 230 S 30 EBL 20 7 210 gt 032 5 lt 298 0 Active EBL is indicated with this marker S 140 sem wm d 150 Figure 1 21 How to measure bearing with EBL The EBL readout is affixed by R relative if it is relative to own ship s heading T true if it is referenced to the north as determined by the RADAR 1 menu settings Each EBL carries a range marker or a short line crossing the EBL at right angles Its distance from the EBL origin is indicated at the VRM readout whether or not the corre sponding VRM is displayed The range marker changes its position along the EBL with the rotation of the VRM control 1 20 1 19 Collision Assessment by Offset EBL The origin of the EBL can be placed anywhere with the trackball to enable measurement of range and bearing between any two targets This function is also useful for assessment of the potential risk of collision To assess possibility of collision 1 Press the EBL ON key to display or activate an EBL No 1 or 2 2 Place the cursor on a target appearing as threatening A in the illustrated example by operating the trackball 3 Press the EBL OFFSET key on the mode panel and the origin of the active EBL shifts
109. g at close range spiral dotting and or false targets may appear momentarily The interference rejector can clear the dis play To receive radar beacon or SART signals turn off the radar interference rejection and echo average which operate on the correlation technique 5 28 6 VIDEO PLOTTER RP 26 Option for NM type radar 6 1 General The Video Plotter RP 26 is an optional circuit board which is accommodated in the display unit of the radar It permits use of two memory cards a memory card RAM for storing the operator created radar maps and the other is a chart card ROM for storing FURUNO made digital charts The memory card enables the operator to create radar maps more precisely than the standard supplied radar map card 150 points per map Navigation lines can have as many segments and vertexes as required maximum 25 lines and 30 vertexes per line The card permanently retains the data you have entered from the radar display or by Lat Long positions Own ship and other ship tracks may be stored at a selected interval To display navigation lines RTE and WPL sentences are necessary WPL ID sentence re ceived in figure only The data can be copied for other ships of the same shipping com pany Charts are superimposed on the radar picture without disturbing the radar observation The chart area is dependent on the radar range in use Note RP 26 is not available with the statute mile SM type radar The drive for
110. g signal gyrocompass or magnetic compass HDG T GM Trigger signal from radar TRIGGER Video from radar VIDEO Bearing signal from radar antenna AZIMUTH Heading pulse from radar antenna HEADING Alarm available with or without ARPA 5 16 Trial Maneuver Trial simulates the effect on all tracked targets against own ship s maneuver without inter rupting the updating of target information There are two types of trial maneuvers static and dynamic 5 16 1 Dynamic trial maneuver A dynamic trial maneuver displays predicted positions of the tracked targets and own ship You enter own ship s intended speed and course with a certain delay time Assuming that all tracked targets maintain their present speeds and courses the targets and own ship s future movements are simulated in one second increments indicating their pre dicted positions in one minute intervals as illustrated in Figure 5 13 The delay time represents the time lag from the present time to the time when own ship will actually start to change her speed and or course You should therefore take into con sideration own ship s maneuvering characteristics such as rudder delay turning delay and acceleration delay This is particularly important on large vessels In the example shown in Figure 5 13 own ship will advance straight ahead even after a maneuver for a delay time of five minutes and then alters speed and course until opera tor specified intended speed and c
111. he ENTER key to conclude your selection followed by the RADAR MENU key to close the FUNCTIONS 2 menu The ship s speed readout at the top of the screen shows own ship s speed fed from the speed log preceded by the label LOG Notes on automatic speed input 1 IMO Resolution A 823 19 for ARPA recommends that a speed log to be interfaced with an ARPA should be capable of providing through the water speed data forward speed 2 Be sure not to select LOG when a speed log is not connected If the log signal is not provided the ship speed readout at the top of the screen will be blank In the event of a log error you can continue plotting by entering a manual speed 3 If a log signal interval becomes more than 30 seconds with the ship s speed five knots or more the radar regards the speed log is defective and LOG FAIL appears reading v KL 5 4 2 Manual speed input To manually enter the ship s speed with the numeric keys 1 Press the RADAR MENU key and the 0 key to show the FUNCTIONS 2 menu 2 Press the key 6 to select SHIP SPEED 3 Press the key 6 to select or highlight MAN 4 Press the ENTER key to conclude your selection At this point MAN 00 0KT ap pears at the bottom of the FUNCTIONS 2 menu 5 Enter the ship speed by hitting corresponding numeric keys followed by the ENTER key without omitting leading zeroes if any As an example if the ship speed is 8 knots press 0 8 ENTER For 4
112. igh density gate array and software expertise New cast aluminum scanner gearbox and new series of radiators Easy operation by combination of discrete keys rotary controls and menu operation all logically arranged and configured Electronic Plotting Aid EPA fitted standard Reliable CPA and TCPA warning in any plotting mode accurate target data e Stand alone or integrated configuration e A Video Plotter Chart Plotter is also optionally available viii SYSTEM CONFIGURATION XN12AF RSB 0074 063 XN12AF RSB 0075 063 XN20AF RSB 0074 063 XN20AF RSB 0075 063 XN24AF RSB 0074 063 XN24AF RSB 0075 063 ANTENNA UNIT DISPLAY UNIT RDP 126 NN ARPA Ed ARP 26 GYFOCOMPASS etit e Gyro Converter E Slave Display GC 8 FMD 8010 Navigator EC 61162 1 SeralData Video Plotter TTUTU Input Output RP 26 ee SUE RM co CE PE zl Performance Speed Log EC 61162 1 Serial Data Monitor p 9 Input Alarm Kit PM 30 Notavailableforstatute J J mile SM typeradar AC spec Rectifier Transformer Unit RU 3424 RU 1803 e e Ship s Mains 440 VAC Option 24 32 VDC e 1 50 60 Hz or 100 115 220 230 VAC 1 50 60 Hz AC spec or DC spec to be selected 1 OPERATION 1 1 Turning on the Power A DANGER Before turning on the radar make sure no one is near the antenna unit Serious injury
113. is hit by five consecutive radar pulses is detected as a radar echo Manual acquisition is done by designating a detected echo with the trackball Automatic acquisi tion is done in the acquisition areas when a target is detected 5 7 times continuously depending upon the congestion Tracking is achieved when the target is clearly distin guishable on the display for 5 out of 10 consecutive scans whether acquired automatically or manually Required tracking facilities are available within 0 1 32 nm on range scales including 3 6 12 nm Full plotting information is available within one scan when the range scale has been changed Targets not detected in five consecutive scans become lost targets 5 18 2 Quantization The entire picture is converted to a digital from called Quantified Video A sweep range is divided into small segments and each range element is 1 if there is radar echo return above a threshold level or 0 if there is no return The digital radar signal is then analyzed by a ship sized echo discriminator As the an tenna scans if there are five consecutive radar pulses with 1 s indicating an echo pres ence at the exact same range a target start is initiated Since receiver noise is random it is not three bang correlated and it is filtered out and not classified as an echo The same is true of radar interference Electronic circuits track both the closet and most distant edges of the echo At the end of the scanning o
114. is just visible on the screen To become acquainted with the way the GAIN control works try rotating it between fully counterclockwise and clockwise positions while observing the radar picture You will no tice that clockwise rotation increases the echo intensity level A low gain setting results in the loss of weak echoes and a reduced detection range If you turn the GAIN control too far clockwise for an excessive gain setting desired echoes will be masked in the strong background noise GAIN control RAIN A CSEA GAIN STBY TX RANGE Figure 1 13 Control head 1 14 Suppressing Sea Clutter In rough weather conditions returns from the sea surface are received over several miles around own ship and mask close targets This situation can be improved by properly adjusting the A C SEA Anti Clutter Sea control A C SEA control A CRAIN GAIN Ka c3 LJ CJ eae 3 A C SEA control off SEA control adjusted Figure 1 14 Control head A C SEA effect 1 14 1 Automatic anti clutter control The easiest way to suppress the surface clutter is to use the automatic anti clutter control Press the A C AUTO key to turn the A C AUTO circuit on or off A C AUTO appears at the bottom left hand corner of the screen when the A C AUTO circuit is on Use of a function key is also a good meth
115. isual alarm To quit alarm status SOG indication COLLISION None The label SOG Speed Made Good turns red when SOG option is selected on the menu and the associated SDME Speed and Distance Measuring Continuous beep Equipment speed log fails to detect a bottom tracking speed resulting in the Speed through water STW mode automatically The radar does not automatically reset itself to receive an SOG data even if the SDME regains a bottom tracking speed To erase SOG indication press keys RADAR MENU 0 6 TRUE VECTOR indication The label TRUE VECTOR turns red at the screen center when the True Vector is selected in the RM mode and returns to the normal text color in the North up TM mode UPDATE PLOT If you have failed to enter a next EPA plot within 10 min this indication flashes Plot symbol of target also flashes Re acquire the flashing target within 5 min Leave it if it is not important COLLISION Continuous beep COLLISION comes in red when EPA or ATA tracked target is on collision course Take evasive action or terminated tracking of target Then visual indications goes off Guard Zone Alarm GZ OUT Alarm Continuous beep The label GZ appears in red if a target enters a guard zone Target is masked by a flashing inverted triangle If the range scale has been reduced to make one of the GZs position more than 1 5 times of the range sca
116. ivate ON or deactivate OFF the second trace echo rejector 4 Press the ENTER key to register your selection followed by the RADAR MENU key to close the RADAR menu 1 37 Displaying External Waypoint and Navigation Line Waypoint or navigation line defined on another navaid can be displayed by setting WAYPOINT and NAV LINE menus as follows 1 Press the NAV MENU key 2 Press 8 2 for waypoint or 7 2 for navigation line if video plotter is not provided Note When the waypoint is more than 5000 nm away from own ship the data shows gt 5000 nm 1 50 1 38 Adjusting Brilliance of Screen Data You can adjust relative brilliance levels of various marks and alphanumeric readouts dis played on the screen by the steps below 1 2 Press the RADAR MENU key to show the FUNCTIONS 1 menu Press the 0 and 9 keys to show the BRILLIANCE 1 menu To display the BRIL LIANCE 2 menu further press the 0 key Select a desired menu item by pressing the corresponding numeric key As an ex ample press 8 in the BRILLIANCE 1 menu if you want to change the brilliance of target trails Further press the same numeric key as you pressed in step 3 above to select or high light a desired brilliance level Press the ENTER key to conclude your selection followed by the RADAR MENU key to close the menu RADAR MENU FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 10r2 3 ORIGIN MARK 1 to 10 4 INDEX
117. l of the target flashes If you want to continue plotting this target reacquire it within five minutes Other wise the target will be regarded as a lost target and its plot symbol and target data will be erased The larger the plotting interval the less accurate the plotted target data Plot ting of each target should normally be made every three or six minutes as far as possible You can use a Watch Alarm to warn yourself every three or six minutes or whichever you may set Within five seconds you can cancel a last plot by the TARGET CANCEL key and make a re entry at a different position After five seconds the last entry is processed to produce a vector 1 25 2 True or relative vector Vectors can be displayed relative to own ship s heading Relative or with reference to the north True Press the VECTOR key to select the required mode This feature is avail able in all presentation modes gyrocompass must be working correctly The current vec tor mode is indicated at the screen center 1 25 3 Vector time Vector time or the length of vectors can be set to 30 seconds 1 2 3 6 12 15 or 30 minutes and the selected vector time is indicated at the screen center 1 Press the PLOT MENU key followed by the 1 key several times to select vector time desired EPA 1 VECTOR TIME 30SEC 1 2 3 6 12 15 30MIN 2 COLLISION ALARM OFF ON CPA 0 0 SM TCPA 00 0 MIN 3 MARK STD LARGE 4 PLOT NO OFF ON Figure 1 31 EPA menu
118. le the label GZ OUT appears in red Press the AUDIO OFF key to acknowledge offending target Change the range scale of GZ 1 55 2 RADAR OBSERVATION 2 1 General 2 1 1 Minimum and maximum ranges Minimum range The minimum range is defined by the shortest distance at which using a scale of 1 5 or 0 75 nm a target having an echoing area of 10 m is still shown separate from the point representing the antenna position Itis mainly dependent on the pulselength antenna height and signal processing such as main bang suppression and digital quantization It is a good practice to use a shorter range scale as far as it gives favorable definition or clarity of picture The IMO Resolution A 477 XII and IEC 936 require the minimum range to be less than 50 m All FURUNO radars satisfy this requirement Maximum range The maximum detecting range of the radar Rmax varies considerably depending on several factors such as the height of the antenna above the waterline the height of the target above the sea the size shape and material of the target and the atmospheric conditions Under normal atmospheric conditions the maximum range is equal to the radar horizon or a little shorter The radar horizon is longer than the optical one by about 6 because of the diffraction property of the radar signal The Rmax is given in the following equation Rmax 2 2 x Vh1 Yh2 where Rmax radar horizon nautical miles hi ant
119. less you erase unneces sary marks Erasing individual marks 1 Operate the trackball to place the cursor on the mark you want to erase 2 Press the CANCEL key Erasing all marks and all lines 1 Press NAV MENU 9 in order 2 Press the 4 key twice to select MARK OFF followed by ENTER Erasing lines 1 Operate the trackball to place the cursor on the starting or end point of the line you want to erase Selecting the intersection of two lines erases both lines 2 Press the CANCEL key 6 7 Waypoints 6 7 4 Entering waypoints Maximum 100 waypoints numbered 00 99 can be entered by the trackball by latitude and longitude or at own ship position 1 Press NAV MENU 4 and 2 in order The following display appears ENTER WPT 1 ENTER WPT NAV LINE 2 ENTER WPT CURSOR L L OWN SHIP POSN 3 WPT NO XX XX XX XXXN S XXX XX XXXE W Figure 6 12 ENTER WPT menu 2 Press the 2 key several times to select CURSOR L L or OWN SHIP POSN whichever is preferred followed by the ENTER key 3 Press the 3 key twice 4 Do one of the following depending on option selected at step 2 CURSOR Operate the trackball to place the cursor at a location desired for waypoint L L POSN Enter latitude followed by the ENTER key enter longitude followed by the ENTER key OWN SHIP POSN No action at his stage 5 Enter waypoint number in two digits and press the ENTER key 6 To enter another waypoint re
120. like this 190 180 170 NY qw 150 Past position ARPA Equally time spaced positions of any targets being tracked Note not equally geographically spaced EPA Past plot positions may not be equally time spaced up to the operator Figure 1 47 Sample radar map 4 Press 1 7 in that order to display the NAV LINE menu 5 Press the 4 key twice to select NAV WIDTH ON and enter navigation width in nautical mile 6 Press the ENTER key followed by the NAV MENU key 1 49 1 35 5 Erasing contents of a radar map 1 Press NAV MENU 1 and 9 to display MAP ERASE menu MAP ERASE 1 RADAR MAP 2 DANGER HIGHLIGHT OFF ALL 3 COAST LINE OFF ALL 4 MARK OFF ALL 5 NAV LINE OFF ALL 6 PROHIBITED AREAS OFF ALL 7 BUOY OFF ALL 8 CONTOUR LINE OFF ALL Figure 1 48 MAP ERASE menu 2 Press a wanted number key twice to select ON or ALL followed by the ENTER key 3 Press the NAV MENU key to leave the menu 1 36 Suppressing Second trace Echoes In certain situations echoes from very distant targets may appear as false echoes sec ond trace echoes on the screen This occurs when the return echo is received one trans mission cycle later that is after a next radar pulse has been transmitted To activate or deactivate the second trace echo rejector 1 Press RADAR MENU 0 0 2 and 0 to show the RADAR 2 menu 2 Press the 9 key to select 2ND ECHO 3 Further press the 9 key to act
121. matically the message AUTO TAR GET FULL is displayed at the screen bottom 5 5 2 Auto acquisition areas Automatic acquisition is performed within 1 or 2 zones Outside these zones are the auto acquisition suppressed zones The zones can be set at 3 0 4 0 nm and or 5 0 6 0 nm or anywhere within 0 2 32 nm Predefined auto acquisition areas Menu item 3 6NM 1 Press the PLOT MENU key to show the ARPA 1 menu 2 Press the 3 key to select AUTO ACQ AREA 3 Further press the 3 key to select or highlight menu option 3 6NM 4 Press the ENTER key to confirm your selection followed the PLOT MENU key to close the ARPA 1 menu Figure 5 5 on the next page shows how the auto acquisition areas are displayed on the screen Up to 20 targets within the auto acquisition areas are acquired automatically There is no priority in acquisition It is recommended to use two zones on high speed craft If 30 targets have already been acquired manually in the MAN ACQ mode AUTO ACQ OFF on ARPA 1 menu no more targets can be acquired Figure 5 5 Predefined auto acquisition areas Free selection of acquisition zones Menu item SET To set auto acquisition areas with trackball 1 2 Press the 3 key to select AUTO ACQ AREA 3 4 Press the ENTER key to conclude your selection At this point the AUTO ACQ SET Press the PLOT MENU key to show the ARPA 1 menu Further press the 3 key to select or highlight SET
122. missions and suppresses randomly occurring signals There are three levels of interference rejection depending on the number of transmissions that are correlated These are indicated by the legends IR1 IR2 and IR3 at the upper left hand position of the screen Figure 1 17 Interference To activate the interference rejector 1 Press the RADAR MENU key The following appears FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 1 or 2 3 ORIGIN MARK 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 Figure 1 18 RADAR menu 2 Press the 7 key to select INT REJECT 3 Successive presses of the key increase the effect of interference rejection up to level 3 Afourth press deactivates the interference rejector Switch off the interference rejec tor when no interference exists otherwise weak targets may be lost Note For stable reception of certain types of radar beacons Racons or SART Search and Rescue Radar Transponder as required by SOLAS 1974 as amended 1988 GMDSS itis recommended to turn the interference rejector off 1 17 Measuring the Range Use the fixed range rings to obtain a rough estimate of the range to a target They are the concentric solid circles about own ship or the sweep origin The number of rings is auto matically determined by the selected range scale and their interval is displayed at the upper left position of the screen 1 17 1 Adjusting
123. mma 5 1 52 COMPOS dor ARPA Re tL 5 2 525 ARPA Men TRE 5 2 54A Stant Up Sco 5 4 5 5 nues ues mE 5 6 5 6 E 5 9 5 7 Changing Plot Symbol Size Plot 5 10 5 8 Adj sting Brilliance OF Plot Marks sirere ups ekz ES FREE Ch ecyecvessiabncpreiederczeas 5 12 59 Displaying larget Data 5 13 Vector Modes rera mee 5 14 Del Past Position DISMAY m 5 15 5 12 Set and Dritt Set and Rate ni 5 16 5 13 Setting GPA TGPA Alarm Ranges 5 17 514 Seting a Guard ZO Sia ip HDD a E R E 5 18 5 15 Operational Warnings m t TE 5 20 SWINE ome 5 21 517 ARPA Performance Utitur ttai dnm MURDER ETE uS 5 24 5 18 Criteria tor Selecting Targets Tor Tracking 5 25 5 19 Factors Affecting ARPA Functions dicii eren dece en enean 5 26 6 VIDEO PLOTTER RP 26 Option for NM type radar General Tccoc M 6 1 6 2 The Video Plotter Display opener be bebat ebur 6 2
124. n Press the ENTER key to register selection For OWN SHIP POSN manual input of position do the following 1 Press the 4 key 2 Enter latitude in seven digits 3 Press the ENTER key If necessary to change to coordinate press 4 ENTER 4 Enter longitude in eight digits 5 Press the ENTER key If necessary to change to coordinate press 5 ENTER 3 Press the 0 key to go to next page the NAV INFORMATION 2 menu Select options as you did on the previous menu To return to the previous menu press 1 NAV INFORMATION 2 1 NAV INFORMATION 1 2 WIND GRAPH OFF ON 3 WIND UNIT m s KT 4 CURRENT DATA OFF ON 5 CURRENT GRAPH OFF ON 6 DEPTH DATA OFF ON 7 DEPTH GRAPH OFF ON 8 DEPTH SCALE 10 20 50 100 200 500 9 DEPTH UNIT m ft 0 NAV INFORMATION 3 Figure 6 5 NAV INFORMATION 2 menu 4 Press 0 to display the NAV INFORMATION 3 menu NAV INFORMATION 3 1 NAV INFORMATION 2 2 WATER TEMPERATURE OFF ON 3 DATE OFF GMT LOCAL txx xH 4 5 6 When the radar is a component of an INS Figure 6 6 NAV INFORMATION 3 menu 5 To set time indication press the 3 key several times to select OFF UTC or LOCAL and press the ENTER key To use local time select LOCAL and enter time difference between local time and GMT 6 Press the NAV MENU key to close the menu 6 5 Track This section provides the information necessary for setting the track display conditions of both own ship and other v
125. n correction 6 3 data recording 6 16 data replaying 6 17 displaying charts 6 3 external waypoint on off 6 13 graphics on off 6 4 initial settings 6 17 line erasure 6 10 mark entry by cursor own ship position 6 9 mark entry by L L position 6 9 mark erasure all 6 10 mark erasure individual 6 10 memory card formatting 6 16 memory used display 6 7 nav data on off 6 4 navigation line deletion all 6 14 navigation line deletion individual 6 14 navigation line entry 6 13 navigation line list 6 14 navigation line on off 6 15 other ships track plotting on off 6 6 own ship s track plotting on off 6 6 track erasure 6 8 track plotting interval 6 6 track smoothing 6 7 waypoint addition to navigation line 6 14 waypoint deletion all 6 13 waypoint deletion individual 6 13 waypoint entry 6 11 waypoint list 6 11 waypoint on off 6 12 waypoint removal from navigation line 6 14 Virtual image 2 4 VRM Variable Range Marker 1 19 VRM OFF key 1 19 VRM ON key 1 19 W Watch alarm 1 42 Z Zoom 1 37 Index 2
126. nd activate the guard zone 1 Press the PLOT MENU key to show the ARPA 1 menu 2 Press the 4 key to select GUARD ZONE 3 Further press the 4 key to select or highlight ON to activate the guard zone 4 Press the ENTER key to conclude your selection 5 Press the 5 key to select GUARD ZONE SET At this point the GUARD ZONE SET menu appears GUARD ZONE SET 1 ARPA 1 2 1 2 Figure 5 11 GUARD ZONE SET menu 6 Press the 2 key and the ENTER key 2 2 ENTER when setting the No 2 zone 7 Referring to figure below place the cursor at the outer left corner of the area point A 9 and press the ENTER key Place the cursor at the right edge of the area point B and press the ENTER key Note If you wish to create a guard zone having a 360 degree coverage around own ship set point B in almost the same direction approx 3 as point A and press the ENTER key If the range scale is changed to less than half of GZ the label GZ OUT appears in red Press the 1 key followed by the PLOT MENU key to close the ARPA 1 menu The guard zone like the example below appears on the display Note that the guard zone has a fixed radial extension width of 0 5 nm The label GZ is displayed on the screen when the guard zone is enabled D No 1 guard zone is available between 3 and 6 nm with a fixed range depth of 0 5 nm The No 2 guard zone may be set any 4 where when the No 1 guar
127. nu 1 37 1 30 4 Own ship symbol The own ship symbol C can be displayed erased on the RADAR 2 menu The symbol is scaled to indicate the length and beam of the vessel If the largest dimension of the sym bol gets smaller than 6 mm the symbol will disappear and own ship will be represented with a small dot or circle depending on the range in use Details should be entered during installation 1 31 Menu Keys Three menu keys are provided on the right hand corner of the control head RADAR MENU PLOT MENU and NAV MENU RADAR MENU Permits setting of basic radar parameters PLOT MENU Permits setting of Electronic Plotting Aid EPA parameters or the optional ARPA ARP 26 NAV MENU Provides a choice of navigation data for on screen display Also selects dis play data for the optional Video Plotter 5 fr f AN be I etic Mob AUDIO LAO NAV OFF MENU ff MENU fj MENU o 1J CIJ 3 V 7 A 4 x 5 Wie E ACQ CHART h EBL ALIGN MARK TARGET CILJ m e TARGET CU TM AC TRAILS RESET AUTO TARGET CANCEL M e cancel 0 ENTER X Figure 1 40 Control head menu keys Note Menu automatically goes off in 30 seconds if you do not press a key 1 38 1 32 RADAR 1 2 and 3 Menu Settings RADAR MENU key FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 1 or 2
128. o select MARK SIZE 3 Further press the 6 key to select or highlight STANDARD or LARGE as appropriate 4 Press the ENTER key to conclude your selection followed by the PLOT MENU key to close the ARPA 2 menu 5 10 5 7 2 ARPA symbols The symbols used in this equipment comply with IEC 60872 1 Item Status Remarks Automatically acquired targets Initial stage epvs symbol no 3 Broken square around an echo to indicate the target under acquisition and initial stage of tracking epvs symbol no 3 Broken square around an echo to indicate the target under acquisition and initial stage of tracking before steady state tracking Steady tracking epvs symbol no 4a Solid circle with vector indicating steady state tracking 60 scans after acquisition CPA alarm epvs symbol no 8 Plot symbol changes to an equilateral triangle flashing to indicate the target is predicted to come into CPA or TCPA CPA alarm acknowledge epvs symbol no 8 Flashing stops after CPA TCPA alarm is acknowledged Lost target epvs symbol no 9 Lost target is indicated by flashing diamond symbol The diamond is formed from two equal triangles Initial stage epvs symbol no 3 Plot symbol selected for a target acquired manually is shown in bold broken lines epvs symbol no 3 Bold broken square for 20 60 scans of antenna after acquisition Steady tracking ep
129. od for reducing sea clutter For this purpose presetting is required Consult a FURUNO representative fe 3 Nw gt RADAR PLOT NAV ORE MENU MENU MENU 9 1 0 9 2 ULJ V 7 OFF LOST CENTER VECTOR rARGET FERES A 4 amp 5 516 IART A CAUTION 7 TARGET DATA The auto function can erase weak targets TM AIC SET AUTO TARGET ICANCEL A C AUTO key Figure 1 15 Control head 1 14 2 Manual anti clutter control From the fully counterclockwise position slowly turn the A C SEA control clockwise For optimum target detection you should leave speckles of the surface return slightly visible The anti clutter sea control is often referred to as STC Sensitivity Time Control which decreases the amplification of the receiver immediately after a radar pulse is transmitted and progressively increases the sensitivity as the range increases A common mistake is to over adjust the A C SEA control so that the surface clutter is completely removed By rotating the control fully clockwise you will see how dangerous this can be a dark zone is created near the center of the screen and close in targets can be lost This dark zone is even more dangerous if the gain has not been properly adjusted Always leave a little surface clutter visible on the screen If no surfa
130. oes can be tracked if they are consistent enough to meet acquisition and tracking criteria but target course and speed data will be in error Blind and shadow sectors Radar shadow or blind areas caused by obstructions aboard ship for example funnels and masts in the path of the radar beam can result in reduction of radar beam intensity in that particular direction This may eliminate the detection of some targets The ARPA sys tem will lose track of targets shortly after they are lost on the radar picture and if they remain in a blind zone These targets will however be acquired and tracked when they pass out of the blind zone and again present normal radar echo The angular width and bearing of any shadow sector should be determined for their influence on the radar In certain cases false echoes in the shadow sector cause the ARPA system to acquire track and vector them Shadow sectors should be avoided 5 27 Indirect echoes A target at close range is usually picked up directly but it can also be received as reflec tion from a large flat surface This will result in the radar presenting two or more echoes on the display each at a different range The ARPA can acquire and track the false echo if itis detected by five consecutive scans Reduction in radar gain can eliminate the multiple echoing but care should be taken as range detection also will be reduced Radar interference If interference is extreme due to another radar operatin
131. on areas and suppression lines Performance of auto acquisition is enhanced by controlling the limit lines suppression line in the former series of FURUNO ARPAs In this new series of ARPAs the automatic acquisition rings are used instead of the limit lines Auto acquisition rings work as suppression lines when viewed from the opposite direction They should be placed clear of a landmass or shoreline The acquisition areas may be a full 360 degree circle or sector of any angles are gyro stabilize 5 18 4 Qualitative description of tracking error The FURUNO ARPA accuracy complies with or exceed IMO standards Own ship maneuvers For slow turns there is no effect For very high turning rates greater than 150 minute depending on gyro there is some influence on all tracked targets which last for a minute or two and then all tracked targets revert to full accuracy Other ship maneuvers Target ship courses lag 15 to 30 seconds at high relative speed or three to six seconds at low near 0 relative speed It is less accurate during a turn due to lag but accuracy recovers quickly 5 19 Factors Affecting ARPA Functions Sea returns If the radar anti clutter control is adjusted properly there is no serious effect because distant wave clutter not eliminated by this control is filtered out by more than one bang correlation and scan to scan matching of data Rain and snow Clutter can be acquired and tracked as targets Adjust the A C RA
132. ong a coast for hours and now you are ap proaching a harbor your final destination You will have to adjust your radar to change from the settings for coastal navigation to those for harbor approach Every time your navigating environment or task changes you must adjust the radar which can be a nui sance in a busy situation Instead of changing radar settings case by case it is possible to assign the function keys to provide optimum settings for often encountered situations The radar s internal computer offers several picture setup options to be assigned to each function key for your specific navigating requirements For instance one of the function keys may be assigned the buoy detecting function and labeled BUOY on the key top If you press this key the radar will be instantly set for optimum detection of navigation buoys and similar objects and the label BUOY is shown at the left margin of the screen If you re press the same key the radar returns to the previous settings 1 40 The picture setup options assignable to any of the function keys are as shown in the table below Table 1 2 Picture setup options Description Description Optimum setting for detecting Optimum setting for detecting navigation buoys small vessels vessels and other small surface objects Optimum setting for short range Optimum setting for long range detection using a range scale of scale of 6 SM or larger 3 SM or less CRUISING For cruising
133. or death may result if a rotating antenna strikes someone standing nearby The POWER switch is located at the left corner of the control head Push it to switch on the radar system To turn off the radar push it again The screen shows the bearing scale and digital timer in approximately 15 seconds after power on The timer counts down three minutes of warm up time During this period the magnetron i e transmitter tube is warmed for transmission When the timer has reached 0 00 the indication STBY appears indicating the radar is now ready to transmit pulses POWER switch Tuning Compartment Control Head Figure 1 1 Display unit Note Allow 10 seconds to elapse before turning off the power to permit writing of settings In warm up and standby condition you will see the message BRG SIG MISSING This is normal because a bearing azimuth signal is not yet generated when the antenna is not rotating ON TIME and TX TIME values shown at the bottom of the screen are the time counts in hours and tenths of hour the radar has been powered 1 1 1 2 Transmitter ON When the STANDBY status is displayed on the screen press the transmit switch labeled STBY TX on the control head of the display unit The radar is initially set to previously used range and pulsewidth Other settings such as brilliance levels VRMs EBLs and menu option selections are also set to previous set tings The transmit switch toggles the radar betw
134. ore you set an auto acquisition area Should this hap pen cancel tracking of less important targets or perform manual acquisition Canceling individual targets Use the trackball to place the cursor on a target to cancel tracking Press the TARGET CANCEL key Canceling all targets at a time Press and hold the TARGET CANCEL key down more than 3 seconds In the automatic acquisition mode acquisition begins again 5 6 Manual Acquisition In the auto acquisition mode AUTO ACQ ON up to 20 targets can be manually acquired in addition to 10 auto acquired targets When auto acquisition is disabled AUTO ACQ OFF up to 30 targets can be manually acquired and automatically tracked To manually acquire a target 1 Place the cursor on a target of interest by operating the trackball 2 Press the ACQ key on the control head The selected plot symbol is marked at the cursor position Note that the plot symbol is drawn by broken lines during the initial tracking stage A vector appears in about one minute after acquisition indicating the target s motion trend If the target is consistently detected for three minutes the plot symbol changes to a solid mark If acquisition fails the target plot symbol blinks It blinks until the LOST TARGET is pressed to acknowledge it as a lost target ra a Immediately after acquisition this plot L symbolis shown in broken lines b Within 20 scans or 1 min of the antenna L
135. orrect it 1 Press the RADAR MENU key to display the FUNCTIONS 1 menu FUNCTIONS 1 1 TARGET TRAILS 2 TARGET ALARM 1 or 2 3 ORIGIN MARK 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 Figure 1 8 FUNCTIONS 1 menu 2 Press the 0 key twice to display the FUNCTIONS 3 menu FUNCTIONS 3 1 FUNCTIONS 2 2 RADAR 1 3 FUNCTION KEY 1 4 FUNCTION KEY 2 5 FUNCTION KEY 3 6 FUNCTION KEY 4 7RADAR 102 8 INTER SWITCH 9 GYRO SETTING 0 FUNCTIONS 4 Figure 1 9 FUNCTIONS 3 menu 3 Press the 9 key to select the option GYRO SETTING 4 Rotate the EBL control to adjust the gyrocompass heading reading 5 Press the ENTER key to confirm the setting 1 9 Entering Own Ship s Speed EPA and any azimuth stabilized presentation modes require speed input and gyrocom pass signal The speed can be entered from a speed log automatic or through the plot ting keypad manual 1 9 1 Automatic speed input 1 Press the RADAR MENU key and the 0 key to show the FUNCTIONS 2 menu FUNCTIONS 2 1 FUNCTIONS 1 2 BKGD COLOR BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECHO STRETCH 2 3 4 ECHO AVERAGE OFF 1 2 3 5 ECHO COLOR YEL GRN COLOR 6 SHIP SPEED LOG NAV MAN MAN 00 0KT STW SOG 7 SET DRIFT OFF MAN SET 000 0 DRIFT 00 0KT SOG Speed over the ground is the Speed Made Good 8 INDEX LINES NO 2 VRM
136. ose the menu 1 5 1 Automatic tuning The radar receiver is tuned automatically each time the power is turned on thus there is no front panel control for tuning The tuning indicator and the label AUTO TUNE at the top right corner of the display unit show the tuning circuit is working 1 5 2 Manual tuning If you are not satisfied with the current tune setting follow these steps to fine tune the receiver 1 Set the tuning method to manual as described above 2 While observing the picture on the 48 mile scale slowly adjust the TUNE control in the tuning compartment and find the best tuning point CLL e M6 EE TUNE control ERROR lamp Figure 1 4 Control head showing tuning compartment 3 Make sure that the radar has been set to the best tuning point This condition is where the tuning indicator lights to about 80 of its total length Note that the tuning indicator will never extend to full length 1 5 1 6 On screen Legends and Markers Range Range Ring Interval Range and bearing to cursor Presentation mode Pulselength Echo Averaging Interference Rej Echo Stretch Guard Alarm Cursor Rate of Turn Scale Heading Marker 2nd Trace Echo Rejector Heading Line 0 75 0 25SM 0 350SM 330 0 T 2ND ECHO HEAD UP RM 340 PULSE 1 M1439 EAV3 IR1 320 ES3 AUTO Tune
137. ou can change the size of the plotting symbols as follows 1 Press the PLOT MENU key to show the EPA menu 2 Press the 3 key two or three times until plot symbol size option STD standard or LARGE is highlighted 3 Press the ENTER key to conclude your selection followed by the PLOT MENU key to close the PLOT menu 1 26 Target Trails It is possible to display the trails of radar echoes in the form of synthetic afterglow The afterglow can be selected in a single tone or gradual shading as set on the RADAR 1 menu 1 26 1 True or relative target trails You may display target trails in true or relative motion only true trail on TM Relative trails show relative movements between targets and own ship True motion trails require a gyro compass signal and speed input to cancel out own ship s movement and present true target movements in accordance with their over the ground speeds and courses a True target trails b Relative target trails No smearing of All targets moving stationary targets relative to own ship Figure 1 32 Target trails Note When true trail is selected on the RM mode the legend TRUE TRAIL appears in red The TM modes always displays True trails To select true or relative target trail presentation 1 Press the RADAR MENU key followed by 0 0 and 2 to display the RADAR 1 menu 1 32 RADAR 1 1 FUNCTIONS 3 EBL1 REL TRUE 3 EBL2 REL TRUE 4 VRM1 NM km 5 VRM2 NM km
138. ourse are achieved position OS7 in this example 5 21 own ship position Figure 5 13 Trial maneuver Note that once a dynamic trial maneuver is initiated you cannot alter own ship s trial speed course or delay time until the trial maneuver is terminated 5 16 2 Static trial maneuver A static trial maneuver displays only the final situation of the simulation If you enter the same trial speed course and delay time under the same situation as in the aforemen tioned example of dynamic trial maneuver the screen will instantly show position OS7 for own ship position A7 for target A and position B7 for target B omitting the intermediate positions Thus the static trial maneuver will be convenient when you wish to know the maneuver result immediately Note For accurate simulation of ship movements in a trial maneuver own ship s charac teristics such as acceleration and turning performance should be properly set in the initial settings at the time of installation To perform a trial maneuver 1 Press the PLOT MENU key followed by the 0 key to show the ARPA 2 menu ARPA 2 1 ARPA 1 2 TRIAL MODE STATIC DYNAMIC 3 HISTORY OFF ON 4 HISTORY POINTS 5 10 20 5 HISTORY INTERVAL 30SEC 1 2 3 6MIN 6 MARK SIZE STD LARGE 7 GUARD ACQ STABILIZE NORTH CRT 8 INPUT SIG CHECK 1 9 ARPA TRACK TEST 0 Figure 5 14 ARPA 2 menu 5 22 T Press the 2 key to select TRIAL MODE Further press the
139. pass Signal When the gyro compass signal is lost the presentation mode automatically becomes head up and the HDG heading readout at the top right hand corner shows When the gyrocompass signal is restored gt RADAR PLOT NAV MENU MENU MENU Q Figure 1 11 Control head key panel the indication SET HDG appears at the upper right corneron the screen Press the MODE key and the asterisks go off Align the HDG readout with the gyrocompass reading referring to the paragraph 1 8 Finally press the CANCEL key to erase the message SET HDG Presentation mode representative display Description Heading North Marker Marker 990 0 010 20 asm Why 320 ww 2 S 47 SS us TAY 1 190 180 170 A display without azimuth stabilization in which the line connecting the center with the top of the display indicates own ship s heading The target pips are painted at their measured dis tances and in their directions relative to own ship s heading A short line on the bearing scale is the north marker indicating gyrocompass north A failure of the gyro compass input will cause the north marker to dis appear and the readout to show asterisks Heading Marker 230 240 250 210 NU ino 27 200 aem 7 S S 190 aV S Uy 2 100 S 090 Pg 030 070 060 050 Bearing scale ro
140. peat steps 4 and 5 6 7 2 The waypoint list To display all registered waypoints press NAV MENU 4 and 3 Waypoint 00 through 09 are shown Empty waypoints have all asterisks To go to next page press 0 Pressing 1 returns to previous page WPT LIST 1 ENTER WPT NAVLINE WPT XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE XX XX XX XXXN XXX XX XXXE 9 ERASE WPTxx 0 WPT LIST 2 Figure 6 13 WPT LIST 6 7 3 Displaying a waypoint A single waypoint may be shown on the display 1 Press NAV MENU 1 and 8 to choose the WAYPOINT menu WAYPOINT 1 NAV INFORMATION 1 2 WPT MARK OFF ON 3 WPT WPT Xx XX XX XXXN S XXX xx xxxE W 4 WPT LINE OFF ON 5 WPT NO OFF ON 6 WPT DISPLAY NO 1 ALL 7 WPT DATA VIDEO PLOTTER NAVAID 8 ARRIVAL ALARM OFF ON X XXNM XX XMIN Figure 6 14 WAYPOINT menu 3 Press the 2 key twice to select WPT ON and then press the ENTER key 4 Press the 3 key 5 Enter waypoint number in two digits and press the ENTER key The latitude and longitude position of the waypoint appear on the menu and the waypoint is displayed on the screen To hide the waypoint select OFF in step 3 and press the ENTER key 6 12 Showing external waypoint You can show the external waypoint from a navaid as
141. ph 1 26 Echo stretch 1 2 or 3 See paragraph 1 23 Pulsewidth 1 or 2 See paragraph 1 12 Echo averaging 1 2 or 3 See paragraph 1 24 Echo color See paragraph 1 32 Panel illumination Marks brilliance Noise rejection Provided that the function key is assigned the specific operation feature press the key to instantly set the radar for the preset purpose The corresponding label will be displayed at the left margin of the screen If you re press the function key the radar returns to the previous settings 1 41 1 33 3 Watch alarm The watch alarm sounds an external buzzer at selected time intervals to help you keep regular watch of the radar picture for safety or other purposes This feature can be as signed to function key 4 with a choice of alarm intervals of 6 10 12 15 and 20 minutes See the flowchart on page 1 45 for sequence Provided that function key 4 is assigned the watch alarm feature just press function key 4 to activate the feature The label WATCH appears at the lower right corner of the screen associated with a watch alarm timer counts down from the initial value for example 12 00 When a preset time interval has elapsed an audible watch alarm is released and the label WATCH turns red and the watch alarm timer freezes at 0 00 To silence the alarm press the AUDIO OFF key The label WATCH turns to normal color and the watch alarm timer is reset to the initial value and st
142. point of interest by operating the trackball 2 Press the RADAR MENU key to show the FUNCTIONS 1 menu 3 Press the 5 key The area around the cursor and own ship is enlarged twice as large as the original size and the label ZOOM appears at the lower left corner of the screen 4 To cancel zoom press the 5 key again on the FUNCTIONS 1 menu 1 30 Markers 1 30 1 Heading marker and heading line The heading marker and the heading line indicate the ship s heading in all presentation modes The heading line is a line from the own ship position to the outer edge of the radar display area and appears at zero degrees on the bearing scale in head up mode and in the north up and true motion modes it changes with ship s movement The heading marker appears as a small circle on the bearing scale to indicate the heading when the display is off centered or is in north up or TM mode Temporarily erasing heading line To temporarily extinguish the heading line to look at targets existing dead ahead of own ship press the HL OFF key The heading line reappears when the key is released 1 30 2 North marker The north marker appears as a short dashed line In the head up mode the north marker moves around the bearing scale in accordance with the gyrocompass signal 1 30 3 Stern marker The stern marker a dot and dash line appears opposite to the heading line This marker can be displayed provided that STERN MK ON is selected on the RADAR 2 me
143. ps CRT brilliance adjusted but 1 RADAR 1 2 3 menu settings 1 In case of single display install no picture ation without radar inter switching make sure RADAR 1 is selected on FUNCTIONS 3 menu 2 CRT voltage 2 Check high voltage supply with utmost care 3 SPU Board 3 Replace SPU Board Antenna not rotating 1 Antenna drive mechanism 1 Check scanner drive note that the message BRG mechanism SIG MISSING appears in ST BY 2 Defective antenna drive motor relay thermal relay 2 Press relay reset button K2 200 220 380 440 100 VAC 3 INT 9170 Board 3 Check that antenna switch is on 4 2 Table 4 2 Advanced level troubleshooting table con t Problem Check point and probable cause Remedy Alphanumeric data and marks are not displayed in Transmit status 1 SPU Board 1 Replace SPU Board Adjust GAIN control with A C SEA control set at minimum Marks legends and noise appear but no echo Transmission leak representing own ship position is absent Magnetron Modulator Board SPU Board Check magnetron current Replace Modulator Board Replace SPU Board Picture not updated Bearing Signal Generator Board antenna unit SPU Board Video lockup Check the connection of signal cable Replace SPU Board Turn off and on radar Incorrect orientation of picture SPU Board Gyro Interface The message HDG SIGNAL MI
144. radar can accommodate an ARPA Automatic Radar Plotting Aid module ARP 26 complying with IMO A 823 and IEC 60987 1 This chapter describes the operation of the ARPA For operation of normal radar refer to Chapter 1 Note ARP 26 is not available with statute mile SM type radar 5 1 2 Principal specifications Acquisition and tracking Automatic acquisition of up to 20 targets plus manual acquisition of 10 targets or fully manual acquisition of 30 targets between 0 2 and 32 nm Manual acquisition has prior ity over automatic acquisition Therefore if 20 targets have been manually acquired the capacity for automatic acquisition is 10 targets The ARPA automatically tracks all acquired targets whether manually or automatically acquired between 0 1 and 32 nm 0 1 and 24 nm depending on initial setting Manu ally acquired targets are indicated in bold symbols and the automatically acquired tar gets in thinner symbols Vector length Orientation Stabilization Motion trend Past positions Alarms Trial maneuver 0 5 1 2 3 6 12 15 30 minutes True velocity or relative velocity Sea or Ground as selected with the VECTOR key Displayed within 20 scans full accuracy within 60 scans after acquisi tion Choice of 5 10 or 20 past positions at intervals of 30 seconds 1 2 3 or 6 minutes Visual and audible alarms against targets violating CPA TCPA limits lost targets targets crossing guard zone system
145. range ring briliance 1 Press the RADAR MENU key to display the FUNCTIONS 1 menu 2 Press the 0 key to display the FUNCTIONS 2 menu 3 Press the 9 key to display the BRILLIANCE 1 menu BRILLIANCE 1 1 FUNCTIONS 2 2 RINGS BRILL OFF DIM M1 M2 BRT 3 EBL BRILL DIM M1 M2 BRT 4 VRM BRILL DIM M1 M2 BRT 5 CURSOR BRILL OFF DIM M1 M2 BRT 6 CHAR BRILL DIM M1 M2 BRT 7 MARK BRILL DIM M1 M2 BRT 8 TRAIL BRILL DIM M1 M2 BRT 9 HL BRILL DIM M BRT 0 BRILLIANCE 2 Figure 1 19 BRILLIANCE 1 menu 4 Press the 2 key to select RINGS BRILL 5 Press the 2 key again Each pressing gradually increases the brightness of the rings in 4 steps and the fifth pressing erases them 6 Press the ENTER key to confirm you selection 7 Press the RADAR MENU key to close the menu 1 17 2 Measuring the range with the VRM Use the Variable Range Markers VRMs for more accurate measurement of the range to a target There are two VRMs No 1 and No 2 which appear as dashed rings so that you can discriminate them from the fixed range rings The two VRMs can be distinguished from each other by different lengths of dashes 1 Press the VRM ON key to display either of the VRMs Successive presses of the VRM ON key toggle the active VRM between No 1 and No 2 and the currently active VRM readout is marked with 2 Turning the VRM control align the active variable range marker with the inner edge of the target of interest and
146. rds away from water and chemicals Keep the connector free of foreign material Do not drop the cards 6 3 2 How to display charts To display a chart 1 Insert the chart RAM card in one of two card slots k Eject button for X E upper card Eject button for Drive for Drive for chart card lower card chart or RAM card Figure 6 2 Card arives 2 Select the radar range with the RANGE keys The chart appears The following ranges are available 0 125 0 25 0 5 0 75 1 5 3 6 12 24 48 96 nm 6 3 3 Chart position correction There may be a case where the radar picture does not match the chart overlay This is due to an error in the position fixing system GPS Loran etc or the different coordinates between the position fixing system and the radar You can align chart with the radar image as follows 1 Press the CHART ALIGN key CHART ALIGN appears at the top of the screen 2 Rotate the trackball to shift the chart or own ship to the correct position 3 Press the CHART ALIGN key again Canceling chart correction 1 Press NAV MENU 0 to display the VIDEO PLOTTER 2 menu 2 Press the 2 key to select NAV DATA POSN 3 Press the ENTER key to cancel correction Navaid position data is restored The cursor position can be corrected on the ALIGN DATA submenu in the VIDEO PLOT TER 2 menu 6 3 6 4 Set up of Video Plotter Display 6 4 4 Hiding
147. re referenced to the sea using gyro heading and single axis log water speed inputs in the True Motion mode Ground stabilization is a mode where own ship and all targets are referenced to the ground using the ground track or set and drift inputs If the accuracy seems unsatisfactory enter the set and drift correction paragraph 5 12 5 10 2 True vector Vector mode True or Relative is selected with the VECTOR key True vectors are the predicted true motion of a target as a result of own ship s direction and speed input With true vectors the radar display will look like the one in a in the figure below In the true motion mode all fixed targets such as land navigational marks and ships at anchor remain stationary on the radar screen with vector length zero But in the presence of wind and or current vectors appear on fixed targets representing the reciprocal of set and drift affecting own ship unless set and drift values are properly entered Target on collision course Target on collision course A A flashing O Own ship B 9 a True vectors head up mode b Relative vectors in head up mode Figure 5 9 True and relative vectors in the head up mode 5 10 3 Relative vector True vectors are the predicted movement of a target relative to own ship With relative vectors the radar display will look like b in the figure above Relative vectors on targets which are not moving over the ground su
148. ress NAV MENU 4 and 5 2 Press the 2 key Enter navigation line number and press the ENTER key 3 Press the 8 key 4 Enter FROM waypoint number to add and press the ENTER key 5 Enter waypoint number to add 8 ADDING WPT 00 gt 00 Newly added waypoint 9 FROM waypoint 6 Press the NAV MENU key to close the menu 6 8 3 Removing waypoints from navigation lines 1 Press NAV MENU 4 and 5 2 Press the 2 key enter navigation line number and press the ENTER key 3 Press the 9 key enter waypoint number and press the ENTER key 6 8 4 Displaying navigation line list Press NAV MENU 4 and 6 to display the list 6 8 5 Deleting individual navigation lines 1 Press NAV MENU 4 6 and 9 2 Enter navigation line number you want to delete The line in use is not deleted 3 Press the ENTER key 6 8 6 Deleting all navigation lines 1 Press NAV MENU 9 2 Press the 6 key twice to select ALL 3 Press the ENTER key 6 8 7 Displaying navigation lines Navigation lines may be set up as follows 1 Press NAV MENU 3 2 Press the 2 key to select NAV LINE 3 If ON is not in reverse video press the 2 key again 4 Press the ENTER key NAVLINE 1 NAV INFORMATION 1 2 NAV LINE OFF ON 3 NAV LINE NO 4 NAV WIDTH OFF ON X XXNM 5 WPT NO OFF ON 6 WPT XX x 2e xx xx 7 NAVLINE DATA VIDEO PLOTTER NAVAI
149. s sub menu reads 6 MARK SIZE STD LARGE 7 GUARD ACQ STABILIZE NORTH CRT 8 INPUT SIG CHECK 1 9 ARPA TRACK TEST 0 1 ARPA 1 2 1 2 SET LEFT RIGHT BOUNDARY CANCEL PREVIOUS AREA CANCEL KEY Figure 5 2 Sequence for setting up ARPA 5 3 5 4 Start up Procedure The ARPA requires own ship s speed input and heading data The speed can be entered automatically from a speed log SDME Speed and Distance Measuring Equipment navaid or by referencing to a target based speed based on three max stationary objects Manual input is also possible 5 4 1 Automatic speed input For speed log input 1 Press the RADAR MENU key and the 0 key to show the FUNCTIONS 2 menu RADAR MENU key FUNCTIONS 1 1 TARGET TRAILS 2 GUARD ALARM 1 or 2 3 ORIGIN MARK 1 to 10 4 INDEX LINES 5 ZOOM 6 PULSE WIDTH 7 INT REJECT 8 ARPA 9 VIDEO PLOT 0 FUNCTIONS 2 0 key FUNCTIONS 2 1 FUNCTIONS 1 2BKGD COLOR BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECHO STRETCH OFF 1 2 3 4 ECHO AVERAGE OFF 1 2 3 5ECHO COLOR YEL GRN COLOR 6 SHIP SPEED LOG NAV MAN MAN 00 0KT STW SOG 7 SET DRIFT OFF MAN SET 000 0 DRIFT 00 0KT 8 INDEX LINES NO 2 VRM MAN MAN 00 00NM 9 BRILLIANCE 1 0 FUNCTIONS 3 Figure 5 3 Keying sequence for entering ship s speed 2 Press the 6 key to select SHIP SPEED 3 Press the 6 key to select LOG or NAV option 5 4 4 Press t
150. stretch 1 Ifthe 1 5 SM range is preset with a pulsewidth of S1 or S2 and the 3 SM scale with S2 the echo stretch is not available on these range scales 2 The echo stretch magnifies not only small target pips but also returns clutter from sea surface rain and radar interference For this reason make sure these types of interfer ence have been sufficiently suppressed before activating this function 1 24 Echo Averaging The echo average feature effectively suppresses sea clutter Echoes received from stable targets such as ships appear on the screen at almost the same position every rotation of the antenna On the other hand unstable echoes such as sea clutter appear at random positions To distinguish real target echoes from sea clutter this radar performs scan to scan corre lation Correlation is made by storing and averaging echo signals over successive picture frames If an echo is solid and stable it is presented in its normal intensity Sea clutter is averaged over successive scans resulting in the reduced brilliance making it easier to discriminate real targets from sea clutter To properly use the echo average function it is recommended to first suppress sea clutter with the A C SEA control and then do the following 1 Press the RADAR MENU key and the 0 key to show the FUNCTIONS 2 menu 1 26 FUNCTIONS 2 1 FUNCTIONS 1 2BKGD COLOR X BLK GRN CHAR BLK RED CHAR BLU ECHO AREA BLU BRT BLU 3 ECH
151. tates with gyrocompass signal H E A D U P T R U E B E A R G Radar echoes are shown in the same way as in the head up mode The difference from normal head up presentation lies in the orientation of the bearing scale The bearing scale is gyrocompass stabilized That is it rotates in accordance with the gyro compass signal enabling you to know own ship s heading at a glance This mode is available only when the radar is inter faced with a gyrocompass If the gyrocompass fails the bearing scale returns to the state of head up mode Heading North Marker Marker 350 000 040 pap SN moscoo W K Pig 4p Au og s 150 190 180 170 An azimuth stabilized display in which a line connect ing the center with the top of the display indicates own ship s intended course namely own ship s previous heading just before this mode has been selected Target pips are painted at their measured distances and in their directions relative to the intended course which is maintained at the 0 degree position while the heading line moves in accordance with ship s yawing and course change This mode is useful to avoid smearing of picture during course change After a course change press the CU TM RESET key to reset the picture orientation if you wish to continue using the course up mode The heading line gets back to scale zero 1 11 Presentation mode representative display Des
152. the ENTER key One line appears con necting designated two points Repeat step 4 to establish the coastline 6 To enter more than one of the same type of line after entering one line enter 21 and press the ENTER key Then repeat steps 2 to 5 7 To draw other lines enter line number for example 18 for contour line followed by the ENTER key Repeat step 3 8 To erase a line segment entered enter 22 place the cursor to the point to erase and then press the CANCEL key For example if point 4 is erased on the figure below line segment 3 4 is erased 1 48 1 35 3 Storing the map data When you have made a map store it with a map number as follows 1 Press NAV MENU 1 to display the RADAR MAP menu 2 Press the 7 key to show the ENTRY MAP menu 3 Press the 2 key and enter map number by numeral key followed by the ENTER key 4 Press the NAV MENU key to leave this menu 1 35 4 Displaying a radar map 1 Press NAV MENU 1 to display the RADAR MAP 2 Press the 3 key and enter the map number you want to display 3 Press the ENTER key North marker 000 350 010 20 hf 0 Heading marker 030 7 040 Waypoint P Z 75 099 Navline Separation zone 340 e MI W 820 hv bs gt 8 S S NS Y NN NN NN Dangerous side of own 220 ship safe contour may be 210 marked
153. the beacon Racon Figure 2 9 Appearance of RACON signal on the radar display 3 MAINTENANCE Periodic checks and maintenance are important for proper operation of any electronic systems This chapter contains maintenance instructions to be followed to obtain optimum performance and the longest possible life of the equipment A WARNING POWER Switch in AC Do not open the equipment Powered Display Unit Hazardous voltage which can FOR TECHNICIANS cause electrical shock exists inside the equipment Only The display unit designed to run on AC qualified personnel should power has a power switch inside its work inside the equipment base which cuts off 100 200 VAC power to the display unit Pull the display unit forward several centimeters to access the switch TURN THE SWITCH OFF as well as the main POWER switch WHENEVER ACCESSING INSIDE THE DISPLAY UNIT Turn off the radar power switch before servicing the antenna unit Post a warn ing sign near the switch indicating it should not be turned on while the antenna POWER Switch unit is being serviced Prevent the potential risk of being struck by the rotating antenna and exposure to RF radiation hazard Wear a safety belt and hard hat when working on the antenna unit Serious inj
154. the upper right corner on the screen 1 9 1 9 2 Manual speed input 1 Press RADAR MENU 0 to show the FUNCTIONS 2 menu Press the 6 key to select menu 6 SHIP SPEED Press the 6 key to select or highlight MAN Press the ENTER key to confirm selection At this point MAN 00 0KT appears on the FUNCTIONS 2 menu OO 5 Enter the ship speed by hitting corresponding numeric keys followed by the ENTER key without omitting leading zeros if any For example if the ship speed is 8 knots press 0 8 ENTER 6 Press the RADAR MENU key to close the FUNCTIONS 2 menu The ship speed readout at the top right hand corner shows own ship speed entered followed by the label MAN 1 10 Presentation Modes This radar has the following presentation modes Relative Motion RM Head up Unstabilised Head up TB Head up with gyrocompass stabilized bearing scale True Bearing where the bearing scale rotates with the gyrocompass reading Course up Gyrocompass stabilized relative to ship s intended course North up Gyrocompass stabilized with reference to north True Motion TM North up Ground or sea stabilized with gyrocompass and speed inputs 1 10 1 Selecting presentation mode Press the MODE key on the control head Each time the MODE key is pressed the presentation mode and mode indication at the upper left hand corner of the screen change cyclically MODE key Loss of Gyrocom
155. track In the busy traffic the screen may become cluttered You can remove all or a percentage of own ship track from the memory to clear the display Track of other ships can also be cleared 1 Press the NAV MENU key 2 Press the 9 key to display the PLOTTER ERASE menu PLOTTER ERASE 1 VIDEO PLOTTER 1 2 OWN SHIP PLOT 30 50 80 ALL TARGET PLOT 30 50 80 ALL 4 MARK OFF ALL 5 WPT OFF ALL 6 NAV LINE OFF ALL Figure 6 9 PLOTTER ERASE menu 3 Press the 2 key several times to select OWN SHIP PLOT and the amount of track points you wish to erase 4 Press the ENTER key 5 To erase other ship s track press the 3 key to select TARGET PLOT and the amount of track to erase Note Track cannot be restored once erased 6 Press the ENTER key 6 6 Marks Lines 6 6 1 Entering marks You can inscribe marks on the display to note important points for example a buoy or a wreck The mark capacity is 6 000 points Selecting method of entry Marks can be entered by cursor position L L position or own ship s position 1 Press NAV MENU 0 6 in order 2 Press the 6 key to select method of mark entry CURSOR L L or OWN SHIP POSN 3 Press the ENTER key 4 Press the NAV MENU key Entering marks lines at CURSOR or OWN SHIP POSITION 1 Select CURSOR or OWN SHIP POSITION following Selecting method of entry on the previous page Press the MARK key to display the ENTER MARK menu ENTE
156. ts Providing Range Bearing Course Speed CPA and TCPA Note EPA disabled when ARPA function is used 2 3 and 6 lines selectable on menu Built in interface accepts synchronized signal 20 50 V 50 400 Hz Built in interface accepts contact closure or DC signal at 200 400 or 500 pulses sm Built in interswitch for 2 channels provided 24 32 VDC 10 8 8 2 A 260VA 100 115 220 230 VAC 4 1 A 1 phase 50 60 Hz 410 VA 6 ENVIRONMENTAL CONDITION Ambient Temperature Complies with IEC60945 1 Q 3 4 Display Unit Antenna Unit Relative Humidity Water proofing Vibration 5 C to 40 C 25 C to 70 C 95 at 40 C Display Unit Panel IPX2 Antenna Unit IPX6 1 mm 10 2 5 to 13 2 Hz Maximum acceleration 7 m s 13 2 to 100 Hz SP 2 7 COATING COLOR 1 Display Unit Panel N3 0 dark gray Cover 2 5GY5 1 5 2 Antenna Unit N9 5 white 8 COMPASS SAFE DISTANCE Standard Steering Display Unit 1 40 m 1 05 m Antenna Unit 2 15 m 1 60 m SP 3 INDEX AUTO key 1 16 RAIN control 1 17 SEA control 1 16 1 29 Alarm messages 1 54 ARPA ARP 26 acquisition automatic 5 6 5 9 acquisition manual 5 9 activating 5 2 controls 5 2 CPA TCPA alarms 5 17 5 18 criteria for selection of targets 5 25 5 26 deactivating 5 6 factors affecting ARPA accuracy 5 26 5 28 guard zone 5 18 5 20 manual speed input 5 5
157. ury or death can result if someone falls from the radar antenna mast Display unit inside view 3 1 3 1 Interval Periodic Maintenance Schedule Table 3 1 Periodic maintenance schedule Check point Check and measures Remarks 3 to 6 months for quali fied tech nicians only Exposed nuts and bolts on antenna unit Check for corroded or loosened nuts and bolts If necessary clean and repaint them thickly Replace them if heavily corroded Sealing compound may be used instead of paint Apply a small amount of grease between nuts and bolts for easy removal in future Antenna radiator Check for dirt and cracks on radiator surface Thick dirt should be wiped off with soft cloth dampened with fresh water if a crack is found apply a slight amount of sealing compound or adhesive as a temporary remedy then call for repair Do not use plastic solvent acetone for cleaning If you need to remove ice from antenna unit use a wooden hammer or plastic head hammer Crack on the unit may cause water ingress causing serious damages to internal circuits 3 to 6 months for quali fied tech nicians only Terminal strips and plugs in
158. using a range scale of HARBOR Optimum setting for short range 1 5 SM or larger navigation in a harbor area using a range scale of 1 5 SM or less For coastal navigation using a Transoceanic voyage using a range scale of 12 SM or less range scale of 12 SM or longer Optimum setting for rough weather Optimum setting for navigation on or heavy rain a river Each picture setup option defines a combination of several radar settings for achieving optimum setup for a particular navigating situation Those involved are interference rejec tor echo stretch echo average automatic anti clutter pulselength and noise rejector set tings Adjusting these features on a function key menu changes the original function key set tings To restore the original settings for a particular function key it is necessary to display the relevant function key menu and select appropriate menu options Note Function key presetting requires a good knowledge of optimum radar settings If you want to change the original function key settings consult your nearest FURUNO rep resentative or dealer 1 33 2 Specific operation Most often used controls are placed on the center panel while less often used controls are provided in the menu To avoid opening the menus to set up the radar for a particular situation function keys 1 2 3 and 4 may be assigned a combination of the following settings at the time of installation Target trails See paragra
159. vs symbol no 4a Manual plot symbol in a bold solid circle 60 scans after acquisition CPA alarm collision course epvs symbol no 8 Plot symbol changes to an equilateral triangle flashing if a target is predicted to come into the preset CPA or TCPA epvs symbol no 8 Flashing stops after CPA TCPA alarm is acknowledged Lost target epvs symbol no 9 Lost target is indicated by flashing diamond symbol The diamond is formed from two equal triangles one apex up and the other apex down Guard zone alarm On target passing thru operator set guard zone epvs symbol no 7 Plot symbol changes to an equilateral triangle apex down flashing together with vector if target entering guard zone Automatic acquisition area 5 0 6 0 nm 3 0 4 0 nm or anywhere epvs symbol no 2 Sector of full circle as selected by the operator Target selected for data readout On selected target epvs symbol no 8 Target data range bearing course speed CPA and TCPA Reference target R1 In 60 scans changes to On On reference target Used to calculate own ship s over the ground speed target based speed for ground stabilization ARPA symbols con t Item Symbol Status Remarks Trial T Bottom center Appears during execution of a trial maneuver maneuver flashing epvs symbol no 10 Performance XX Bottom center Appears during execution of a

Furuno FR-2125V Radar Detector User Manual

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