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Furuno FR-1710 User's Manual

1. 1 15 1 22 Setting a Target Alarm ZOriG c e Ee rt tn e RR RIEN RR HM RI I E RM ESL 1 16 1 23 O centering nei du etta 1 17 1 24 ECHO Averaging A tni he 1 18 1 25 Electronic Plotting Aid EPA 1 19 1 26 Target Trails Echo Tralls 1 22 1 27 Parallel Index eo et et eet t trabe prb p rerums 1 25 1 20 OIG PEN 1 25 525 C TRE 1 26 url iiem P m c 1 26 1 51 User Keys FTU iae edes odi ete t o 5 1 27 ENC TOM KEYS na do diae ds Hp ipae died dedu sand 1 27 1 33 Suppressing Second trace EChoeS e rere 1 29 1 34 Adjusting Brilliance of Screen Data usce e emt et km ER RR EX KR REX RR KR KO Kg DR 1 29 135 si tu ttes eO ROUEN P GbR 1 30 1520 TEIG coc vee bet x hel e o da d eue 1 30 1220 Enhanced c its Roch tutte ttv ico uer ecc dicia 1 30 1 38 Degaussing Interval 2 5 1 31 1 39 cm tc 1 31 1 40 Video Contrast 1 32 1 41 Deu M Ie M REESE 1 32 1 42 O
2. ON ECHO SIG 1 COLOR GRN COLOR 2 ECHO AVG OFF 0 5 1 2 3 3 INT REJ OFF 1 2 3 4 N REJ OFF ON 5 ENHANCE OFF ON 6 2ND ECHO OFF ON 7 CONTRAST 1 2 3 8 9 0 Figure 1 23 ECHO SIG menu 1 18 3 Press the 2 key to select echo averag ing level OFF 0 5 1 2 3 from the ECHO AVG field OFF No averaging effect 0 5 Distinguishes small targets from sea clutter 1 Distinguishes 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 SELECT key to con clude your selection followed by the MENU key to close the menu a Echo average OFF b Echo average ON Figure 1 24 Echo averaging Echo averaging uses scan to scan signal cor relation 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 Echo average requires log and compass sig nals If you wish to use this feature without a compass signal consult a FURUNO repre sentative Manual speed entry is done at the menu item MAN SPD on the OTHER menu which is ac cessed by pressing the MENU and 0 twice keys 1
3. m o Igi gung MI 5 e 240 20 7 SS 230 2 7 220 My aS 140 210 MT S 150 180 170 North up Mode In the north up mode target pips are painted at their measured distances and in their true compass directions from own ship north being maintained up of the screen The heading line changes its direction according to the ship s heading If the compass fails the presentation mode changes to head up and the north marker disappears Also the HDG readout shows 1 7 Presentation mode representative display Description North marker re 000 010 Heading 380 030 marker 320 KO hy 220 iy NS 210 THp S 150 200 80 170 True Motion Mode Own ship and other moving objects move in accord ance with their true courses and speeds In ground stablized TM all fixed targets such as landmasses appear as stationary echoes In the sea stablized TM without set and drift input the landmass can move on the screen When own ship reaches a point corresponding to 75 of the radius of the display the own ship is automatically reset to a point of 7596 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 SHIFT key Automatic resetting is preceded by
4. DEGAUSS 1 4 2 DEGS INTV 305 1M 2M 3 DEGS DEG 459 90 135 Figure 1 50 DEGAUSS menu 4 Press the 2 key to select desired de gaussing interval OFF 1 5 10 min from the DEGS INTV field and then press the ENTER SELECT key 5 Press the 8 key to select desired de gaussing degree 45 90 135 from the DEGS DEG field For example selecting 45 will automatically degauss the screen when the ship makes a turn which is be tween 45 and 89 6 Press the ENTER SELECT key followed by the MENU key 1 39 Navigation Data Various navigation data can be displayed and their format selected with connection of appropriate external sensors You can se lect which navigation data to display as fol lows 1 Press the MENU key and then the 0 key twice show the OTHER menu 2 Press the 8 key twice to select display the NAV DATA menu 3 Press appropriate numeric key to turn data on off select format etc Press the ENTER SELECT key after setting each option Water temperature and depth dis plays are off in the default setting Note 1 OFF in the OS POSN field simply erases own ship position data it does not stop input of nav data from a navigation device Note 2 TIME DIF selects time system to use UTC or LOCAL UTC Local Time Dif 4 Press the MENU key All navigation data may be turned on off by the keying sequence of MENU 0 twi
5. TGT TRAIL 1 TIME 15S 30S 1M 3M 6M 15 30M CONT 2 MODE REL TRUE 3 SHADE MONO MULTI 4 LEVEL 1123 5 TRAILCOPY OFF 6 THIN TRAIL OFF 7 THINMODE 1234 Figure 1 32 TRAIL menu 3 Press the 3 key to select MONO or MULTI from the SHADE field as appro priate 4 Press the ENTER SELECT key and the MENU key in order Displaying erasing target trails Press the TGT TRAIL key to activate or de activate the target trails feature The current target trail setting is displayed at the upper right and corner of the screen To remove trails from the screen press the TGT TRAIL with a hit and release action Trailing continues off screen with target trail timer counting Press the key again to redisplay the trails Selecting trail time 1 Press the MENU key 2 Press the 2 key twice to select TGT TRAIL TGT TRAIL 1 TIME 155 30S 1M 6M 15 30M CONT 2 MODE REL TRUE 3 SHADE MONO MULTI 4 LEVEL 1 23 5 TRAILCOPY OFF ON 6 THIN TRAIL OFF ON 7 THIN MODE 11234 Figure 1 33 TRAIL menu 3 Press the 1 key to select time desired from the TIME field 4 Press the ENTER SELECT key and the MENU key in order Restoring trails Trails are cancelled and restarted whenever the range is changed However you can con tinue trails on the same range without re starting when th
6. 2 Press the 0 key twice to display the OTHER menu 3 Press the 6 key twice to display the MARK LINE menu MARK LINE iT 2 INDEXLINES 2 6 3 STERN MARK OFF ON 4 5 SHIP S MARK 360 55 BEARING SCALE Figure 1 55 MARK LINE menu 4 Press the 5 key to select 360 degrees or COMPASS 5 Press the ENTER SELECT key to reg ister your selection and the MENU key to close the menu 1 33 1 46 A D Converter Curve Setting Video signal threshold level and color output setting for the CRT are executed when the video signal is converted from analog to digi tal Select the A D curve according to objec tive referring to the table below The default setting is A 1 Press the MENU key 2 Press the 6 key twice to display the FUNC menu FUNC 1 FUNC1 2 FUNC2 3 Fel 4 Fe2 5 Fe3 6 A D CURVE C D Figure 1 56 FUNC menu 3 Press the 6 key to select A D curve set ting referring to the table below 4 Press the ENTER SELECT key followed by the MENU key Table 1 5 A D curve settings A lot of green but Float detection little red Noise is green in Reduce sea reflections General navigation Between A and Normal use Useful for C target discrimination Little green but lot of red Fine noise Noise in yellow and red Long range detection Buoy detection Little gree
7. 5 Press the ENTER SELECT key 6 Press the MENU key to close the menu 1 7 Degaussing the Screen Each time the radar is turned on the de gaussing circuit automatically demagnetizes the CRT screen to eliminate color contami nation caused by earth s magnetism or mag netized ship structure The screen is also degaussed automatically at certain time intervals which may be se lected on the menu While being degaussed the screen may be disturbed momentarily with vertical lines If you wish to degauss by manual operation push the EBL rotary con trol DEGAUSS control 1 8 Initializing the Compass Readout With a compass interfaced with the radar ship s heading is displayed at the top of the screen Upon turning on the radar match the on screen HDG readout with the compass reading by the procedure shown below Once you have set the initial heading correctly re setting is not usually required However if the HDG readout goes wrong for some reason repeat the procedure to correct it 1 Press the MENU key to display the main menu 2 Press the 0 key twice to display the OTHER menu OTHER 1 HDG SET 2 SPD MODE MAN LOG NAV LOG S BT LOG S WT MAN SPD DRIFT SET DISPLAY MARK LINE TUNE NAV DATA EBL VRM l DW Figure 1 7 OTHER menu 3 Press the 1 key to select HDG SET 4 Operate the VRM rotary control to dupli cate the compass rea
8. LOG serial data speed indication a Fore aft speed b Port starboard speed c Speed made good actual speed Pulse signal a only water tracking speed Serial speed a and b Water tracking speed relative speed including error due to wind current Ground tracking speed true speed no influence from wind currents Navigator speed cc Speed input c from navgator GPS etc c is converted to fore aft direction c and displayed on the radar screen 1 9 1 13 Pulselength Echo Stretch The ECHO control selects pulselength and echo stretch when it is not turned on witha user key F1 F2 F3 The pulselength in use is displayed at the upper left position of the screen using the abbreviations suffixed with P shown in the table on the next page Echo stretch level ES1 ES2 in use appears at the bottom left position using the indica tion ES1 or ES2 Appropriate pulselengths are preset to indi vidual range scales and function keys There fore you are not usually required to select them If you are not satisfied with the current pulselength settings however it is possible to change them by the ECHO control The ECHO control settings which can select the echo stretch are shown in the table below The legend and pulselengths are shown in below FR 1710 1725 FR 1760DS S1P 0 07 us SP 0 08 us S2P 0 15 us M1P 0 3 us M1P 0 3 us M2P 0 6 us M2P 0 5 us LP 1 2 us M3P
9. FR 1710 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 hands Electrical shock can result Keep heater away from equipment Heat can alter equipment shape and melt the power cord which can cause fire or electrical shock A WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment Only qualified personnel should work inside the equipment Turn off the radar power switch before servicing the scanner unit Post a warn ing sign near the switch indicating it should not be turned on while the scanner unit is being serviced Prevent the potential risk of being struck by the rotating scanner and exposure to RF radiation hazard Wear a safety belt and hard hat when working on the scanner unit Serious injury or death can result if someone falls from the radar scanner mast Do not disassemble or modify the equipment Fire electrical shock or serious injury can result Turn off the power immediately if water leaks into the equipment or the equip ment is emitting smoke or fire Continued use of the equipment 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 equipment damage Keep heater away from equipment Heat can alter equipment shape and melt the power cord whi
10. 51 51 0 75 1 1 1 1 S1P ES1 S2P S2P ES1 1 0 5 0 5 51 S1P S1P S1P S1P ES1 S2P S2P ES1 0 75 81 51 ES1 82 S2P ES1 ES1 1 5 1 0 75 S1P S1P S1P ES1 S2P S2P ES1 ES1 2 1 5 1 S1P S1P S1P ES1 S2P S2P ES1 ES1 3 2 1 5 51 51 52 52 ES1 1 ES1 2 51 4 3 2 ES1 S2P S2P ES1 ES1 2 M2P ES1 6 3 S2P ES1 ES1 2 ES1 51 8 4 4 S2P 51 ES1 2 ES1 51 12 6 6 S2P ES1 2 52 LP LP ES1 16 8 8 S2P ES1 M1P 2 51 LP LP ES1 24 12 12 51 2 51 LP LP ES1 LP ES2 LP ES2 32 16 16 2 51 51 LP LP ES1 LP ES2 LP ES2 48 24 24 M2P ES1 51 LP LP ES1 LP ES2 LP ES2 32 32 LP LP LP LP LP ES1 LP ES2 LP ES2 72 48 48 LP LP LP LP LP ES1 LP ES2 LP ES2 96 LP LP LP LP ES1 LP ES2 LP ES2 72 72 LP LP EP EP LP ES1 LP ES2 LP ES2 96 96 ES1 52 52 Table 1 1b ECHO control setting pulselength and echo stretch FR 1760DS Range ECHO Control Position and Pulselength and Echo Stretch Settings km sm nm 3 2 1 0 1 2 3 0 25 0 125 51 51 S1P 51 ES1
11. DISPLAY 1 7 2 NAV DATA OFF ON 3 DISPLAY MAIN SUB 4 SART OFF ON 5 PM OFF ON Figure 1 57 DISPLAY menu 4 Press the 5 key to select ON or OFF from the P M field as appropriate 5 Press the ENTER SELECT key followed by the MENU key When the performance monitor is turned on the radar is automatically set up as follows IR Off ECHO AVG Off ES Off A C AUTO Off N REJ Off RANGE 24 nm 1 36 RADAR OBSERVATION 2 1 General Minimum and maximum ranges Minimum range The minimum range is defined by the short est 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 scanner position It is mainly dependent on the pulselength scanner height and signal processing such as main bang suppression and digital quan tization It is a good practice to use a shorter range scale as far as it gives favorable defi nition or clarity of picture The IMO Resolu tion 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 sev eral factors such as the height of the scan ner 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 max
12. ECHO SIG 1 T TCOLOR GRN COLOR COLOR not shown 2 ECHO AVG OFF 05 1 2 3 HK type radar 3 INT REJ OFF i 2 4 OFF ON 5 OFF ON 6 2ND ECHO ON 7 CONTRAST 1 2 8 SWEEP OFF ON LINK ON FIX 9 SWEEPLVL 1 2 3 0 CNTR ENHANCE OFF ON FUNC 1 FUNC1 2 FUNC2 3 4 Fe2 5 Fe3 6 D CURVE A B C D viii PLOT MENU 1 D 1 MARK DISP OFF 2 ERASE 3 VEC REF TRUE 4 VEC TIME 305 1M 15M 5 CPA SET 0 5NM 1NM 1 5NM 2NM 4NM 5NM 6NM 6 TCPA SET 1M 2 3M 4M 5M 6M 12M 15M 7 TRACK OFF a ALARM Requires Automatic Tracking Aid 9 INTVAL 1M 2M 6 ARP 17 Option 0 4 J PLOT MENU 2 1 7 2 OFF ON SET 3 GUARD ZONE OFF ON SET 4 TRACK TEST 5 LANDDISCRIM 0 1 2 3 4 5 6 OFF REL TRUE 7 VEC START 20SCAN 8 REFTGT VECTOR OFF 9 TARGET BASED SPEED MARK E m 1 ERASE 2 MODE REL TRUE 3 BRILL PLOTTER BRILL 1 TGT TRAIL pe 1 1 T 2 CHARACTER 2 LAND 3 HDG LINE pj 3 GRID 4 EBL VRM pj 4 MARK 5 CURSOR jJ 5 OS TRACK 6 MARK pe 6 TGT TRACK E 7 PLOT pj 7 COLOR pu 8 OS SYMB 9 Requires Video Plotter RP 17 option OTHER 1 HDG SET 2 SPD M
13. Incorrect setting of index line interval 1 Adjust the brilliance of range rings with the intensity is increased 2 SPU Board a Set index line interval referring to paragraph 1 27 Replace associated circuit board if unsuccessful 2 Replace SPU Board Poor discrimination at range True motion presentation not working correctly 1 Sea clutter control not functioning properly 1 Poor contact of MODE key Selection is not accessed m Speed entry is incorrect TM display inaccurate Improper setting of A C SEA control If A C SEA is seen only at very close range suspect inaccurate frequency of crystal oscillator 1 Try to press MODE key a little harder 2 Press MODE key until TM appears 3 Enter correct own ship speed referring to paragraph 1 12 4 Make sure that speed and compass inputs are accurate Target not tracked correctly 1 Poor definition of targets in sea clutter 1 Adjust A C SEA and A C RAIN controls referring to paragraphs 1 14 and 1 15 3 6 3 7 Diagnostic Test A diagnostic test program is provided to en able testing of major circuit boards in the ra dar display unit Note that the normal radar picture is lost during this test Proceed as follows to execute the diagnostic test 1 Press the MENU key to shown the main menu Press the 0 key four times to select the OTHER sub menu Press the
14. are 3 7 PARTS 2 2 eee iod tenes uolet thura 4 1 eere cea edo de ea SP 1 INDEX Declaration of Conformity FR 1760DS INTRODUCTION A Word to the Owner of This 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 half a century FURUNO Electric Company has gained an unrivaled reputation as a world leader in the in dustry This is the result of our technical excellence as well as our worldwide distribution and service network Please carefully read and follow the safety information set forth in this manual before attempt ing to operate the equipment and conduct 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 proce dures Features FR 1760DS 60kW S band radar FR 1710 is 10kW X band radar and FR 1725 is 25kW X band radar B Daylight bright rasterscan 17 inch multi color high resolution display New microprocessing technology with high speed high density gate array and software expertise Easy operation by combination of discrete keys rotary controls and menu operation logically arranged and configured Electronic Plotting Aid
15. right side view Cooling Fan MMS 06C24DS R01 RP Board RP 17 option 03P9259A 28 DANGER Electrical shock 3 hazard L Do not touch parts in side this cover FR 1710 HV Board 03P9017A FR 1725 HV Board 03P9017B FR 1710 1725 DC PTU Board 03P9223A Figure 4 2 Display unit AC PTU Board 03P9228A B left side view FR 1760DS DC PTU Board 03P9223B MES CRT SPU Board LS 4 P 03P9230 GYRO CONVERTER Board option 64P1106A Figure 4 4 Display unit top view 4 2 FR 1760DS Scanner Unit MIC ATT Board ATT 7362 behind 29 IF 03P6570 MBS Board 03P6569 behind IF AMP J910 P910 STB 1 J601 P601 Figure 4 5 Scanner unit left side view J829 R811 R812 RF section MD Board 03 6668 Magnetron RTB Board 03 6666 03 9004 Pulse transformer CR808 CR809 T801 Figure 4 6 Scanner unit right side view FR 1760DS Scanner Unit con t PULSE GENERATOR a Fan motor Bi Board A MP 3795 3 B802 Scanner motor B801 Magnetron MG5240F Figure 4 7 Scanner unit right side view RF section removed MAG HTR DET Board A 03P6827 ia ee en __ Pulse transformer T801 L801 CR815 CR814 Relay 25 K801 K803 PFN Board D 2 03 6669 03 6668 Figure 4 8 RF section rear view 4 4 FR 1760DS
16. 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 2 1 Range resolution Range resolution is the ability to display as separate pips the echoes received from two targets which are on the same bearing and close to each other This is determined by pulselength only Practically 0 08 microsec ond 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 hav ing an echoing area of 10 m Bearing accuracy One of the most important features of the ra dar 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 fac tor in ensuring bearing accuracy To minimize error when measuring the bearing of a tar get put the target echo at the extreme posi tion on the screen by selecting a suitable range Range measurement Measurement of the range to a target is also a very important function of the radar Gen erally 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
17. 0 7 us LP 1 2 us On long ranges target echoes tend to shrink in the bearing direction making them diffi cult to see On short and medium ranges such as 1 5 3 and 6 nm scales the same size targets get smaller on screen as they ap proach the 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 two types echo stretch 1 ES1 to enlarge in bear ing direction for long range detection and echo stretch 2 ES2 to enlarge in range di rection Note 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 inter ference have been sufficiently suppressed before activating this function Enlarged in bearing circumferential with ES1 If a distant target is hard to see use ES 1 Enlarged with ES2 If a target becomes smaller as it approaches own ship use ES 2 Figure 1 10 Echo stretch Table 1 1a ECHO control setting pulselength and echo stretch FR 1710 1725 Range ECHO Control Position and Pulselength and Echo Stretch Settings km sm nm 3 2 1 0 1 2 3 0 25 0 125 S1P 1 1 1 ES1 51 51 0 5 0 25 0 25 1 1 1 51 ES1
18. 1 2 TRARSIMIMGE M 1 1 1 3 Control Descriptions ee 1 2 Tb BEA osos S 1 3 1 5 Control Panel ctetu ea hen Feud ent eei enirn enira 1 3 6 Tuning th DIRE 1 3 1 7 Degaussing the Screen 1 4 1 8 Initializing the Compass 0 2 00000 1 4 1 9 On screen Legends and Markers 1 5 1 10 Fresentetion Modes me 1 6 1 8 1 12 Entering Own Ship s Speed eda s np 1 9 T13 P lsele gth Echo RID qx aD aa aces oa qc ec que OUS 1 10 1 14 Adjusting the loas et eb e E 1 12 1 15 Suppressing Sea Clutter xx tui tan eae suia eut 1 12 1 16 Suppressing Precipitation GIULIGE David dx ooh oia et 1 13 1 17 Interference e e pese ere RE Pr ERE cR 1 13 1 18 Measuring the Range 1 14 1 19 Measuring ere urat eed tarn tee ote tdt 1 14 1 20 Collision Assessment by the Offset 1 15 1 21 Measuring Range and Bearing Between Two
19. 1 20 A D converter curve setting 1 35 Alarms 1 36 AUDIO OFF key 1 22 Background color 1 34 Battery replacement 3 3 Bearing measurement 1 14 Bearing scale format 1 34 BRILL control 1 3 Brilliance screen 1 3 screen data 1 30 C Clutter sweep 1 33 Compass readout adjustment 1 4 D DEGAUSS control 1 4 Degaussing interval 1 32 Diagnostic test 3 7 E EBL OFF key 1 14 EBL OFFSET key 1 15 EBL ON key 1 14 Echo averaging 1 19 ECHO control 1 10 Echo stretch 1 10 Electronic Plotting Aid EPA 1 20 1 23 CPA TCPA ranges 1 22 past plot points 1 23 plotting a target 1 20 silencing audio alarm 1 22 target data 1 21 terminating plotting 1 21 true relative vector 1 21 vector time 1 21 Enhanced video 1 31 Enlarging close in targets 1 35 F False echoes 2 2 2 3 Function keys 1 28 Fuse replacement 3 3 G GAIN control 1 12 GZ ALARM key 1 17 H Heading line 1 27 Heading marker 1 27 HM OFF control GAIN control 1 27 INDEX LINE key 1 26 Interference rejector 1 13 Maintenance schedule 3 1 Major parts life expectancy 3 2 MARK key 1 26 Menu tree viii MODE key 1 6 Multiple echoes 2 2 N Navigation data 1 32 Noise rejector 1 31 North marker 1 27 Offcentering 1 17 Origin marks 1 26 Panel backlighting 1 3 Parallel index lines 1 26 POWER switch 1 1 Performance monitor 1 37 Presentation modes 1 6 Pulselength 1 10 R RACON 2 5 RANGE key 1 8 Range measurement 1 14 Range scal
20. 2 key to select TEST Program numbers appear The diagnos tic test is executed and the screen shows test results as shown on the next page OKs appear for normal operation ARP re sults appear only when optional ARP Board is mounted If NG No Good ap pears corresponding components may be defective Consult your dealer Small squares and circles displayed on the test results screen are for testing the keys and controls As you operate the keys corresponding squares are highlighted in dicating that your control key operations are properly recognized Press the ENTER SELECT key to check the display circuit See page 3 9 To terminate the diagnostic test press the MENU key MENU key MENU 1 VIDEO PLOT 2 TGT TRAIL 3 TGT ALARM 4 PANEL DIM 5 ECHO SIG 6 FUNC 7 PLOT 8 MARK 9 BRILL 0 OTHER key TWICE OTHER HDG SET SPD MODE MAN SPD DRIFT SET DISPLAY MARK LINE TUNE NAV DATA EBL VRM MAN NAV lt IL key TWICE OTHER 127 2 TEST 3 DEGAUSS 4 TIME ALARM 5 RANGE 6 INSTALL 2 key TWICE to start test Figure 3 1 Sequence for diagnostic test 3 7 FR 1700 Series TEST 1 Program No 2 ROM Check 3 RAM Check 4 Antenna Rotation 5 Tx Trigger Frequency 6 Video Level 7 Video Signal 8 Navigation I O 1 9 Navigation I O 2 10 NMEA Heading IN 11 LOG Pulse IN ARP Test 1 Program No ROM Check RAM Ch
21. 25 Electronic Plotting Aid EPA 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 6th plot on a certain target the oldest plot past posi tion 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 Target data is shown in the data display area which shows range bearing course speed CPA and TCPA of the last plotted or selected target Target data Plotting time BRG CRS TRUE VECTOR 30sec SPD See note d below B 260 EPA symbols Target plotted Target plotted and data indicated Target on a collision course Note Target 2 is on acollision course as the extension of its vector goes through the own ship position Placing the offset EBL will help for assessment TCPA is counted up to 99 59 min and beyond that it is indicated as TCPA gt 99 59 MIN Figure 1 25 EPA display Note The EPA requires speed input auto matic or manual and a compass signal The vector and data are updated on real time be tween plot entries but do not neglect to plot a new position over a long period of time Otherwise the accuracy will be reduced Note that the plots will be lost when the comp
22. 51 ES1 0 5 0 25 0 25 51 S1P 51 51 ES1 51 S1P ES1 0 75 S1P S1P S1P S1P ES1 ES1 ES1 1 0 5 0 5 1 1 1 1 51 ES1 ES1 0 75 S1P S1P S1P S1P S1P ES1 ES1 1 5 1 0 75 S1P 51 1 S1P S1P ES1 51 2 1 5 1 51 51 51 51 ES1 1 ES1 3 2 1 5 51 51 ES1 1 ES1 2 M2P ES1 4 3 2 1 S1P S1P ES1 ES1 2 M2P ES1 6 3 S1P S1P M1P ES1 ES1 2 51 8 4 4 ES1 2 M2P ES1 ES1 12 6 6 ES1 2 M2P ES2 LP LP ES1 16 8 8 ES1 2 M2P ES1 ES1 24 12 12 ES1 2 M2P ES1 LP LP ES1 32 16 16 2 2 M2P ES1 ES1 52 52 48 24 24 2 2 M2P ES1 ES1 52 52 32 32 LP LP LP ES1 LP ES2 LP ES2 72 48 48 LP LP LP LP LP ES1 LP ES2 LP ES2 96 LP LP LP LP LP ES1 LP ES2 LP ES2 72 72 ES1 52 52 96 96 ES1 52 52 120 120 120 ES1 LP 52 52 1 11 1 14 Adjusting the Sensitivity The GAIN control adjusts the sensitivity of the receiver It works in precisely the same manner as the volume control of a broadcast receiver amplifying th
23. 6 Tuning the Receiver The radar is set for automatic tuning at the factory Automatic tuning The radar receiver is tuned automatically each time the transmitter is turned on The tuning indicator and the label AUTO at the top right corner of the display unit shows the tuning circuit is working The receiver may become detuned in automatic tuning if own ship s radar receives the radar signal of an other shipborne radar To retune press the STBY TX key twice Manual tuning 1 Set up for manual tuning following the procedure shown below 2 While observing the picture on the 48 mile scale press and hold down the GAIN control while slowly adjusting the VRM ro tary control to find the best tuning point This condition is where the tuning indica tor lights to about 80 of its total length Note that the tuning indication will never extend to full length Selection of manual or automatic tuning 1 Press the MENU key 2 Press the 0 key twice to display the OTHER menu OTHER 1 HDG SET 2 SPD MODE LOG NAV LOG S BT LOG S WT MAN SPD DRIFT SET DISPLAY MARK LINE TUNE NAV DATA EBL VRM ARO Figure 1 5 OTHER menu 1 3 3 Press the 7 key twice to display the TUNE menu TUNE iT 2 MODE AUTO MAN 3 TUNE SET Figure 1 6 TUNE menu 4 Press the 2 key to select the option AUTO or MAN from the MODE field
24. 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 inter rogating radar and be within the pass band of the radar receiver If the SART is within range the frequency match 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 2 3 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 Own ship s position Position of SART w Radar receiver bandwidth Low speed sweep signal Sweep start High speed sweep signal Figure 2 6 Appearance of SART signal on the radar display Showing SART marks on the radar display range scale between 6 and 12 nm with nor mal radar settings should display SART sig nals However this radar has a special feature which enhan
25. ALARM key again To silence the audible alarm you may press the AUDIO OFF key However in this case the label ACK does not appear Deactivating target alarm zone Hold the GZ ALARM key depressed for at least 5 seconds Inward and outward alarms The inward target alarm generates visual and audible warnings when a target enters the target alarm zone from any direction The outward target alarm is produced when a tar get leaves the target alarm zone This is not a target alarm by definition but some users find this feature valuable 77 Dashed line alarm m Alarm sounds when target violates alarm setting 6 79 7 Ts Target alarm m d INWARD ALARM V OUTWARD ALARM Figure 1 21 Inward and outward alarms 1 23 Off centering shift 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 a point speci fied by the cursor up to 75 of ranges other than 72 96 and 120 nm 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 operat ing the trackball 2 Press the SHIFT key Then the sweep origin is off centered to
26. CURS RNG 9 ECHO AVG 34 VRM1 RNG 10 INT REJ 35 VRM2 RNG 11 ECHO STRETCH 36 SWEEP 12 NOISE REJ 37 MARK MENU 13 ECHO ENHANCE 38 DISP MODE 14 2ND ECHO 39 A D CURVE 15 CONTRAST 40 DRIGIN MARK 16 PLOT MENU 41 DEST ON CSR 17 MARK MODE 18 BRILL MENU 19 DRIFT MENU 20 NAV DATA 21 DISPLAY 22 SART 23 TIME ALARM 24 STERN MARK 25 OS MARK Select by VRM knob and hit ENTER key 37 and 38 shown with connection of RP 17 OTHER 1 TEST DEGAUSS TIME ALARM RANGE INSTALL See Installation Manual DEGAUSS 1 7 2 DEGS INTV OFF 30S 1M 2M 3 DEGS DEG OFF 459 90 135 TIME ALARM 1 T 2 ALARM INTV 3M 6M 12M 15M 20M RANGE 2 RANGE 1 8 1 4 1 2 3 4 1 1 5 2 3 4 6 2 16 24 32 72 96 120 xii FR 1760DS Max range 120 NM FR 1710 Max range 72 NM FR 1725 Max range 96 NM OPERATIONAL OVERVIEW 1 1 Turning on the Power The POWER switch is located at the top left corner of the display unit Push it to switch on the radar set To turn off the radar push it again The screen shows the bearing scale and digital timer approximately 15 seconds after power on The timer counts down three minutes of warm up time During this period the magnetron that is the transm
27. Check contacts and plugs for sockets earth proper seating etc terminal 3 2 Life Expectancy of Major Parts Table 3 2 Life expectancy of major parts Part Type Code No Life expectancy Radar Type Magnetron MG5240F 60 kW 000 100 240 3 000 hours FR 1760DS Magnetron MG5241 000 100 036 3 000 hours FR 1710 Magnetron MG5436 000 140 762 3 000 hours FR 1725 3 2 3 3 Fuse Replacement Various fuses are used to protect the equip ment from overvoltage overcurrent or equip ment fault If the fuse blows find the cause before replacing If the fuse blows again after replacement request service A CAUTION Use the proper fuse Use of a wrong fuse can cause fire or equipment damage Table 3 3 Fuses Display unit 20A FR 1760DS Power Supply 2A Unit FR 1710 Display unit 20A DC unit FR 1725 10 100VAC 220VAC 3 4 Replacement of Batteries The GYRO CONVERTER Board option has a battery The battery for the RP Board pre serves data when the power is turned off and its life is about five years When the battery voltage is low NG No Good appears at the diagnostic test for the RP board When this happens contact your dealer to request re placement of the battery Table 3 4 Battery replacement information Board Battery Code Name Type Number RP Board ER3S 000 127 759 GC Board CR1 28 L 000 103 769 3 5 S
28. ECHO SIG 1 TGT COLOR YEL GRN COLOR 2 ECHO AVG OFF 0 5 12 3 3 INT REJ OFF 1 2 3 4 OFF 5 ENHANCE OFF 6 2ND ECHO OFF 7 8 9 0 Figure 1 45 ECHO SIG menu 3 Press the 4 to select OFF or ON from the REJ field as appropriate 4 Press the ENTER SELECT key to con clude your selection followed by the MENU key to close the menu 1 36 Time Alarm The time alarm gives an aural at a predeter mined interval To silence the alarm press the AUDIO OFF key The label T ALM turns to normal color and the timer is reset to initial value and starts the count down sequence again To activate the time alarm 1 Press MENU 0 twice and 4 twice to display the TIME ALARM TIME ALARM 2 ALARM INTV OFF 3M 6M 12M 15M 20M Figure 1 46 TIME ALARM menu 1 30 Press the 2 key to select desired interval 3 6 12 15 20 min from the ALM INTVL field Press the ENTER SELECT key to con clude your selection followed by the MENU key to close the menu 1 37 Enhanced Video 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 nm scales the same size targets get smaller on screen as they approach the own ship These are due to the inherent prop erty of the radiation pattern of the antenna To enhance target video use the enhanced v
29. FUNC key objectives Label Description COAST Optimum setting for short range detection using a range scale between 1 5 and 6 nm on calm seas OCEAN Optimum setting for long range detection using a range scale between 6 and 24 nm R SEA Optimum setting for heavy seas usng a range scale between 3 and 12 nm RAIN Optimum setting for heavy rain conditions using a range scale between 6 and 24 nm BIRD N Optimum setting for detecting birds using a range scale between 3 and 8 nm BIRD F 1 Press Optimum setting for detecting birds using a range scale between 16 and 24 nm the MENU key followed by the 6 key twice to display the FUNC menu FUNC 1 FUNC1 2 FUNC2 3 Fel 4 Fe2 5 Fe3 6 A D CURVE A C D Figure 1 41 FUNC menu Press 1 or 2 key twice to select func tion to program For example press the 1 key to program FUNC1 The following menu appears FUNC 1 MENU i T 2 FUNC SEL COAST R SEA RAIN BIRD N BIRD F 3 ECHO AVG OFF 0 5 12 3 4 INT REJ OFF 1 2 3 5 STRETCH OFF 1 2 6 N REJ OFF ON 7 ENHANCE OFF ON 8 CONTRAST OFF 11213 9 A C AUTO OFF ON Figure 1 42 FUNC1 menu Press the 2 key twice to select function desired Change other functions echo avg int rej etc if necessary Press the ENTER SELECT key to reg ist
30. VRM ro tary control provided that No 2 VRM is ac 2 22 Figure 1 36 Index lines Displaying erasing the index lines Press the INDEX LINE key to display erase the index lines Each press of the key turns the parallel index lines on enabling adjust ment by VRM EBL fixes them on the dis play or turns them off Selecting number of index lines to display Maximum number of the index lines can be set for 2 or 6 on the MARK LINE in the OTHER menu 1 28 Origin Mark You can mark any reference points promi nent target or a point of particular interest us ing the origin mark feature This mark is geographically fixed namely ground stabi lized Twenty such origin marks can be en tered This function is not available when the RP 17 board is installed To use the origin mark 1 Place the cursor at a point where you want to place a reference mark by oper ating the trackball 2 Press the MARK key The origin mark appears at the cursor position of which range and bearing are indicated at the upper right section of the screen Origin mark reference The origin mark can be set relative to own ship relative or referenced to land sea or ground stabilized 1 Press the MENU key 2 Press the 8 key twice to select MARK MARK 1 ERASE 2 MODE TRUE Figure 1 37 MARK menu 3 Press the 2 to select the REL or TRUE from the MODE field as appropriate 4 Press
31. do Quick Start to restore normal operation 1 Turn off the POWER switch and turn it on again within 10 seconds 2 Push the Transmit switch labeled STBY TX for Transmit status 1 1 1 3 Control Description Selects presentation mode Turns on off target trails Enables disables guard zone Off centers picture Turns zoom function on off Turns parallel index lines on off Offset EBL origin to measure range bearing between two targets predict collision course Turns power on off e pM Chart card slot Requires video plotter O 0000000000000 4 TRACKBALL Shifts cursor RINGS PREV MENU MENU CANCEL Inscribes mark Adjusts brilliance of fixed range rings Displays previous menu Opens closes menu Menu open Cancels item selected CLEAR ENTER Menu closed Erases mark SELECT Menu open Registers selection Menu closed Displays data of selected plot symbol ROTATE Adjusts gain ROTATE Adjusts screen brilliance PUSH Selects back ground color ROTATE Rotates EBL PUSH Degausses PUSH Temporarily erases heading line markers stern north OS symbol ROTATE Suppresses sea clutter PUSH Turns on off automatic clutter suppression Selects pulse length echo stretch Adjusts
32. in Figure 1 17 a If the EBL passes through the sweep origin own ship as illustrated Figure 1 17 b the target ship is on a collision course To return the EBL origin to the own ship position press the EBL OFFSET key again No 1 VRM 3 85NM EBL 140 0 R a Evaluating target ship s course and CPA in relative motion mode Cursor No 1 EBL EBL VRM 118 2 R b Target ship on collision course Figure 1 17 How to assess risk of collision 1 21 Measuring Range and Bearing Between Two Targets Press the EBL ON key to activate the No 1 EBL Press the EBL OFFSET key and place the origin of the No 1 EBL target of interest target 1 in Figure 1 18 by operating the trackball Turn the EBL rotary control until the EBL passes through another target of interest target 2 in Figure 1 18 3 Turn the VRM rotary control until the range marker on the No 1 EBL aligns with target 2 in Figure 1 18 The active VRM readout at the lower right corner of the screen indicates the distance between the two targets 4 To return the EBL origin to the own ship position press the EBL OFFSET key again 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 suffix T depending on EBL relative true settings on the OTHER m
33. the cursor posi tion However the heading line is left in the same position 3 Tocancel off centering press the SHIFT key again b Press SHIFT key to offcenter a Select location with cursor Figure 1 22 Off centered display Note The display is automatically shifted by 75 of the range in use whenever the cur sor is placed at an edge of the effective dis play area 1 24 Echo Averaging The echo average feature effectively sup presses sea clutter Echoes received from stable targets such as ships appear on the screen at almost the same position every ro tation of the scanner On the other hand un stable echoes such as sea clutter appear at random positions To distinguish real target echoes from sea clutter echo average performs scan to scan correlation Correlation is made by storing and averaging echo signals over successive picture frames If an echo is solid and stable itis presented in its normal intensity Sea clut ter is averaged over successive scans result ing 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 fol lowing 1 Press the MENU key 2 Press the 5 key twice to select the ECHO SIG menu SWEEP JON LINK ON FIX SWEEPLVL 1 2 CNTR
34. time No 1 EBL 23 0 R 9 22 12 34 urc 123 5 10230 4 465 NML No 1 VRM bearing i ja range No 2 EBL Date time Timer alarm No 2 VRM bearing Wee countdown Range bearing to waypoint Cursor position time to go Own ship position Figure 1 8 On screen legends and markers Note The cursor functions to measure the range and bearing to a radar target and is perma nently displayed It can be returned to the screen center by pressing the VRM rotary control 1 10 Presentation Modes This radar has the following presentation modes Head up Head up TB Course up North up and True Motion Selecting presentation mode Press the MODE key the panel at the When the compass signal is lost the buzzer sounds once the presentation mode becomes head up and the compass readout shows After restoring the compass signal press the MODE key to display the compass readout Readjust the compass readout as shown on page 1 4 Also HDG SIGNAL MISSING appears at the bottom of the screen Loss of Compass Signal right side of the display unit Each time the MODE key is pressed the presentation mode and mode indication at the upper left corner of the screen change cyclically Note When a failure occurs in the gyrocom pass the radar will automatically be switched to unstabilized presentation mode All com pass related data wil
35. 1 The message HD SIG MISSING appears when the heading pulse is not received during stand by 2 Replace gyro interface Tuning manually adjusted but poor sensitivity Deteriorated magnetron Detuned MIC Dirt on radiator face Second trace rejection is ON With radar transmitting on 48 nm range check magnetron current If current is below normal value magnetron may be defective Replace magnetron 2 Check MIC detecting current If it is below normal value MIC may have become detuned MIC must be tuned 3 Clean radiator surface 4 Disable the second trace rejector referring to paragraph 1 33 Range changed but radar picture does not change 1 Defective RANGE key 2 SPU Board 3 Mother Board 4 Video lockup 1 Try to hit and RANGE keys several times If unsuccess ful replacement of keypad may be required 2 Replace SPU Board 3 Replace Mother Board 4 Turn off and on radar 3 5 Table 3 7 Advanced level troubleshooting con t Problem Check point and probable cause Remedy Interference rejector inoperable interference rejection level not displayed 1 SPU Board 2 Mother Board 1 Replace SPU Board 2 Replace Mother Board Echo stretch ineffective Neither ES1 nor ES2 is displayed 1 SPU Board Replace SPU Board Only 2 parallel index lines 6 lines wanted Range rings are not displayed 1
36. 200 230 VAC 1 phase 50 60 Hz 2 3 A 24 rpm 3 2 A 42 rpm 100 115 200 230 VAC 1 phase 50 60 Hz 3 2 A 24 rpm 3 3 A 42 rpm 24 VDC 5 6 Antenna power supply unit 100 115 VAC 3 0 A 1 phase 50 60 Hz 5 DIMENSION AND MASS 220 240 VAC 1 phase 50 60 Hz optional rectifier required See Outline Drawing 6 ENVIRONMENTAL CONDITIONS 1 Ambient temperature Complies with IEC 945 2 Relative humidity 3 Water proofing 4 Vibration Display unit 15 to 55 C Antenna unit 25 to 70 C 95 at 40 C Display unit panel IEC60529 IPX2 Antenna unit IEC60529 IPX6 zd mm 909 2 5 to 13 2 Hz Maximum acceleration 7 m s 13 2 to 100 Hz 5 Category of Equipment Units Display unit To be installed in a protected area Antenna power supply unit To be installed in a protected area Antenna unit To be installed in an exposed area SP 3 Performance Monitor To be installed in an exposed area 7 COATING COLOR Display Unit Panel N3 0 Chassis 2 5GY5 1 5 1 2 Antenna Unit N9 5 8 COMPASS SAFE DISTANCE 1 2 3 Display unit Standard 1 15 m Antenna unit FR 1710 Standard 1 65 m FR 1725 Standard 2 15 m FR 1760DS Standard 4 40 m Antenna power supply unit Standard 1 20 m SP 4 Steering 0 90 m Steering 1 25 m Steering 1 60 m Steering 3 30 m Steering 0 90 m INDEX A A C AUTO control 1 12 A C RAIN control 1 13 A C SEA control 1 12 ACQ key
37. BT LOG S WT MAN SPD DRIFT SET DISPLAY MARK LINE TUNE NAV DATA EBL VRM 0 A Figure 1 9 OTHER menu 2 Press the 2 key to select the menu item SPD MODE 3 Press the 2 key again to select the LOG or NAV LOG Pulse input from speed log serial data NAV Speed data from naviga tion equipment About Ship s Speed Wind 2 current 4 Press the ENTER SELECT key to con firm your selection followed by the MENU key to close the menu Note Be sure not to select a LOG option or NAV when respective equipment is not con nected If the log signal or navaid signal is not provided the ship s speed readout at the screen top will be blank Manual speed input If the radar is not interfaced with a speed log or the speed log does not feed correct speed enter the ship s speed as follows 1 Press the MENU key and the 0 key twice to show the OTHER menu 2 Press the 2 key to select MAN from the SPD MODE field and then press the EN TER SELECT key 3 Press the 3 key twice to select the MAN SPD field 4 Enter speed with the numeric keys 5 Press the ENTER SELECT key to con firm your selection followed by the MENU key to close the menu 106 100 1 wr LOG or NAV speed indication 85 e Fore Aft LOG 8 7 WT 05 _ 5 GT
38. EPA fitted standard Automatic Tracking Aid ATA option Reliable CPA TCPA warning any plotting mode accurate target data The Clutter Sweep feature suppresses sea and rain clutters within an operator selected area A Video Plotter Chart Plotter and Performance Monitor are also optionally available SYSTEM CONFIGURATION FR 1760DS ANTENNA UNIT SN4A RSB 0051 N SNAA RSB 0051 1 SN5A RSB 0051 N SN5A RSB 0051 1 110 115 LA 220 Rectifier 16 50 60 Hz RU 3305 mc ede umm m mimm 100 VAC 16 50 60 pe en 100 110 e POWER 115 VAC SUPPLY 16 50 60 Hz UNIT PSU 002 220 VAC Rectifier 16 50 60 2 RU 1758 440 Rectifier Rectifier 10 50 60 Hz RU 1803 Serial Data GPS 5 DISPLAY UNIT RDP 120 Speed Log Pulse Input ATA Board CRH eee Remote Display water depth Guo Comener External Video Plotter Buzzer 4 21 __ 17 Board DEEELLLL LL i Option ES ictu Rectifier RU 3424 e e Ship s Mains 100 110 115 220 230 24 32 VDC 10 50 60 Hz vi FR 1710 1725 ANTENNA UNIT Serial Data GPS Bloque DISPLAY UNIT RDP 120 Pulse Inpu
39. LR OPERATOR S MANUAL MARINE RADAR MopEL FR 1710 1725 1760DS FURUNO ELECTRIC LTD NISHINOMIYA JAPAN FURUNO ELECTRIC CO LTD 9 52 Ashihara cho Nishinomiya Japan Telephone 0798 65 2111 Telefax 0798 65 4200 rights reserved Printed in Japan PUB No OME 34530 YOSH FR 1700 SERIES Your Local Agent Dealer FIRST EDITION NOV 1998 L APR 9 2001 00080837600 SAFETY INSTRUCTIONS A DANGER Before turning on the radar make sure that there is no one near the antenna Serious injury or even death may result if a rotating antenna strikes someone standing nearby A WARNING Radio Frequency Radiation Hazard The radar scanner emits electromagnetic radio frequency RF energy which can be harmful particularly to your eyes Never look directly into the scanner aperture from a close distance while the radar is in oper ation or expose yourself to the transmitting scanner 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 scanner unit is installed at a close distance in front of the wheelhouse your administration may require halt of transmission within a certain sector of scanner revolution This is possible Ask your FURUNO representative or dealer to provide this feature p ES FR reos BERETE es m wow _ ma e
40. N 6 2ND ECHO OFF ON 7 8 9 0 Figure 1 14 ECHO SIG menu 3 Press the 3 key to select interference rejection level OFF 1 2 or 3 from the INT field 4 Press the ENTER SELECT key 5 Press the MENU key 1 18 Measuring the Range Measuring range by the fixed range rings Use the fixed range rings to obtain a rough estimate of the range to a target They are 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 The fixed range rings may be turned on off and their brilliance adjusted with the RINGS key Measuring range by the variable range marker 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 circumscribed 2 Rotate the VRM rotary control clockwise or counterclockwise to align the active VRM with the inner edge of the target of interest and read its distance unit nm at the lower right corn
41. ODE LOG NAV LOG S BT LOG S WT 3 MAN SPD 4 DRIFT SET 5 DISPLAY 6 MARK LINE 7 TUNE 8 NAV DATA 9 EBL VRM 0 4 0 EBL VRM 2 CURS REL TRUE 3 EBL1 REL TRUE 4 EBL2 REL TRUE 5 CURS RNG NM KM SM 6 VRM1 SM 7 VRM2 SM DRIFT SET 1 7 2 SET amp DRIFT OFF ON 3 SET 4 DRIFT DISPLAY 1 7 2 NAV DATA OFF ON 3 DISPLAY MAIN SUB 4 SART OFF ON 5 PM OFF ON MARK LINE 1 T 2 INDEXLINES 2 6 3 STERN MARK OFF ON 4 SHIP S MARK OFF ON 5 BEARING SCALE 360 COMPASS TUNE 1 T 2 MODE AUTO MAN 3 TUNE SET NAV DATA 157 2 NAV SEL ANY GPS LC 3 EXT WP OFF ON 4 OS POSN OFF L L TD 5 DEPTH FA tt 6 TEMP 7 TIME DIF UTC LOCAL 8 LOCAL TIME FUNC 1 MENU 1 7 2 FUNC SEL COAST OCEAN R SEA RAIN BIRD N BIRD F 3 ECHO AVG OFF 051 2 3 4 INT REJ 1 2 3 5 STRETCH OFF 1 2 6 N REJ OFF ON 7 ENHANCE OFF ON 8 CONTRAST OFF 1 2 3 9 A C AUTO OFF 2 MENU 1 TRAIL TIME 26 HUTB MODE 2 TRAIL MODE 27 TUNE A M 3 TRAIL SHADE 28 EXT WP 4 TRAIL LEVEL 29 OS POSN 5 ALARM AREA 30 CURS BRG 6 ALARM MODE 31 EBL1 T R 7 PANEL DIMMER 32 EBL2 T R 8 COLOR 33
42. Power Supply Unit TX HV Board 2 4 03P6810 Transmitter gt section TX HV Board 1 03P6810 Transformer L Fan motor 801 Switch S801 Es A 03P9003 R813 magr meler 17 d Terminal board Fuse 801 ER Ej 2 802 7 Terminal board 1 803 Figure 4 9 FR 1760DS Power supply unit FR 1710 1725 Scanner Unit TB Board RF Module 03 9242 Motor Bow Side IF Board 03 9232 N MIC Assy RU 9253 For RTR 063 RU 9371 For RTR 062A 3 Diode Limitter RU 9099 RF module Upper part 4 6 Fan motor assy 03 1900 MD Board 03P9244 RT 9025 For RTR 062A RT 9023 For RTR 063 na o 2 o c A o Magnetron E3566 For RTR 062A MG5436 For RTR 063 4 7 Module Lower part 1 ANTENNA RADIATORS 1 2 3 4 5 6 7 8 9 SPECIFICATIONS MARINE RADAR Type Polarization Rotation Radiator length Horizontal Beamwidth 3 dB 20 dB Vertical Beamwidth Sidelobe attenuation XNI2AF XN20AF XN24AF SN4A SN5A Antenna Gain Wind Speed 2 RF TRANSCEIVER 1 2 3 4 5 Frequency Output Power Spurious Response IF Amplifier Bandwidth FR 1710 1725 FR 1760DS FR 1710 1725 1760DS Slotted waveguide array Ho
43. R SELECT key 4 Press the 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 vec tor length to evaluate the risk of collision with any target 1 20 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 be come true T relative to north The target data field always displays true bearing true course and speed over the ground Reading the target data Place the cursor on a plotted target and press the ENTER SELECT key Then the follow ing target data is displayed at the right side of the CRT RNG BRG Range Bearing Range and bearing from own ship to last plotted target with suffix T True CSE SPD Course Speed Course and speed are displayed for the last plotted tar get with suffix T True CPA TCPA CPA Closest Point of Approach is the closest range the 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 59 min and be yond that it is indicated as TCPA gt 99 59 MIN Terminating target plotting With the EPA you can plot up to 10 targets You may wish to terminate plotting of less important targets to newly plot ot
44. RM 1 AREA INO1 NO2 2 MODE1 IN ouT 3 MODE2 IN OUT Figure 1 19 TGT ALARM menu 2 Press the 1 key to select target alarm zone to use NO1 or NO2 3 Press the ENTER SELECT key 4 Press the MENU key 5 Place the cursor at point A see fig ure below using the trackball Press the GZ ALARM key GZ1 or GZ2 SET ap pears When both alarms are prepared the active alarm is circumscribed 6 Move the cursor to point B and press the GZ ALARM key again Then an echo watch zone as illustrated is created and the label IN or OUT replaces SET at the lower right corner of the screen Target alarm zone Figure 1 20 Target alarm Note 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 13 as point A and press the GZ ALARM key Two alarm zones can be set as described above To change the active alarm zone do steps 1 thru 4 in the above procedure When both alarms are prepared the active alarm is circumscribed Acknowledging alarm A target entering the target alarm zone pro duces both visual flashing and audible beeping alarms To silence the audible alarm press the AUDIO OFF key shortly ACK replaces IN or OUT This will deactivate the audible alarm but will not stop the flashing of the target in the guard alarm zone To reactivate the audible alarm press the GZ
45. WHT RED Menu YEL YEL YEL YEL RED Menu Highlight YEL YEL YEL YEL RED EBL VRM L BLU GRN GRN L BLU Range Rings GRN WHT WHT WHT GRN Cursor WHT GRN GRN GRN WHT Heading Line GRN WHT WHT WHT GRN Target Alarm WHT L BLU L BLU L BLU WHT Zone North Marker WHT L BLU L BLU L BLU WHT Stern Marker WHT L BLU L BLU L BLU WHT BLK Black BLU Blue L BLU Light blue WHT White GRN Green YEL Yellow 1 44 Selecting Range Scales Range scales to use may be selected as fol lows 1 Press the MENU key 2 Press the 0 key four times to display the OTHER sub menu OTHER 7 TEST DEGAUSS TIME ALARM RANGE INSTALL Figure 1 53 OTHER sub menu 3 Press the 5 key twice to select RANGE RANGE 1 T 2 RANGE 1814 1 2 3 4 1 4 5 2 3 4168 12 16 24 32 48 72 96 120 Figure 1 54 RANGE menu 4 Press the 2 key to place the underline under the range scale to select deselect and then press the ENTER SELECT key Active ranges are highlighted Repeat to select deselect other ranges 5 Press the MENU key 1 45 Selecting Bearing Scale Format The bearing scale may be displayed in de grees or compass points or degrees as fol lows 1 Press the MENU key
46. a beep sound If the compass fails the presentation mode is changed to the head up mode and the north marker disappears The HDG readout at the top of the screen shows North 340 350 000 010 620 marker TTE 030 Heading line 220 UID 210 7 aV ULT TD 200 go quj suo 160 a True motion is selected 340 350 000 010 020 Ogu nly 030 30 080 Lo pt ug py pt 200 ijo quj iro 160 b Own ship has reached a point 75 of display radius 340 350 000 010 Qoo c Own ship is automatically reset to 75 of radius Automatic resetting of own ship position in true motion mode Press the RANGE key to select a range 1 11 Selecting the Range Scale The range selected automatically determines the range ring interval the number of range rings and pulse repetition rate for optimal detection capability in short to long ranges You can select pulselength with the ECHO control For details see para graph 1 13 scale The range range ring interval and pulselength appear at the top left corner of the display 1 12 Entering Own Ship s Speed EPA requires an own ship speed input and compass signal The speed can be entered from a speed log or navaid automatic or through the plotting keypad manual Automatic speed input 1 Press the MENU key and the 0 key twice to show the OTHER menu OTHER 1 HDG SET 2 SPD MODE MAN LOG NAV LOG S
47. a predetermined interval and provide a rough estimate of the range to a target The variable range marker s diameter is increased or decreased so that the marker touches the inner edge of the tar get allowing the operator to obtain more ac curate range measurements 2 2 2 2 False Echoes Occasionally echo signals appear on the 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 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 dis play 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 sensitivity or properly adjusting the A C SEA control True echo at Target Onn ship Multiple echo Figure 2 2 Multiple echoes 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 Side lobes show usually only on short ranges and from strong
48. ails require a compass signal and own ship speed input to cancel out own ship s movement and present true target move 1 22 ments in accordance with their over the ground speeds and courses a True target trails no smearing of stationary targets b Relative target trails all targets moving relative to own ship Figure 1 29 Target trails Note When relative trail on the TM mode the legend REL TRAIL appears in red To select true or relative target trail presen tation 1 Press the MENU key 2 Press the 2 key twice to show the TGT TRAIL menu TGT TRAIL 1 TIME 15S 30S 1M 3M 6M 15M 30M CONT 2 MODE REL TRUE 3 SHADE MONO 4 LEVEL 1 2 3 5 TRAIL COPY OFF ON 6 THIN TRAIL OFF ON 7 THIN MODE 234 Figure 1 30 TGT TRAIL menu 3 Press the 2 key several times to select REL or TRUE from the MODE field as appropriate 4 Press the ENTER SELECT key to con firm your selection then the MENU key to close the menu Trail gradation Target trails may be shown in monotone or multitone Gradual shading paints the trails getting thinner with time just like the after glow on an analog PPI radar ou Gradual shading Single Multi Figure 1 31 Monotone and multitone target trails 1 Press the MENU key 2 Press the 2 key twice to select TGT TRAIL
49. ar or other plotting aid is in use To set the CPA TCPA alarm ranges 1 Press the MENU key 2 Press the 7 key twice to display the PLOT menu PLOT MENU 1 1 MARK DISP OFF ON 2 ERASE 3 VEC REF REL TRUE 4 VEC TIME 305 1M 3M 6M 15M 30M 5 CPA SET OFF 0 5NM 1NM 1 5NM 2NM 4NM 6NM 6 TCPA SET 30S 1M 2M 4M 5M 6M 12M 15M 7 TRACK OFF ON 8 AUDIO ALARM OFF ON 9 INTVAL 308 1M 2M 3M 0 4 Requires ATA Board ARP 17 Figure 1 27 PLOT menu 3 Press the 5 key for CPA SET or 6 key for TCPA set 4 Press the 5 key or 6 key again to se lect CPA or TCPA range desired 5 Press the ENTER SELECT key to reg ister your selection 6 Press the MENU key to close the menu Silencing CPA TCPA audible alarm Press the AUDIO OFF key to acknowledge and silence the CPA TCPA aural alarm The flashing of the triangle plot symbol and vector remain on the screen until the dan gerous situation is gone or you intentionally terminate tracking of the target by using the trackball Lost target alarm When the system detects a lost target track ing on the target is discontinued and the tar get symbol becomes a flashing diamond The normal plotting symbol is restored to the tar get when the target is manually acquired If not reacquired the flashing diamond is auto matically erased To confirm a lost tar
50. ass fails start the plotting exercise again Plotting a target 1 Place the cursor on a target of interest by operating the trackball 2 Press the ACQ key Aplot symbol circle and target number 0 9 appears on the target 3 Watching the EPA time shown at the right side of the screen wait for at least 30 seconds Place the cursor on the plot symbol with number and then press the ENTER SELECT key The symbol shape changes from circle to square and the target number in the data display flashes 4 While the target number is flashing place the cursor on the target and press the ACQ key The plot symbol moves to the new target position and the previous po sition is marked by a small dot 5 To acquire other targets repeat the above steps selecting different plot symbols 6 If the target echo separates from its plot symbol repeat steps 3 an 4 Note If a target once plotted is not plotted again within 10 minutes the warning UP DATE PLOT and Plot No will appear on the upper right margin of the screen and the plot symbol of the target flashes If you want to continue plotting this target reacquire it within five minutes Otherwise the target will be re garded as a lost target and its plot symbol and target data will be erased The larger the plotting interval the less accurate the plot ted target data Plotting of each target should normally be made every 3 or 6 minutes as far as possible Y
51. ce and 5 1 31 1 40 Video Contrast The video contrast is adjustable in three lev els according to the radar video sampling level Select the level so that the video con trast feature changes the dynamic range of the video signal to improve picture contrast Picture shows up most clearly from the back ground 1 Press the MENU key 2 Press the 5 key twice to display the ECHO SIG menu ECHO SIG 1 TET COLOR GRN COLOR 2 ECHO AVG OFF 0 5 1 2 3 3 INT REJ OFF 1 2 3 4 NREJ OFF ON 5 ENHANCE OFF 6 2ND ECHO OFF ON 7 CONTRAST 1 23 8 SWEEP JON LINK ON FIX 9 SWEEP LVL 1 23 0 CNTR ON Figure 1 51 ECHO SIG menu 3 Press the 7 key to select desired con trast level from the CONTRAST field 4 Press the ENTER SELECT key to reg ister you selection and the MENU key to finish 1 41 Clutter Sweep The clutter sweep feature suppresses sea and rain clutters within the trackball selected area to discriminate specific targets from noise The user may select the area to pro cess and the level of suppression to apply as follows 1 Press the MENU key 2 Press the 5 key twice to select the ECHO SIG menu 1 32 3 Press the 8 key to turn on off the clutter sweep function and then press the EN TER SELECT key OFF Turns off clutter sweep feature ON LINK Swe
52. ces the SART signals 1 Detune the radar Press the MENU key followed by the 0 key twice to display the OTHER menu OTHER HDG SET SPD MODE MAN SPD DRIFT SET DISPLAY MARK LINE TUNE NAV DATA EBL VRM L LOG NAV ANA AAR WD Figure 2 7 OTHER menu 2 4 2 Press the 0 key twice 3 Press the 5 key twice select DISPLAY DISPLAY 7 NAV DATA OFF ON DISPLAY MAIN SUB SART OFF ON PONS Figure 2 8 DISPLAY menu 4 Press the 4 key several times to select OFF or ON from the SART field as ap propriate 5 Press the ENTER SELECT key followed by the MENU key When the SART function is turned on the range is set to 12 nm the noise rejector echo averaging AUTO A C and interference rejec tor are turned off and SART is displayed at the upper left hand corner of the screen General remarks on receiving SART SART range errors When responses from only the 12 low fre quency sweeps are visible when the SART is at a range greater than about 1 nm the position at which the first dot is displayed may be as much as 0 64 nm beyond the true po sition 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 associat
53. ch can cause fire or electrical shock Danger Warning Labels in Display Unit This radar system contains the danger warning labels shown below Do not remove the labels If a label is peeling off or is illeg ible contact a FURUNO agent for replace ment To avoid electrical shock do not remove cover No user serviceable parts inside 9 F ERVVYUROALAN 17 86572 BS lt S HV 5 amp bocfslik cs Name Warning Label Type 86 003 101 1 Code No 100 236 230 DANGER Electrical shock hazard Do not touch parts inside this cover ER REDON Danger Label Type 14 055 4202 Code No 100 245 220 DANGER Electrical shock hazard Turn off power before servicing 9 9 EAt amp fBi ZOFFICUTF SL Name Danger Label Type 66 022 2012 Code No 100 237 730 DANGER Electrical shock hazard Do not touch anode cap or its cable BBOBNSV 7 7 2 7 2 CR EU Name Danger Label Type 14 055 4201 Code No 100 243 450 TABLE OF CONTENTS INTRO DUG TIO Em V SYSTEM CONFIGURATION 1 cernere eene nnne nnne vil MENU THEE eee itio ni ccce cntsenevatezncctensesaerassieusesteaseents viii OPERATIONAL OVERVIEW DWOE ERE Robo Roe rhe Ene Ee Sven 1 1
54. dar endorsement This is what the U S Codes of Federal Regulations part 80 169 implies not exact extract As such every administration sets forth its own rule service personnel must be aware of this kind of competency requirements Service call When making a service call to your service agent check S N and symptom beforehand 3 4 Table 3 6 Advanced level troubleshooting Problem Check point and probable cause Remedy Adjust GAIN control with A C 1 SEA control set at minimum 2 Marks and legends appear but no noise or echo Marks legends and noise appear but no echo Transmission leak representing own ship position is absent IF amplifier Signal cable between antenna and display Video Amplifier Board Magnetron Modulator Board SPU Board 1 Replace IF amplifier 2 Check continuity and isolation of coaxial cable Note Disconnect the plug and lugs at both ends of coaxial cable before checking it by ohmmeter 3 Check video coax line for secure connection If connection is good replace SPU Board Check magnetron current Replace Modulator Board Replace SPU Board Picture not updated k Bearing Signal Generator Board scanner unit SPU Board Video lockup 1 Check the connection of signal cable 2 Replace SPU Board 3 Turn off and on radar Incorrect orientation of picture SPU Board Gyro Interface
55. dout on the radar menu display 5 Press the ENTER SELECT key 6 Press the MENU key to close the menu 1 9 On screen Legends and Markers Heading Requires heading sensor Heading line 2nd trace echo Range ring interval rejector Range to cursor E Range to cursor 8 2nd Echo 234 5 4 m ad 12 8 Bearing to cursor 10378 HU Presentation mode Pulselength Offcenter COA Function Target alarm zone No 1 No 1 EBL No 2 EBL Range rings Interference rejector Echo stretch IR2 ES1 160 GAIN A C SEA A C RAIN BRILL poo ped 4 AA Log speed Requires log device Tuning bar GAIN setting 1 SEA setting V A C RAIN setting BRILL setting Cursor Waypoint marker Target alarm zone No 2 No 1 VRM No 2 VRM North marker Guard zone active one Noise rejector AC AUTO 190 180 170 6217522 is circumscribed Auto clutter EAV1 _ OS 40 36 N 40 21 211 N OUT IN 4 Guard zone mode reduction VIDEO LL 135 18 23 E 127 21 321 REL TRAIL Target trail reference E averaging en _ WP anc 2 305 AE a Target trail time ideo contrast i EER TTG 0020 2093 elapsed
56. e 1 8 Range scale preset 1 34 RINGS key 1 14 5 SART Search and Rescue Transponder 2 3 Second trace echoes 1 30 Shadow sector 2 3 SHIFT key 1 17 Index 1 Sidelobe echoes 2 2 Speed input 1 9 STBY TX key 1 1 Stern marker 1 27 System configuration vi Target alarm acknowledging alarm 1 17 deactivating 1 17 inward outward alarms 1 17 setting 1 16 Target position output 1 33 Target trails afterglow 1 25 displaying erasing target trails 1 24 restoring trails 1 24 target gradation 1 24 thin trails 1 25 trail brilliance 1 25 trail time 1 24 true relative trails 1 23 Time alarm 1 31 Troubleshooting advanced 3 4 simple 3 3 Tuning 1 3 U User keys F1 F2 F3 1 28 V Video contrast 1 33 Virtual image 2 3 VRM OFF key 1 14 VRM ON key 1 14 Z Zoom 1 27 ZOOM key 1 27 Index 2 FURUNO ELECTRIC CO LTD UJ UJ x Co 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Tel 81 798 65 2111 Fax 81 798 65 4200 Declaration of Conformity FURUNO ELECTRIC CO LTD Manufacturer 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Address declare under our sole responsibility that the product Radar for seagoing ships Model FR 1760DS together with optional ARPA board ARP 17 and Video plotter board RP 17 for navigation Serial No 3371 0006 Model name serial number is in conformity with the essential requirements as described in the Directive 1999 5 EC of the Euro
57. e None Message AZI SIGNAL Electronic Position Finding System The indication also appears when the GPS mode is switched between GPS and DPGS Incorrect Double beep tone None Correct keystroke is responded keystroke by a single beep provided that KEY BEEP ON is selected at installation Log failure 2 beeps LOG xx x and SLOG If the log has failed use the SIGNAL MISSING appear Manual Speed mode or other if no log signal is input for appropriate sensor 30 sec while own ship speed has been less than 0 5 kt EPFS failure Continuous EPFS in red EPFS To silence the beep press the AUDIO OFF key indication appears in the second data cell when the presentation mode is RM goes off in the North up TM SOG indication None SOG in red appears at The radar does not the top right corner when automatically reset itself to SOG option is selected receive an SOG data even if the menu but the associated the SDME regains a bottom SDME fails to detect a tracking speed To erase SOG bottom tracking speed and indication red press MENU changes to the Speed 0 select S WT MENU through the water S WT mode automatically TRUE VECTOR None TRUE VECTOR red 1 35 Table 1 6 Alarms con t Fault Audible alarm Visual alarm To quit alarm status Video signal Continuous VIDEO SIGNAL MISSING To silence the beep press the failure appear
58. e range is changed to a next larger or smaller range scale Note however that when the range is changed only those target trails within the previous range are continued no trails are generated for targets outside of the previous range No trail generated for target not within previous range b New range a Previous range Figure 1 34 How trail copy works 1 Press the MENU key 2 Press the 2 key twice to select TGT TRAIL 1 23 3 Press the 5 key to select ON or OFF from the TRAIL COPY field as appropriate 4 Press the ENTER SELECT key and MENU key in order Resetting target trails To reset or clear the target trail memory hold the TGT TRAIL key depressed for about 3 seconds Target trails are cleared and the trailing process restarts from time count zero at current target trail plot interval Note that target trails are also restarted when the shift feature is turned on or the range is changed Trail brilliance The brilliance of target trails can be adjusted on the BRILL menu as follows 1 Press the MENU key 2 Press the 9 key twice to display the BRILL menu BRILL TRAIL CHARACTER HDG LINE EBL VRM CURSOR MARK PLOT OS SYMB 9 Requires RP 17 Board Figure 1 35 BRILL menu a 3 Press the 1 key twice to select TRAIL 4 Operate the VRM rotary control to adjust brilliance C
59. e signals received The proper setting is such that the back ground noise is just visible on the screen If you set up for too little sensitivity weak ech oes may be missed On the other hand ex cessive sensitivity yields too much background noise strong targets may be missed because of the poor contrast between desired echoes and the background noise on the display To adjust receiver sensitivity transmit on long range and adjust the GAIN control so back ground noise is just visible on the screen The current gain setting is shown by the GAIN bar at the top right hand corner of the screen 1 15 Suppressing Sea Clutter Echoes from waves cover the central part of the display with random signals known as sea clutter The higher the waves and the higher the scanner above the water the further the clutter will extend When sea clutter masks the picture suppress it by the A C SEA con trol rotate for manual adjustment push for automatic adjustment Manual adjustment by the A C SEA control The A C SEA control reduces the amplifica tion of echoes at short ranges where clutter is the greatest and progressively increases amplification as the range increases so am plification will be normal at those ranges where there is no sea clutter The proper setting of the A C SEA control should be such that the clutter is broken up into small dots and small targets become distinguishable 1 12 If the control is set t
60. echo stretch and F3 clutter sweep Presetting the user keys 1 Press the MENU key 2 Press the 6 key twice to display the FUNC menu FUNC FUNC1 FUNC2 Fe F 2 F 8 6 A DCURVEAJ B C D a Figure 1 39 FUNC menu 3 Press 3 4 or 5 key twice depending on which user key you want to set For example press the 4 key to program the F2 key Fe2 MENU 1 TRAIL TIME 26 HUTB MODE 2 TRAIL MODE 27 TUNE A M 3 TRAIL SHADE 28 EXT WP 4 TRAIL LEVEL 29 OS POSN 5 ALARM AREA 30 CURS BRG 6 ALARM MODE 31 1 7 PANEL DIMMER 32 EBL2 T R 8 COLOR 33 RNG 9 ECHO AVG 34 VRM1 RNG 10 INT REJ 35 VRM2 RNG 11 ECHO STRETCH 36 SWEEP 12 NOISE REJ 37 MARK MENU 13 ECHO ENHANCE 38 DISP MODE 14 2ND ECHO 39 A D CURVE 15 CONTRAST 40 ORIGIN MARK 16 PLOT MENU 41 DEST ON CSR 17 MARK MODE 18 BRILL MENU 19 DRIFT MENU 20 NAV DATA 21 DISPLAY 22 SART 23 TIME ALARM 24 STERN MARK 25 OS MARK Select by VRM knob and hit ENTER key 37 and 38 shown with connection of RP 17 Figure 1 40 Function menu 4 Select desired function with the VRM ro tary control 5 Press the ENTER SELECT key to reg ister your selection and then press the MENU key to finish Activating a user defined key Press a user key Press the key again to se lect option desired 1 32 Function Keys The functio
61. eck Speed Log Course Trigger 03591511 OK OK 24rpm 3000Hz 000 OK OK OK OK OK 18590411 18590421 OK OK OK OK 0 0 KT OK OK ROM Test RAM Test Program No Video Signal Bearing Pulse Heading Pulse 10 Minimum Hit 11 Scan Time 12 Manual Acq 13 Auto Acq 14 FE Data 1 15 FE Data 2 Press MENU key to escape Press ENTER key to check CRT Control Check Bar length increases with clockwise rotation decreases with counterclockwise rotation Press MENU key to return to radar picture Press ENTER SELECT key to go picture check facility EBL Control Confirmation Test Figure increments upward pattern with clockwise rotation downward with counterclockwise rotation Trackball Confirmation Figure increments upward with up right rotation downward with down left rotation L VRM Control Confirmation Figure increments upward with clockwise rotation downward with counterclockwise rotation Figure 3 2 Test results screen Select item with tenkey and adjust by VRM knob 4 V SIZE 5 V POSITION 6 PINCUSHION 7 BRIGHTNESS Figure 3 3 Display circuit test 3 9 PARTS LOCATION Cooling Fan 0615 24M ATA Board ARP 17 option 18P9004A 44 DANGER Electrical shock hazard Do not touch anode cap or its cable Figure 4 1 Display unit
62. ed by the MENU key to close the menu 1 34 Adjusting Brilliance of Screen Data You can adjust relative brilliance levels of various marks and alphanumeric readouts displayed on the screen as follows 1 Press the MENU key 2 Press the 9 key twice to show the BRILL menu BRILL TGT TRAIL CHARACTER HDG LINE EBL VRM CURSOR MARK PLOT OS SYMB 1 Requires RP 17 Board Figure 1 44 BRILL menu OMONAARwWD 3 Press appropriate numeric key twice to select item to adjust For example press the 1 key if you want to change the bril liance of target trails 4 Operate the VRM rotary control to adjust brilliance Current brilliance level is dis played on the selected item s bar graph The adjustment range is as follows 1 ECHO TRAIL 10 50 2 CHARACTER 3 HDG LINE 50 100 4 EBL VRM 5 CURSOR 6 MARK 7 PLOT 8 OS SYMB 0 100 5 Press the ENTER SELECT key to con clude your selection followed by the MENU key to close the menu 1 29 1 35 Noise Rejector The noise rejector suppresses white noise which appears on the screen as many dots scattered randomly over the display To suppress white noise 1 Press the MENU key 2 Press the 5 key twice to show the ECHO SIG menu CONTRAST 1123 CLTR SWEEP OF ON LINK ON FIX SWEEP LVL 1 2 3 CNTR ENHANCE
63. ed pulselength Narrow bandwidths of 3 5 MHz are used with long pulses on long range and wide band widths 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 side lobes from the radar scanner 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 side lobes as they may be easier to detect in clut ter conditions and also they will confirm that the SART is near to the ship Gain For maximum range SART detection the nor mal 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 con trol should be set to the minimum Care should be exercised as wanted target in sea clutter may be obscured Note also that in clutter conditions the first few dots of the SART response may not be detectable irre spective 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 clut ter sea control facilities in which case the op erator should switch to
64. enu No 1 EBL No 1 VRM EBL VRM 80 0 R 0 50NM Bearing from target A Range between to target B target A and target B Figure 1 18 Measuring range and bearing between two targets 1 22 Setting a Target Alarm Zone A CAUTION The target alarm feature should never be relied upon as the sole means for detecting the risk of potential collision The operator of a ship is not relieved of the responsibility to keep lookout for avoiding collisions whether or not the radar is in use The target alarm serves to alert the naviga tor to targets ships landmasses etc en tering a certain area with visual and audible alarms 1 16 Note The target alarm is given to targets having a certain level of echo strength This level does not always imply a landmass reef ships or other surface objects but can mean returns from the sea surface or precipitation Properly adjust the GAIN A C SEA and A C RAIN controls to reduce noise to avoid gen eration of the guard alarm against false tar gets The zone has a fixed width of 0 5 nm in the radial direction depth and is adjustable only within 3 0 to 6 0 nm from own ship The outer and inner boundaries can be set at any dis tance The sector of the zone can be set any where between 0 and 360 degrees in any direction To set target alarm zones 1 Press the MENU key 2 Press the 3 key twice to show the TGT ALARM menu TGT ALA
65. ep area moves with trackball operation Sweep cursor shown by dashed lines Sweep area is fixed on the screen Sweep cursor shown by solid lines 4 Press the 9 key SWEEP LVL several times to select level of suppression to use 3 provides the highest level of noise sup pression 5 Press the ENTER SELECT key to reg ister your selection and the MENU key to finish ON FIX 6 Operate the trackball to select area to pro cess lt om Select area to process with square cursor Figure 1 52 Selection of area to process with clutter sweep The clutter sweep feature may also be acti vated by a user key 1 42 Outputting Target Position Target position can be output in IEC 61162 1 format to a video plotter and marked on its screen with a symbol Select target with the trackball and push the A C RAIN control TLL This function requires position data and compass signal 1 43 Background Color The secondary function of the BRILL control BKGND COLOR is to select the color of the background characters menu markers and indications from the five color combinations shown in the table below Each press of the control selects one of the five color combina tions Table 1 4 Available color combinations Arrangement 1 2 3 4 5 Radar Display BLK BLU BLU BLU BLK Outside Radar BLK BLK BLK BLU BLK Display Area Characters GRN
66. er of the screen Each VRM remains at the same geo graphical distance when you operate the RANGE key This means that the appar ent radius of the VRM ring changes in proportion to the selected range scale 3 Press the VRM OFF key to erase each VRM 1 14 Ring interval 0 55 15 0 R Cursor No 1 VRM dotted No 2 VRM dashed Range and bearing to cursor VRM Active marker is 0 375NM circumscribed Range to Range to No 2 VRM Figure 1 15 How to measure range by VRM 1 19 Measuring Bearing Use the Electronic Bearing Lines EBLs to find bearing of a target There are two EBLs No 1 and No 2 which are toggled by suc cessive presses of the EBL ON key Each EBL is a straight dashed line extending out from the own ship position up to the circum ference 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 be tween No 1 No 2 and index lines if dis played and the currently active EBL readout is circumscribed 2 Rotate the EBL rotary control clockwise or counterclockwise until the active EBL bisects the target of interest and read its bearing at the lower left corner of the screen 3 Press the EBL OFF key to erase each EBL The EBL readout is affixed by relative if itis relative t
67. er your selection followed by the MENU key to close the menu Table 1 3 Default function key settings 1 28 Default Function Key Settings Label 3 ECHO 4 INT 5 STRETCH 6 7 ENHANCE 8 CON 9 A C AVG REJ TRAST A UTO COAST 1 1 OFF OFF OFF 2 OFF OCEAN 1 1 OFF OFF OFF 2 OFF R SEA 2 1 OFF OFF OFF 2 ON RAIN 0 5 1 OFF OFF OFF 2 OFF BIRD N 2 1 OFF ON OFF 2 OFF BIRD F 3 1 2 ON OFF 3 OFF 1 33 Suppressing Second trace Echoes In certain situations echoes from very dis tant 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 next radar pulse has been transmitted To activate or deactivate the second trace echo rejector 1 Press the MENU key followed by the 5 key twice to display the ECHO SIG menu ECHO SIG TGT COLOR COLOR ECHO AVG OFF 0 5 1 2 3 INT REJ OFF 1 2 3 N REJ OFF ON ENHANCE OFF 2ND ECHO OFF CONTRAST 123 SWEEP ON FIX SWEEPLVL 1 2 3 CNTR OFF ON AN OAR Figure 1 43 ECHO SIG menu 2 Press the 6 key to select OFF or ON from the 2ND ECHO field as appropriate 3 Press the ENTER SELECT key to con clude your selection follow
68. get place the cursor on it and press the CAN CEL CLEAR key 1 21 Past plot points Past plot points may be marked on the dis play with as many as nine dots You can turn this display on off as follows 1 Press the MENU key 2 Press the 7 key twice to select PLOT PLOT MENU 1 1 MARK DISP OFF 2 ERASE 3 VEC REF REL TRUE 4 VEC TIME 30 1M 3M 6M 15M 30M 5 CPA SET OFF 0 5NM 1NM 1 5NM 2NM 4NM 6 6 TCPA SET 30S 1M 2M 4M 5M 6M 12M 15M 7 TRACK OFF ON 8 AUDIO ALARM ON 9 INTVAL 30S 1M 2M 3M 6M 0 Requires Board ARP 17 Figure 1 28 PLOT menu 3 Press the 7 key to select OFF or ON from the TRACK field as appropriate 4 Press the ENTER SELECT key to reg ister your selection followed by the MENU key to close the menu 1 26 Target Trails Echo Trails It is possible to display the trails of the radar echoes of targets in the form of synthetic af terglow Target trails are selected either rela tive or true and may be sea or ground stabilized The simulated afterglow can be se lected in a single tone or gradual shading de pending on a setting on the TRAIL menu Note that afterglow is shown in light yellow when the echo color is green True or relative trails You may display target trails relative to north or own ship heading in Relative Motion True motion tr
69. heading line north marker stern marker own ship symbol To temporarily extinguish the heading line north marker stern marker and own ship sym bol to look at a target which may be obscured by those markers press the GAIN control HL OFF control The heading line north marker stern marker and own ship symbol reappear when the control is released Note that the RP screen is also temporarily erased when the RP 17 is connected 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 accor dance with the compass signal Stern marker The stern marker a dot and dash line ap pears opposite to the heading line It can be displayed erased on the item MARK LINE in the OTHER menu Own ship symbol The own ship symbol appears at own ship position It can be displayed erased on the item MARK LINE in the OTHER menu The symbol is scaled to indicate length and beam of the vessel If the largest dimension of the symbol gets smaller than 6 nm the symbol will disappear and own ship will be repre sented by a small dot or circle The size of the symbol is set at installation 1 31 User Keys F1 F2 F3 The user keys F1 F2 and F3 may be pro grammed by the operator to display a desired menu For example you can program the F2 key to select target trail time whenever the key is pressed The default settings are F1 echo averag ing F2
70. her threat ening targets With Trackball Place the cursor ona target which you do not want to be tracked any longer by operating the trackball and press the CANCEL CLEAR key All Targets To terminate plotting of all tar gets at once 1 Press the MENU key followed by the 7 key twice 2 Press the 2 key twice to select OFF from the ERASE field 3 Press the ENTER SELECT key followed by the MENU key Setting CPA TCPA alarm ranges When the predicted CPA of any target be comes smaller than a preset CPA alarm range and its predicted TCPA less than a preset TCPA alarm limit the EPA releases an au dible alarm and displays the warning label COLLISION appears on the screen In addi tion 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 adjusted CPA TCPA alarm ranges must be set up prop erly taking into consideration the size ton nage speed turning performance and other characteristics of own ship A CAUTION CPA TCPA Alarm The CPA TCPA alarm feature should never be relied upon as the sole means for detect ing the risk of collision The navigator is not relieved of the respon sibillity to keep visual lookout for avoiding collisions whether or not the rad
71. ideo function It enlarges target echoes in bearing and range direction on 1 5 6 nm scales 1 Press the MENU key followed by the 5 key twice to show the ECHO SIG menu SWEEP LVL 1 2 3 CNTR ENHANCE OFF ECHO SIG 1 TGT COLOR GRN COLOR 2 ECHO AVG OFF 0 5 1 2 3 3 INT REJ OFF 1 2 3 4 REJ OFF ON 5 ENHANCE OFF ON 6 2ND ECHO OFF ON 7 CONTRAST 123 8 CLTR SWEEP DFF JON LINK ON FIX 9 0 Figure 1 47 ECHO SIG menu Press the 5 key to select OFF or ON from the ENHANCE field Press the ENTER SELECT key and then press the MENU key Echo enlarged in bearing and range directions Figure 1 48 How the enhance function works Note Enhanced video can also be selected with a user key 1 38 Degaussing Interval The screen is degaussed automatically at certain time intervals as well as each time the radar is turned on to demagnetize the CRT screen to eliminate color contamination caused by earth s magnetism or magnetized ship structure You can select the degauss ing interval and the degaussing degree as follows 1 Press the MENU key followed by the 0 key twice to select OTHER 2 Press the 0 key twice to select the OTHER menu OTHER 4 TEST DEGAUSS TIME ALARM RANGE INSTALL DNAN Figure 1 49 OTHER menu 3 Press the 3 key twice to display the DE GAUSS menu
72. imple Troubleshooting This paragraph describes how to cure opera tional problems which can be made by ob serving the radar picture and using operator controls and keys without opening the display unit antenna unit or other equipment units The table below shows user level troubleshooting procedures Table 3 5 Easy troubleshooting Problem Remedy No own Check that SHIP S MARK ON is ship marker selected at the MARK LINE menu keying sequence MENU 0 0 6 6 Also own ship information length width etc should have been entered in initial settings Consult a FURUNO representative or dealer for details No picture Turn the BRILL control clockwise Color Push the EBL rotary control to appears degauss the screen abnormal No nav data Turn on navigation device 3 3 3 6 Advanced level Troubleshooting This paragraph describes how to cure hardware and software troubles which should be car ried out by qualified service personnel Note This radar equipment contains complex modules in which fault diagnosis and repair down to component level are not practicable by users Serviceman qualification All adjustments of radio transmitter during or coinciding with the installation servicing or maintenance which may affect the proper operation must be performed by or under the imme diate supervision and responsibility of a person holding an operator certificate containing a ship ra
73. imum range is equal to the radar hori zon or a little shorter The radar horizon is longer than the optical one by about 6 be cause 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 scanner height m h2 target height m Radar horizon Optical horizon Figure 2 1 Radar horizon For example if the height of the scanner above the waterline is 9 meters and the height of the target is 16 meters the maximum ra dar range is Rmax 2 2 x W9 116 2 2 3 4 15 4 nm It should be noted that the detection range is reduced by precipitation which absorbs the radar signal 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 precipita tion condition an S band radar would have better detection than an X band radar 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 scanner length and reciprocally pro portional to the wavelength The length of the scanner radiator should be chosen for a bear ing resolution better than 2 5 IMO Resolu
74. itter tube is warmed for transmission When the timer has reached 0 00 the indication STBY ap pears indicating that the radar is now ready to transmit pulses POWER switch 0000000000000 Figure 1 1 Location of power switch A DANGER Before turning on the radar make sure that there is no one near the antenna Serious injury or even death may result if a rotating antenna strikes someone standing nearby 1 2 Transmitter ON After the power has been turned on and the magnetron has warmed STBY Standby ap pears at the screen center indicating the ra dar is ready to transmit radar pulses Press the STBY TX key to transmit When you won t be using the radar for extended period but you want to keep itin a state of readiness place it in standby by pressing the STBY TX key The display shows STBY when the radar is in standby Video Lockup Recover Video freeze up or lock up can occur unex pectedly on digital rasterscan radars This is mainly caused by heavy spike noise in the power line and can be noticed by carefully watching the nearly invisible 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 picture
75. l read Relative values Presentation mode Description representative display Heading Heading Head up Mode marker line a A display without azimuth stabilization in which the line connecting the center with the top of the SN 050 300 8 2 il ny co 9 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 compass north A failure of the compass input will cause the north marker to disappear and the HDG readout to show asterisks 270 260 3 gt 250 2 E gt 4 120 4 SS 130 NS 220 tmp 20 200 impu 150 190 180 170 160 Heading marker Heading line 020 y030 040 S S SS S S a 8 E M WM My 8 sS SS 160 Ny 170 230 Pimnw 180 2 10 200 The bearing scale rotates with a compass signal Head up TB True Bearing Mode 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 compass stabilized that is it ro
76. manual 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 clut ter rain control facilities in which case the op erator 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 ra dar in which case it is superimposed on the ship s radar display automatically The racon signal appears 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 the beacon Racon Figure 2 9 Appearance of RACON signal on the radar display 2 5 MAINTENANCE TROUBLESHOOTING A WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment Only qualified personnel should work inside the equipment Turn off the radar power switch before servicing the scanner unit Post a warn ing sign near the switch i
77. n but lot of red Fine noise Noise in red Long range detection Buoy detection Longer range detection than C 1 34 1 47 Enlarging Close in Targets The center enhance feature enlarges all ech oes within the first range on any range 1 Press the MENU key 2 Press the 5 key twice to display the ECHO SIG menu 3 Press the 0 key to turn CNTR ENHANCE on or off 4 Press the ENTER SELECT key followed by the MENU key 1 48 Alarms The table below shows the alarm indications which appear on the display screen Table 1 6 Alarms MISSING appears No radar echoes Fault Audible alarm Visual alarm To quit alarm status Heading failure beeps Heading label reads Match the on screen HDG xxx x and the message readout with the actual GYRO SIGNAL MISSING compass reading if necessary appears in red To stop audible alarm press Display is automatically the AUDIO OFF key switched to Head up mode within 1 min Target alarm Beeps Target flashes Press TGT ALARM key Section 1 22 Watch alarm Beeps WATCH 0 00 Press the AUDIO OFF key Label WATCH turns The label WATCH turns to red and time count freezes normal video and the timer is at 0 00 reset Section 1 36 Own ship lat lon None in own ship position Make sure that own ship Cursor lat lon field position data is fed from XXx X in cursor position external radionav equipment field System failur
78. n keys work similar to the auto matic dialing feature on a telephone playing back control settings just as they were regis tered Instead of manually adjusting controls to set up for a particular condition for ex ample navigation in a harbor you can have a function key do it for you Each function key can be assigned a combi nation of particular radar settings that will be most suited to a specPic navigation purpose and an adhesive backed label such as OCEAN COAST is usually attached to the keytop for easy identification of the assigned purpose Presetting the function keys The radar s internal computer offers several navigation setups as outlined in the table on the next page For instance you might want to select RAIN as the objective of a function key Then when you press that function key the radar will be instantly set up to operate under heavy rain conditions Each setup option defines a combination of several radar settings for achieving optimum setup for a particular navigating situation Those involved are interference rejector echo stretch echo average automatic anti clutter noise rejector video contrast and enhanced video 1 27 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 dis play the relevant function key menu and se lect appropriate menu options Table 1 2
79. ndicating it should not be turned on while the scanner unit is being serviced Prevent the potential risk of being struck by the rotating scanner and exposure to RF radiation hazard Wear a safety belt and hard hat when working on the scanner unit Serious injury or death can result if someone falls from the radar scanner mast 3 1 Periodic Maintenance Schedule Periodic checks and maintenance are important for proper operation of any electronic sys tems This chapter contains maintenance instructions to be followed to obtain optimum per formance and the longest possible life of the equipment Table 3 1 Maintenance schedule Interval Check point Check and measures Remarks Weekly Display unit Periodically clean the exterior of screen produces static charge display unit with a dry soft cloth which attracts dust DO NOT use Use of commercially available strong solvents like paint thinner or CRT cleaner spray having abrasive cleaners for cleaning antistatic effect is recommended Dust and dirt on CRT creates symptoms similar to poor sensitivity Continued on next page 3 1 Table 3 1 Maintenance schedule con t Interval Check point Check and measures Remarks 3 to 6 Exposed nuts Check for corroded or loosened Sealing compound may be used months and bolts nuts and bolts If necessary clean instead of paint Apply a small for quali scanner u
80. nit and repaint them thickly Replace amount of grease between nuts and fied tech them if heavily corroded bolts for easy removal in future ony Scanner Check for dirt and cracks on Do not use plastic solvent acetone radiator radiator surface Thick dirt should for cleaning If you need to remove be wiped off with soft cloth ice from scanner unit use a wooden dampened with fresh water if a hammer or plastic head hammer crack is found apply a slight Crack on the unit may cause water amount of sealing compound or ingress causing serious damages to adhesive as a temporary remedy internal circuits then call for repair Terminal Open scanner cover to check When closing scanner covers in strips and terminal strip and plug position be careful not to catch loose plugs in connections inside Also check wires between covers and unit scanner unit the rubber gasket of antenna covers for deterioration 6 months CRT and High voltage at CRT and If CRT anode rubber cap or wire to one surrounding surrounding components attract sheath is cracked replace it year components dust in environment which will For service technician Wait at for quali cause poor insulation Ask a least 3 minutes until high voltage fied tech FURUNO representative or dealer components CRT and HV nicians to clean internal high voltage capacitors discharge their residual only components charges before accessing them Terminal Check for loose connections strips
81. o own ship s heading or T true if it is referenced to the North as determined by the item EBL VRM on the OTHER menu No 1 VRM Range and bearing to cursor Cursor 0 55 NM 15 0 R J No 2 EBL dashed EBL Bearing to gt 45 5 No 1 EBL jae No 1 EBL Bearing to dotted No 2 EBL Active marker is circumscribed Figure 1 16 How to measure bearing by EBL 1 20 Collision Assessment by the Offset EBL The origin of the EBL can be placed any where with the trackball to enable measure ment of range and bearing between any targets This function is also useful for as sessment of the potential risk of collision To assess possibility of collision 16 Press the EBL ON key to display or ac tivate EBL No 1 Place the cursor on a target of inter est Ain the illustrated example by oper ating the trackball Press the EBL OFFSET key and the origin of the active EBL shifts to the cur sor position Press the EBL OFFSET key again to anchor the EBL origin After waiting for a few minutes at least 3 minutes operate the EBL rotary control until the EBL bisects the target at the new position A The EBL readout shows the target ship s course which may be true or relative depending on the settings on the OTHER menu Cursor No 1 EBL If relative motion is selected it is also possible to read CPA Closest Point of Approach by using a VRM as shown
82. oo low targets will be hidden in the clutter while if it is set too high both sea clutter and targets will disappear from the display In most cases adjust the control until clutter has disappeared to lee ward but a little is still visible windward 1 Confirm that the sensitivity is properly adjusted and then transmit on short range 2 Adjust the A C SEA control so small tar gets are distinguishable but some clutter remains on the display A C SEA control A C SEA control off adjusted Figure 1 11 How to adjust the A C SEA control Automatic adjustment by the A C AUTO control The A C AUTO control automatically sup presses sea clutter as well as rain clutter Push the A C SEA control to turn on the au tomatic A C circuit A C AUTO appears at the bottom left corner when the A C AUTO cir cuit is on Fine adjustment of the circuit can be done with the A C RAIN and A C SEA con trols A CAUTION Turn off the A C AUTO feature when its use is not required it can erase weak target echoes 1 16 Suppressing Precipitation Clutter The vertical beamwidth of the scanner is de signed to see surface targets even when the ship is rolling However by this design the unit will also detect rain clutter rain snow or hail in the same manner as normal tar gets Figure 1 12 shows the appearance of rain clutter on the display The A C RAIN control adjusts the receiver sensitivity as the A C SEA control does but rathe
83. or with diode limiter 8 Noise figure FR 1710 1725 6 dB FR 1760DS 4dB 3 RADAR DISPLAY 1 Picture tube 17 color CRT Effective display diameter 225 mm Yellow or green echoes in 16 levels 2 Scanning Raster scan at scanning frequency 48 3 kHz horizontal 60 Hz vertical Number of scanning lines 768 non interlaced 3 Range scales and ring intervals 0 125 025 075 15 3 6 12 24 48 72 96 120 os 1 4 s m i620 NooRms s s s siscjsjeje eje cjo s Maximum Range FR 1710 72 nm FR 1725 96 nm FR 1760DS 120 nm 4 Range discrimination 34 m on 1 5 nm range 5 Bearing discrimination XNI2AF 2 03 XN20AF 1 46 XN24AF 1 18 SN4A 2 83 SN5A 2 53 6 Minimum range 28m SP 2 7 Bearing accuracy 8 Range accuracy 9 Presentation modes 10 Variable Range Markers 11 Electronic Bearing Lines 12 Offcenter 4 POWER SUPPLY 1 DC Source 1710 1725 FR 1760DS 2 AC Source FR 1710 FR 1725 FR 1760DS Display unit H 1 of range in use or 8 m whichever is the greater Head up Head up TB North up Course up True motion north up Gyro signal required except for HU Two Variable Range Markers switchable Two Electronic Bearing Lines switchable Sweep origin can be offcentered by 75 of range in use in any direction Not available for maximum range 24 rpm 24 32 VDC 8 5 6 4 A 42 rpm 24 32 VDC 8 8 6 6 A 24 VDC 5 6 100 115
84. ou can use the Time Alarm to warn yourself every 3 or 6 minutes Within 30 seconds you can cancel a last plot by the CANCEL CLEAR key and make a re entry at a different position After 30 sec onds the last entry is processed to produce a vecior 1 19 True or relative vector vector time Vectors can be displayed relative to own ship s heading Relative or with reference to the North True This feature is available in all presentation modes compass must be working correctly The current vector mode is indicated at the upper right corner of the screen Vector time or the length of vectors can be set to 30 seconds 1 3 6 15 or 30 minutes and the selected vector time is indicated at the upper right corner of the screen 1 Press the MENU key followed by the 7 key twice to select PLOT PLOT MENU 1 1 MARK DISP OFF 2 ERASE 3 VEC REF REL TRUE 4 VEC TIME 305 iM 3M 6M 15M 30M 5 CPA SET OFF 0 5NM 1NM 1 5 2NM 3NM 4NM 5NM 6NM 6 TCPA SET 305 1M 2 4M 5M 6M 12M 15M 7 TRACK ON 8 AUDIO ALARM OFF 9 INTVAL 30S 1M 2M 3M 6 0 4 Requires ATA Board ARP 17 Figure 1 26 PLOT menu 2 Press the 3 key to select REL or TRUE from the VECT REF field as appropriate and then press the ENTER SELECT key 3 Press the 4 to select appropriate vector time from the VEC TIME field and then press the ENTE
85. pean Parliament and of the Council on radio equipment and telecommunications terminal equipment R amp TTE Directive and satisfies all the technical regulations applicable to the product within this Directive EN 60945 1997 01 IEC 60945 Third edition 1996 11 ITU R R App S3 Table 2 Edition 1998 title and or number and date of issue of the standard s or other normative document s For assessment see Statement of Opinion N 00214130 AA 00 of 4 January 2001 issued KTL Certification The Netherlands Test report 98674140 of 18 January 1999 prepared by KTL The Netherlands and FLI 12 98 017 of 26 December 1998 prepared by Furuno Labotech International Co Ltd On behalf of Furuno Electric Co Ltd She CLA S i 0727273 Hiroaki Komatsu Nishinomiya City Japan Manager January 15 2001 International Rules and Regulations Place and date of issue name and signature or equivalent marking of authorized person
86. r in a longer time period longer range Clockwise rotation of this control increases the anti clutter effect A C RAIN control OFF adjusted Figure 1 12 Effect of A C RAIN control A C RAIN control 1 17 Interference Rejector Mutual radar interference may occur in the vicinity of another shipborne radar operating in the same frequency band 9 GHz 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 re duced by activating the interference rejector circuit The interference rejector is a kind of signal correlation circuit It compares the received signals over successive transmissions and suppresses randomly occurring signals There are three levels of interference rejec tion depending on the number of transmis sions that are correlated These are indicated by the legends IR1 IR2 and IR3 at the lower left position of the screen Figure 1 13 Interference To activate the interference rejector 1 Press the MENU key 2 Press the 5 key twice to select ECHO SIG CONTRAST 123 CLTR SWEEP DFF JON LINK ON FIX SWEEPLVL 123 CNTR ENHANCE OFF ON ECHO SIG 1 COLOR GRN COLOR 2 ECHO AVG OFF 05 4 2 3 3 INT REJ OFF 1 2 3 4 N REJ OFF ON 5 ENHANCE OFF O
87. radius of VRM screen BRILL Alternately selects DEGAUSS PUSH W PUSH TLL PUSH A C RAIN AIC AUTO PUSH HL OFF PUSH Manually acquires target plotting function Silences timer No 1 EBL No 2 EBL Erases EBL Activates desired function and EPA Selects range alarms scale N Turns on off Alternately selects Erases VRM No 1 VRM No 2 VRM ROTATE Suppresses menu selected precipitation clutter function Transmit standby PUSH Outputs target position Figure 1 2 Control description switch 1 4 CRT Brilliance Operate the BRILL control on the control panel of the display unit to adjust the entire screen brightness Note that the optimum point of adjustment varies with ambient light ing conditions especially between daytime and nighttime 1 5 Control Panel Backlighting 1 Press the MENU key MENU VIDEO PLOT TGT TRAIL TGT ALARM PANEL DIM ECHO SIG FUNC PLOT MARK BRILL OTHER Figure 1 3 Main menu 2 Press the 4 key twice The following dis play appears DIMMER BRIGHT 7 6 5 4 3 2DIM 1 PANEL Figure 1 4 Screen for adjustment of panel dimmer 3 Press the 1 key to select backlighting level desired 4 Press the ENTER SELECT key to reg ister your selection and the MENU key to close the menu 1
88. rizontal 24 rpm or 42 rpm FR 1760DS 24 rpm only 4 ft XNI2AFP 6 5 ft 20 8 ft XN24AF 8 1 ft SN4A 9 ft SN5A 1 8 12 1 23 20 0 95 XN24AF 2 68 SN4A 1 23 SN5A 3 1 XNI2AP 3 1 XN20AF 2 5 XN24AF 20 24 dB within 40 of main lobe 30 dB outside 410 of main lobe 24 dB within 320 of main lobe 30 dB outside 420 of main lobe 23 dB within 320 of main lobe 25 dB outside 320 of main lobe 20 dB within 320 of main lobe 25 dB outside 320 of main lobe XNI2AF 27 5 dB XN20AF 30 0 dB XN24AF 31 5 dB SNAA 26 0 dB SN5A 26 4 dB 51 5 m s relative FR 1710 1725 9410 MHz 330 MHz FR 1760DS 3050 MHz 230 MHz FR 1710 10 kW FR 1725 25 kW FR 1760DS 60 kW 40 dB or less 60 MHz Logarithmic Short 1 2 Middle 1 pulse 27 MHz Middle 2 3 Long pulse 3 MHz Short pulse 27 MHz Middle 1 2 Long pulse 3 MHz SP 1 6 Range Pulselength PL amp Pulse Repetition Rate PRR FR 1710 1725 Range am 0125 025 05 025 ts 3 12 24 us 2 96 s wo os _ me fso e RE Second echo trace mode PRR 500 Hz Maximum Range FR 1710 72 nm FR 1725 96 nm FR 1760DS Range nm 0 125 025 os oss 1s 3 12 24 as 72 120 450 Hz 120 nm range 7 Duplexer Ferrite circulat
89. s AUDIO OFF key Buzzer sounds again when the range is changed Heading line Continuous beep HL SIGNAL MISSING To silence the beep press the failure appears AUDIO OFF key Buzzer sounds again when the range is changed EPA plotting None UPDATE PLOT informs that Reacquire the flashing target a target which was once within 5 min or disregard the plotted has not been re target if it is not necessary to plotted within 10 minutes track the target Target on collision Beeps COLLISION appears when Take evasive action or course EPA or ATA tracked target terminate tracking of target is on collision course Then visual indication goes off 1 49 Peformance Monitor The performance monitor PM 30 for FR 1710 1725 PM 50 for 1760DS provides an effec tive means of general performance check of a radar installation It works like a transponder Installed in the proximity of the radar antenna it is triggered by part of the transmitted micro wave energy and sends back a coded signal to the antenna for display on the radar screen Overall performance can be checked from the range size and number of arcs displayed on the radar screen For further details see the operator s manual of the performance monitor To turn on the performance monitor 1 Press the MENU key 2 Press the 0 key twice to display the OTHER menu 3 Press the 5 key twice to open the DISPLAY menu
90. t Speed Log ATA Board Water temperature waler depth Gyro Converter 00684 Edena ry Buzzer E Option pel REN Rectifier Ship s Mains 24 32 VDC or 100 110 115 220 230 1 50 60 Hz vii FR 1710 XN12AF RSB0074 062 24 rpm XN20AF RSB0074 062 24 rpm XN12AF RSB0075 062 42 rpm XN20AF RSB0075 062 42 rpm FR 1725 XN20AF RSB0074 063 24 rpm XN24AF RSB0074 063 24 rpm XN20AF RSB0075 063 42 rpm XN24AF RSB0075 063 42 rpm RU 3424 FR 1725 only Note The display unit is available in AC or DC specification MENU TREE MENU key TGT TRAIL 1 TIME 15S 306 1M settings 15M 30M CONT MENU 2 MODE REL TRUE 1 VIDEO PLOT 3 SHADE MONO MULTI 2 TGT TRAIL 4 LEVEL 123 3 ALARM 5 TRAIL COPY OFF ON 4 PANEL DIM 6 THIN TRAIL OFF ON 5 ECHO SIG 7 THIN MODE 11234 6 FUNC 7 PLOT TGT ALARM 8 MARK 1 AREA 2 9 BRILL 2 MODE1 IN OUT 0 OTHER 3 MODE2 IN OUT Requires Video Plotter 17 DIMMER 1 PANEL BRIGHT 7 6 5 4 3 2DIM
91. targets They can be reduced through care ful reduction of the gain or proper adjustment of the A C SEA control 9 Spurious Target B True Figure 2 3 Sidelobe echoes Virtual image A relatively large target close to your ship may be represented at two positions on the screen One of 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 example 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 Shadow sectors Funnels stacks masts or derricks in the path of the scanner block the radar beam If the angle subtended at the scanner 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 3 SART Search and Rescue Transponder A Search and Rescue Transponder SART may be triggered by any X Band 3 cm ra dar within a range of approximately 8 nm Each radar pulse received causes it to trans mit 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 rela tively slow sweep
92. tates in accordance with the 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 compass If the compass fails the bearing scale returns to the state of head up mode 1 6 Presentation mode representative display Description Heading marker Heading North line marker jaan 5 m o Course up Mode 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 top of screen while the heading line moves in accordance with ship s yawing and course changes This mode is useful to avoid smearing of picture during course change After a course change press the SHIFT key to reset the picture orientation if you wish to continue using the course up mode The heading line gets back to perpendicular 57 150 4 SS 50 SS 160 ny 240 a 170 230 nmp 180 220 210 200 North Heading line Heading 350 000 010 marker T SN 320 8 nny S ANY 3 5 N
93. the ENTER SELECT key 5 Press the MENU key Erasing origin marks Erasing individual origin marks Select the origin mark with the cursor and then press the CANCEL CLEAR key Erasing all origin marks 1 Press the MENU key 2 Press the 8 key twice to select MARK 3 Press the 1 key twice 4 Press the MENU key 1 25 1 29 Zoom The zoom function is useful for enlarging an area of interest as large as twice the normal viewing This performs the range scale re duction to a half and the offset at the same time Zoom can be used on ranges other than 0 125 72 96 120 nm 1 Place the cursor close to the point of interest by operating the trackball 2 Press the ZOOM key The area around the cursor and own ship is enlarged twice as large as the original size To cancel zoom press and hold down the ZOOM key about two seconds Note The zoom feature is inoperative when the display is off centered Cursor b Press ZOOM key to zoom in a Cursor placed at point of interest Figure 1 38 Zoom 1 30 Markers Heading line The heading line indicates the ship s head ing in all presentation modes and 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 it changes the orientation depending on the ship orientation in the north up and true motion modes 1 26 Temporarily erasing
94. urrent brilliance is shown by the BRILL bar graph at the top right hand corner of the screen 5 Press the ENTER SELECT key to con clude your selection followed by the MENU key to close the menu 1 24 Thin trails Target trails may be painted with thinner lines if desired This can be useful when there are a lot of targets on the screen 1 Press the MENU key 2 Press the 2 key twice to select TGT TRAIL 3 Press the 6 key to show THIN TRAILON or OFF as appropriate 4 Press the 7 key to select 1 2 3or 4 as appropriate When there are a lot of tar gets on the screen select a larger num ber for thinner trails select a smaller number when there are few targets The default setting is 1 5 Press the ENTER SELECT key and MENU key in order Trail afterglow The strength of the synthetic afterglow to re main on the display may be selected as fol lows 1 Press the MENU key 2 Press the 2 key twice to select TGT TRAIL 3 Press the 4 key to select desired level from the LEVEL field 3 displays only the highest level of afterglow 4 Press the ENTER SELECT key and MENU key in order 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 The orientation of the index lines is controlled with the EBL rotary control and the intervals between the lines adjusted with the
95. utputting Target Position sc s e tene treu desea ced Rede 1 32 1 43 Background EPI 1 33 1 44 Selecting Range Scales 1 33 1 45 Selecting Bearing Scale Format noi netos er lc eee ERREUR ERUNT 1 33 1 46 A D Converter Curve Setting 1 34 1 47 Enlarging Close in Targets 1 34 EL P 1 35 1 49 PerormancedMORIDOE o aeri d en He Eon dee e eese n aoa tate LLLA 1 36 RADAR OBSERVATION 2 1 T MO M 2 1 2 2 FalSe BelOBS 4 25 hi b uut eee c bcc ee ele 2 2 2 3 SART Search and Rescue Transponder 2 3 2 4 RACON Radar Beacon ROV OE DO EORR ERR ERES 2 5 MAINTENANCE TROUBLESHOOTING 3 1 Periodic Maintenance Schedule to e a a a t ex x ER s 3 1 3 2 Life Expectancy or Major Parts utu qu e peus 3 2 3 9 P se Replacement oben ee te 3 3 3 4 o pn RR RU ERR ERN mU 3 3 SO OlMpPles FOUDISS IO OUI 5 56 3 3 3 6 Advanced level Troubleshooting 3 4 3 Diagnostie TS Ee ou u cad cur dedique re Ded io

Furuno FR-1710 User's Manual

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