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Furuno FR-7062 Radar Detector User Manual

1. 2 7 6 5 Automatic Acquisition 6 4 2 16 Using the Offset EBL 2 8 6 6 Terminating Tracking of Targets 6 5 2 17 Shifting off centering the Picture 2 9 6 7 Displaying Target Data 6 5 2 9 6 8 Mode and Length of Vectors 6 6 3 ADVANCED OPERATION SPECIFICATIONS SP 1 IN 1 3 1 Basic Menu Operation 3 1 vi Declaration of Conformity MENU TREE RINGS Off 1 2 3 max INDEX LINE Off On DISP DATA NAV Auto plotter NAV and Auto plotter INT REJECT Off On ARP 10 MENU OTHER MENU 1 Display 2 All Cancel 3 Vector Ref 1 Panel Dimmer 1 2 3 4 4 Vector Length 2 Mark Brill 1 2 3 4 5 History 3 HD Mark 1 2 3 4 6 CPA SET 4 Characters 1 2 3 4 7 TCPA SET 5 Trail Tone Single Multi 8 AUTO ACQ 6 Pulselength Short Long With ARP 10 only 7 Noise Reject Off On 8 Trail Time 15sec 30sec 1min 3min 6min 15min 30min Cont 9 Tune Auto Manual 10 WPT Mark Off On 11 EBL Ref Rel True 12 VRM Unit nm km sm t 13 Watchman Off 5min 10min 20min 14 STBY Disp Norm Econo Nav 15 Guard Mode In Out 16 Own Position L L TD 17 Cursor Posi B R L L 18 Alm Sense LV Low Mid High 19 Dead Sector Off On 20 Range 1 8 1 4 1 2 3 4 1 1 5 2 3 4 6 8 12 16 24 36 48 64 72 96
2. 5 1007 imin 5 10 20 20 Watchman starts Figure 3 10 How watchman works How watchman works When the time selected for the watchman rest period has elapsed the radar automatically transmits for one minute to check the condition inside the guard zone If there is no change the radar goes into stand by WATCHMAN ap pears during stand by If there is change the radar sounds the audible alarm cancels the watchman function and transmits continuously 3 6 Turning on watchman Create a guard zone usually 360 degrees with the guard alarm function Press the MENU key Select OTHER MENU Press the ACQ ENTER key Select 13 Watchman Nn A N Operate the trackball to select watchman rest period 5 minutes 10 minutes or 20 minutes 7 Press the ACQ ENTER key 8 Press the MENU key to close the menu WATCHMAN appears at the top of the screen the radar transmits for one minute to check for targets inside the guard zone and then the CRT shuts off and the radar goes into stand by Cancelling watchman Go into the OTHER MENU and set 13 Watchman for off Note 1 Watchman can be used without a guard zone Note 2 The alarm sounds just before the radar starts and stops transmitting 3 9 OTHER MENU Description The table below summarizes the OTHER MENU Table 3 2 OTHER MENU Description Item Description Panel Dimmer Selects
3. 2 6 ECHO cssc nerd E 3 4 Echonomy 2 3 Function Keys 3 8 Bi 5 1 G erm E 2 4 Guard Alarm 0446444422 4 3 4 G ard ZOMG edocet ti 3 4 H Head iie eei ries 2 6 Heading 2 6 l Index eer m ied 3 1 Indirect Echoes 4 2 Interference in e ie cer 3 2 L Lost target 6 6 M 44 5 3 Multiple 4 1 MENU TREE 44021 vii N Navigation 2 3 3 3 NOISE etree 3 8 North Marker 4 7 2 6 Nonn enis 2 6 OTHER MENU 3 7 Offc ntert eee eee 2 9 Offset EBL 4 4 0 00222 2 8 P Presentation Mode 2 6 Preventitive Maintenance 5 1 Program NO enia aieo 5 3 Pulsewidth ette 2 4 2 2 440040 02 2 4 R ptg 2 4 Range Ring 2 4 S GARI E ete im es ETUR TER iii Second trace echoes 3 8 Self Test 5 3 Sensitivity
4. 2 15 Measuring the Bearing There are two ways to measure the bearing to a target by the cursor and by the EBL Electronic Bearing Line Measuring bearing by cursor Operate the trackball to bisect the target with the cursor intersection The bearing to the tar get appears at the bottom of the display Measuring by EBL Press the EBL 1 or EBL 2 key 2 Operate the trackball to bisect the target with the EBL The trackball must be operated within five seconds after pressing an EBL key other wise the corresponding EBL cannot be oper ated Press the EBL key again to adjust the EBL 3 Check the EBL readout at the bottom left hand corner of the display to find the bear ing to the target 4 To anchor the EBL press the corresponding EBL key again To erase the EBL and its readout press and hold down the corresponding EBL key about two seconds 2 7 Target Cursor EBL1 EBL2 Cursor EBL Bearing EBL1 bearing 40 0 R EBL1 bearing 435 9 R 40 0 R 4 0 NM Figure 2 10 How to measure bearing by EBL and cursor Note The bearing readout for the EBL and the cursor can be displayed in relative or true bearing true bearing requires heading sensor input For North up and Course up display modes the bearing reference is always true Tips for measuring bearing Bearing measurements of smaller targets are more accurate the center of larger target pips is not as
5. Heading marker North marker Figure 2 6 Heading marker and north marker 2 13 Magnifying Long Range Echoes echo stretch Normally the reflected echoes from long range targets appear on the display as weaker and smaller blips even though they are compensated by the radar s internal circuitry The echo stretch function magnifies these small blips in all ranges Two types of echo stretch are available ES1 which stretches echoes in bearing direc tion and ES2 which stretches them in both range and bearing directions To turn the echo stretch on or off press the A C RAIN ES control Each press changes the echo stretch function in the sequence of ES1 ES2 and OFF ES1 or ES2 appears at the top right hand corner of display when echo stretch is on Bearing direction Bearing direction lt _ lt _ _ Range direction Echo stretch 1 Echo stretch 2 Figure 2 7 Echo stretch Note1 This function magnifies not only targets but also sea clutter and radar interference For this reason be sure the controls for adjustment of sea clutter and radar interference are properly adjusted before activating the echo stretch Note 2 ES2 is not available on short ranges 2 14 Measuring the Range You can measure the range to a target three ways by the range rings by the cursor and by the VRM Variable Range Marker Measuring range by range rings Count the number of rings between the center of the disp
6. 21 2nd Rej Off On 22 Self Test 23 Installation Setup Default setting Maximum range FR 7062 64 FR 7112 72 FR 7252 96 t Not available on N type radar vii SYSTEM CONFIGURATION Scanner Unit FR 7062 XN12A RSB 0070 059 L F UR UNO XN13A RSB 0070 059 XN12A RSB 0073 059 Navigation device IEC 1162 In Out IEC 1162 In Out Video Sounder Gyro a a es OG Gs Integrated Heading Sensor PG 1000 TRU 1746B 2 is available for FR 7252 using XN12A 48 rpm and XN13A Available with 24 rpm antenna only FR 7112 XN12A RSB 0072 060 XN13A RSB 0072 060 XN12A RSB 0073 060 FR 7252 XN12A RSB 0072 061 XN13A RSB 0072 061 XN12A RSB 0073 061 Display Unit FR 7062 7112 RDP 122 FR 7252 RDP 123 Auto Plotter RP 110 Slave Display FMD 811 8010 External Alarm 10 Buzzer OP03 21 CVD Converter ___ Remote Display __RP 6065B FMD 1800 Rectifier 1746 21 115 230 FR 7062 7112 12 24 32 VDC FR 7252 viii 24 32 VDC 10 50 60 Hz 1 PRINCIPLE OF OPERATION 1 1 What is Radar The term RADAR is an acronym meaning RAdio Detection And Ranging Although the basic principles of radar were developed dur ing World War II echoes as an aid to naviga tion is not a new development 1 2 How Ships Determin
7. IR2 P 3 8 EBL1 b i P 2 8 0 DABNM earing P 2 8 345 6 R g EBL2 bearing P 2 8 Le 23 0 R 135 R 0 142NM 0 100 Interference rejector P 3 2 Cursor bearing P 2 8 VRM1 range P 2 7 Cursor range P 2 7 VRM2 range 2 7 Figure 2 2 Display indications 2 2 2 3 Turning the Radar On Off Press the POWER key to turn the radar on To turn the radar off press the POWER key together with the STB Y TX key When the radar is turned on the control panel lights and a timer displays the time remaining for warm up of the magnetron the device which produces radar pulses counting down from 1 30 to 0 01 2 00 to 0 01 for FR 7252 2 4 Transmitting After the power is turned on and the magnetron has warmed up STBY Stand By appears at the screen center This means the radar is now fully operational Press the STBY TX key to transmit When transmitting any echoes from targets appear on the display This radar displays ech oes in eight tones of green according to echo strength SPEED Speed 10 5 x TRIP 2 5 Stand by When you won t be using the radar for an ex tended period but you want to keep it in a state of readiness place it in stand by by pressing the STBY TX key The display shows STBY default setting navigation data or goes into the economy mode You can select stand by condition on the menu More on
8. CURSOR WAYPOINT inati 34 56 12N 34 29 98N 0 09 NM Navigation 135 34 56E 136 35 77E 50 0 M Data SPD 35 0KT TTG 01 00 TTG 00 20 Figure 3 6 Typical navigation data display 3 6 Echo Trail You can show the movement of all radar tar gets relative to your vessel in afterglow This function is useful for alerting you to possible collision situations Starting echo trail Press the ECHO TRAIL key TRAIL the echo trail time selected on OTHER MENU and elapsed time appear at the top right hand corner of the display Then afterglow starts extending from all targets Figure 3 7 How the echo trail feature works Note Trails are restarted when range or mode is changed or zoom or shift is turned on Fixed time trail 1 When the elapsed time clock counts up to the trail time selected the elapsed time dis play freezes 2 The oldest portions of trails are erased so only the latest trail equal in length to the trail time selected is shown 3 Trail continues For example the one minute trail time is se lected When the elapsed time clock counts up to 60 seconds the elapsed time display freezes at 60 but the latest one minute of trail is erased and then trail continues Continuous trail The maximum continuous trail time is 99 min utes and 59 seconds When the elapsed time clock counts up to that time the elapsed time display is reset to zero and trail begins again Cancelling e
9. Cursor Posi Displays the cursor position in range bearing or lat long 18 Alm Sense LV Selects minimum echo strength which triggers guard alarm 19 Dead Sector Select On to display the dead sector which shows the area where the radar is not transmitted 20 Range Selects ranges to use 21 2nd Rej Select On to suppress second trace echoes 22 Self Test Tests keys ROM and RAM checks antenna rotation speed and displays program no 23 Installation Setup Level 1 and 2 are same brilliance while the menu is displayed The brilliance changes after the menu is erased For technicians 1 Can not be selected on N type radar VRM unit is fixed for nm 3 7 3 10 Function Keys The function keys F1 and F2 work like the auto dialing feature of a telephone automati cally executing the function assigned to them The assigned function can be turned on off by pressing appropriate function key again Default settings F1 Display NAV ARPA data F2 Noise rejector How to program function keys Press the MENU key 2 Press F1 or F2 to open the function menu SETTING FOR F1 KNOB Sel by amp press ENT Press MENU key to escape RINGS DISP STBY INT DATA DISP REJECT NOISE REJECT PULSE TRAIL TRAIL LENGTH TIME TONE TUNE GUARD A M IN OUT ALARM DEAD LEVEL SECTOR MARK BRILL WATCH PANEL CHARA MAN
10. Hours in use 000006 9H Tx hours 000001 1H Press MENU for OTHER menu Figure 5 1 Self test screen 4 The ROM and RAM are automatically checked If NG No Good appears to the right of ROM or RAM indication contact your dealer for advice ARP 10 TEST results ap pear only when optional ARP 10 board is mounted 5 To check the keyboard press any key except ACQ ENTER and POWER keys The pressed key s on screen location lights in black while the key is pressed if the key is operat ing properly 6 Press the ACQ ENTER key to check the display circuit The following pattern should appear Figure 5 2 Test pattern 7 To return to the Self Test menu press the MENU key 8 Toescape from the self test press the MENU key 5 5 Life Expectancy of Magnetron The following table shows the life expectancy of the magnetrons Table 5 3 Life expectancy of magnetrons Model Type Code no Life expectancy E3560 000 139 050 FR 7062 MG5389 000 135 146 MG5241 000 100 036 E FR 7112 2 000 3 000 hours E3566 Including stand by M1458 000 140 344 FR 7252 MG5436 000 140 762 5 3 6 ARP 10 OPTION A WARNING No one navigational aid should be relied upon for the safety of vessel and crew The navigator has the responsibility to check all aids available to confirm position Electronic aids are not a substitute for basic navigational principles
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 e Statement of Opinion N 00214133 AA 00 of 4 January 2001 issued Certification The Netherlands Test report 96323020 of 20 August 1998 prepared by Telefication The Netherlands and TI 1673 of 26 February 1998 prepared by Furuno Electric Co Ltd On behalf of Furuno Electric Co Ltd lt r ume 7 3 20 22 77 2224 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 FURUNO ELECTRIC CO LTD Ss UJ PQ UJ x Co 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Tel 81 798 65 2111 Fax 81 798 65 4200 Pub NO DOC 302 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 X band radar Model FR 7252 for navigation Serial No 3375 0002 Model name serial number is in conformity with the essential requirements as described in the Directive 1999 5 EC of the European 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 Dire
12. easily identified Bearings of stationary or slower moving tar gets are more accurate than bearings of faster moving targets To minimize bearing errors keep echoes in the outer half of the picture by changing the range scale angular difference becomes dif ficult to resolve as a target approaches the center of the display 2 16 Using the Offset EBL The offset EBL provides two functions predict collision course of radar target and measure the range and the bearing between two targets Predicting collision course 1 Operate the trackball to place the cursor on the center of the target 2 Press the EBL 1 key to turn on EBL1 3 Press the EBL OFFSET key EBL1 s ori gin shifts to cursor location 4 After waiting several minutes press the EBL 1 key again 2 8 5 Operate the trackball to pass EBL1 through the center of the target If the target tracks along the EBL towards the center of the display your vessel s position the target may be on a collision course To cancel the offset EBL press the EBL OFF SET key 6 0 NM EBL1 origin initial position of target Target moved here Offset EBL EBL1 m SX 0 m lt 2 EBL1 70 0 R 6 0 NMi VRM1 bearing range Figure 2 11 Predicting collision course by using the offset EBL Measuring range and bearing between two targets The procedure which follows shows how
13. issue of the standard s or other normative document s For assessment see Statement of Opinion N 00214131 AA 00 of 3 January 2001 issued by KTL Certification The Netherlands Test report 96310720of 1 October 1998 prepared by Telefication The Netherlands and TI 1672 of 26 February 1998 prepared by Furuno Electric Co Ltd On behalf of Furuno Electric Co Ltd a Lf A 2 Hiroaki Komatsu Nishinomiya City Japan Manager January 15 2001 International Rules and Regulations 7 7 VL Place and date of issue name and signature or equivalent marking of authorized person FURUNO ELECTRIC CO LTD UJ WUJ x Co 9 52 Ashihara Cho Nishinomiya City 662 8580 Hyogo Japan Tel 81 798 65 2111 Fax 81 798 65 4200 Pub NO DOC 300 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 X band radar Model FR 7112 for navigation Serial No 3373 0005 Model name serial number is in conformity with the essential requirements as described in the Directive 1999 5 EC of the European 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
14. it first sweeps rapidly 0 4 usec through the band before beginning a rela tively slow sweep 7 5 usec through the band back to the starting frequency This process is repeated for a total of twelve complete cycles At some point in each sweep the SART frequency will match that of the interrogating radar and be within the pass band of the radar receiver If the SART is within range the frequency 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 When the radar to the SART is reduced to about 1 n miles the radar display may show also the 12 respopnses generated during the fast sweeps These additional dot responses which also are equaly spaced by 0 64 nautical miles will be interspersed with the original line of 12 dots They will appear slightly weaker and smaler than the original dots Screen A When SART Screen B When SART is distant is close Radar antenna ay beamwidth Position of SART 9500 MHz Radar receiver 9200 MHz INA NNN NNNUN INN S D bandwidth us A Low frequency sweep signal Sweep starting Fast sweep signal Showing SART marks on the radar display To show the SART marks only on the radar display detune the radar receiver by the manual tuning out of best tuning condition This erases or weakens all normal radar ech oes but the SART marks are not erased because the SART respons
15. menu operation later Economy mode The CRT can be set to automatically turn itself off when in stand by to reduce power consump tion This feature is called the economy mode When the economy mode is on the ECONOMY indication under the STB Y TX key lights Navigation data display during stand by If a navigation aid inputs navigation data to this radar navigation data can be displayed during stand by You can turn the navigation data dis play on off through the menu Figure 2 3 shows a typical navigation data display during stand by 000 3 nm Trip distance since power DEPTH TEMPERATURE Depth 125 m 417 3 5 Temperature E TO Waypoint bearing 9 Heading 092 8 CRS 180 0 Course Time to go to OWPT TIG 01 08 TO Waypoint BRG 45 0 M N gt RNG 12 0NM 5 Bearing to TO a OWN SHIP SA LON Seance Ship s position in Range to TO Waypoint latitude and longitude and Loran TDs 0 3 Cross Track Error shows direction L XTE W XTE R and amount of error j 1 0 0 5 0 5 1 0 M is not displayed on N type radar Figure 2 3 Typical navigation data display during stand by 2 3 Note 1 Availability of a particular display item depends on incoming data Note 2 When Range to Waypoint reaches 0 1 nm the WPT mark jumps to dead ahead even though a difference may exist between h
16. nm range or 500 Hz on 96 nm range 3 Range Resolution Better than 20 m 4 Bearing Discrimination XNI2A within 1 99 XN13A within 1 29 5 Minimum Range 25 m 0 25 NM range 6 Bearing Accuracy Within 19 7 Range Ring Accuracy 0 9 96 of range or 8 m whichever is the greater 2 SCANNER UNIT 1 Radiator Slotted waveguide array 2 Polarization Horizontal 3 Antenna Rotation Speed 24 rpm nominal XN12A 100 kt max XN13A 100 kt max 48 rpm nominal XN12A 70 kt max 4 Radiator Length XN12A 120 cm 180 cm 5 Horizontal Beamwidth XNI2A 1 9 XN13A 1 2 6 Vertical Beamwidth 22 7 Sidelobe Attenuation XNI2A Within 320 of main lobe less than 24 dB Outside 320 of main lobe less than 30 dB Within 90 of main lobe less than 24 dB Outside 410 of main lobe less than 30 dB 3 TRANSCEIVER MODULE 1 Frequency 9410 MHz B0MHz X band 2 Modulation PON 3 Peak Output Power FR 7062 6 kW FR 7112 12 kW FR 7252 25 kW 4 Modulator FET Switching Method SP 1 5 Intermediate Frequency 60 MHz 6 Tuning Automatic or manual for manual select manual tuning on menu and tune by trackball 7 Receiver Front End MIC Microwave IC 8 Bandwidth Tx pulselength 0 08 0 3 5 25 MHz Tx pulselength 0 8 s 3 MHz 9 Duplexer Circulator with diode limiter 4 DISPLAY UNIT 1 Indication System PPI Daylight display raster scan 8 colors 2 Picture Tube 12 inch rectan
17. sequence is as shown below Y Change brill from Off to 1 Y Change brill from 1 to 2 y Change brill from 2 to 3 Y Change brill from 3 to max Y Change brill from max to Off Figure 3 2 Messages for RINGS menu 4 Press the MENU key to close the menu 3 2 Index Lines The index lines are useful for maintaining a constant distance between own ship and a coast line or partner ship They are linked with EBL2 and 2 x Figure 3 3 Index lines Turning the index lines on off 1 Press the MENU key 2 Select INDEX LINE by the trackball 3 Select Index Line on by pressing the ACQ ENTER key 4 Press the ACQ ENTER key to confirm 5 Press the MENU key to close the menu indication appears next to EBL at the left bottom corner of the screen To turn the index lines off select Index Line off and press the ACQ ENTER key Rotating the index lines 1 Press the EBL 2 key to activate EBL2 2 Operate the trackball Adjusting the index lines interval 1 Press the 2 key to activate VRM2 2 Operate the trackball 3 1 3 3 Suppressing Radar Interference Radar interference may occur when near another shipborne radar operating in the same frequency band as your radar Its on screen appearance is many bright dots either scattered at random or in the form of dotted lines extending from the center to the edge of the display Figure 3 4
18. targets come close to each other one of the two can become a lost target Should this happen reacquisition of the lost target is required after the two targets have separated 6 5 Automatic Acquisition The ARP 10 can acquire up to five targets au tomatically by setting the Auto Acquisition area predefined in the system If Auto ACQ is se lected after more than five targets have been manually acquired only the remaining capac ity of targets can be automatically are acquired For example when seven targets acquired manually then the Auto ACQ is switched on only three targets can be acquire automatically When five targets have been automatically ac quired AUTO TARGET FULL message ap pears at top left corner seven on the display Setting auto acquisition area Auto acquisition area is predefined between 2 0 and 2 5 nm in range and 45 on either side of the heading maker in bearing If a target comes into this area it is acquired automatically Figure 6 4 Auto acquisition area Follow the steps below to activate the auto ac quisition area 1 Open the ARP 10 MENU 2 Select 8 Auto ACQ by operating the trackball 3 Operate the trackball to select On 4 Press the ACQ ENTER key 5 Press the MENU key to close the menu 6 6 Terminating Tracking of Targets When the ARP 10 has acquired 10 targets no more acquisition occurs unless targets are lost Should this happen cancel tr
19. together Suppresses electrical noise Selects radar range EX ECONOMY 2 GAIN OFF PUSH A C SEA AIC AUTO PUSH A C RAIN lt t ES PUSH RANGE V Adjusts display brilliance Long press Doubles size of area between your vessel and location selected by cursor Short press Shifts your vessel s Y position to cursor location Y Displays target movement in afterglow Turns corresponding EBL on off BRILL H SHIFT ZOOM ECHO TRAIL EBL 1 EBL2 SELECT Long press Terminates plotting of the target selected with cursor t Short press Displays the data of target selected with the cursor t 1 Acquires the target selected with the cursor T 2 Registers selection on menus Default switch function T Requires ARP 10 option Y CANCEL ACQ Y ENTER gt MODE GUARD ALARM EBL OFFSET VRM 1 Control Adjusts sensitivity of radar receiver Switch Temporarily erases heading marker and north marker if displayed Control Reduces sea clutter Switch Automatically reduces sea and rain clutters L Control Reduces rain clutters Switch Enlarges echoes Selects presentation mode among HU CU NU and Sets cancels guard alarm s
20. 1 iiie hansen 2 4 Shadow Sectors 4 2 Side lobe Echoes 4 1 Stand Dy 2 3 T T mE 3 8 Trail re eee oet 3 4 2 3 Troubleshooting 5 2 Turning On and 2 3 V Vector length 6 6 Vector mode ree ette e tette etos 6 6 rA 2 7 W Watcnman nne 3 6 Z 2 9 IN 1 FURUNO ELECTRIC CO LTD Em UUJ 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 X band radar Model FR 7062 for navigation Serial No 3373 0005 Model name serial number is in conformity with the essential requirements as described in the Directive 1999 5 EC of the European 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 1 1 ITU R R App S3 Table 2 Edition 1998 title and or number and date of
21. 130 W 100 kt N12A 24rpm 105 W to 125 W 100 kt N12A 48rpm 120 W to 140 W 70 kt N13A 24rpm 115 W to 150 W 100 kt See Outline Drawings 8 CORTING COLOR 1 2 Display Unit Panel N3 0 Chassis 2 5GY5 1 5 Scanner Unit N9 5 9 COMPASS SAFE DISTANCE 1 2 10 1 2 3 4 5 6 7 8 9 Display Unit Standard 1 1 m Scanner Unit FR 7062 7112 Standard 1 0 m FR 7252 Standard 1 7 m ARP MODULE OPTION Steering 0 8 m Steering 0 8 m Steering 1 3 m Acquisition Range 0 2 to 16 NM Tracking Range 0 1 to 16 NM Maximum Number of Target 10 Acquisition Time Within 5 sec scanner rotation 24 rpm Alarm Timing Lost target blink mark collision alert Vector Length 30 sec 1 3 6 15 or 30 min selected on menu Plotting Interval 15 30 sec 1 2 3 or 6 min selected on menu Numeric Data Indication Distance Bearing Course Speed CPA TCPA Acquisition Available Speed 100 kt relative SP 4 Index A 6 4 AIC RAIN 2 5 ALG SEA ene da 2 4 ARPA ciinei 6 2 B 2 2 0400 2 7 Blind Sectols uiti ritieni 4 4 2 2 2 42 22 01 2 4 3 8 C Course Upe scien cetera 2 6 CPA TCPA 6 6 edd hearted 2 7 EBL 2 7 Echo
22. ARD ALARM key When this is done G ACKN replaces G IN This means the alarm is ac knowledged Press the key again to reactivate the alarm Cancelling the guard zone and alarm Press and hold down the GUARD ALARM key until the guard zone disappears 3 5 Notes on the guard alarm The alarm is a useful anti collision aid but does not relieve the operator of the respon sibility to also keep a visual lookout for pos sible collision situations When the radar range is less than one half of the guard zone range the guard zone disap pears and IN or G OUT appears in inverse video If this happens raise range to re display the guard zone Atarget echo does not always mean a land mass reef ships or surface objects but can imply returns from sea surface or precipita tion As the level of these returns varies with environment the operator should properly adjust the A C SEA A C RAIN and GAIN to be sure the alarm system does not over look target echoes 3 8 Watchman The watchman function periodically transmits the radar for one minute to check for targets in a guard zone If it finds change in the zone from the previous transmission the audible alarm sounds and the radar transmits continuously This feature is useful when you do not need the radar s function continuously but want to be alerted to radar targets in a specific area Tx Stby Tx Stby y v 5 E 1
23. DIMMER CTERS OTHER EBL VRM MENU INDEX REF UNIT LINE WPT MARK CURSOR OWN POSITN POSITN VECTOR LENGTH ARP 10 ALL VECTOR DISP CANCEL REF AUTO NO TORY ACQ FNCTN HIS COLLI SION Figure 3 10 Function menu 3 Select function desired 4 Press the ACQ ENTER key 5 Press the MENU key to close the menu 3 11 Adjusting Brilliance of Markers 2 Mark Brill on the OTHER MENU adjusts the brilliance of markers such as the cursor 3 8 3 12 Suppressing Second Trace Echoes In certain situations echoes from very distant targets may appear as false echoes second trace echoes on the screen This occurs when the re turn echo is received one transmission cycle later namely after a next radar pulse has been transmitted To suppress them select 2nd Rej On on the OTHER MENU 3 13 Suppressing Noise Electrical noise can be suppressed by turning on 7 NOISE on the OTHER MENU This function is available by pressing the F2 key default setting 3 14 Outputting Target Position Target position data can be output to a plotter in IEC 1162 format Press and hold down the TLL key to output the data This function re quires position data and heading signal 3 15 Tuning the Receiver The radar receiver can be tuned automatically or manually and the default tuning method is automatic In automatic tuning the radar i
24. LFUIRWIINI OPERATOR S MANUAL MARINE RADAR MopEL FR 7062 7112 7252 p FURUNO ELECTRIC CO LTD NISHINOMIYA JAPAN FURUNO ELECTRIC CO LTD 9 52 Ashihara cho Nishinomiya Japan Telephone 0798 65 2111 Telefax 0798 65 4200 All rights reserved Printed in Japan PUB No OME 34590 YOSH FR 7062 7122 7252 Your Local Agent Dealer FIRST EDITION APR 1998 E JAN 25 2001 00080819800 A SAFETY INSTRUCTIONS A DANGER Stay away from transmitting antenna The radar antenna emits microwave radiation which can be harmful to the human body particularly the eyes Never look directly into the antenna radiator from a distance of less than 1 m when the radar is in operation Radio Frequency Radiation Hazard The radar antenna emits electromagnetic radio frequency RF energy which can be harmful particularly to your eyes Never look directly into the antenna aperture from a close distance while the radar is in operation or expose yourself to the transmitting antenna at a close distance Distances at which RF radiation levels of 100 and 10 W m exist are given in the table below Note If the antenna unit is installed at a close distance in front of the wheel house your administration may require halt of transmission within a certain sector of antenna revolution This is possible Ask your FURUNO representative or dealer to provide this feature Distance to 10 W m point Distanc
25. acking of indi vidual targets or all targets by the procedure described below Individual targets Place the cursor on the target which you do not want to be tracked any longer by operating the trackball and press and hold down the SE LECT CANCEL key All targets Tracking of all targets can be canceled from the ARP 10 MENU 1 Open the ARP 10 MENU 2 Select 2 All Cancel 3 Press the ACQ ENTER key 6 7 Displaying Target Data The ARP 10 calculates motion trends range bearing course speed CPA and TCPA of all targets being tracked at the ARPA Data area To turn ARPA data on 1 Press the MENU key 2 Select the DISP DATA 3 Press the ACQ ENTER key to select the message for ARP or NAV and ARP 4 Press the ACQ ENTER key to set 5 Press the MENU key to close the menu A CAUTION At the speed under 5 kts the target data is displayed with a delay because of filtration Place the cursor on a wanted target and press the SELECT CANCEL key Data on the se lected target is displayed at the bottom of the screen The symbol of the selected target gets twice as large as the normal circle The data in cludes the following RNG BRG Range Bearing Range and bear ing from own ship to the last plotted or selected target position with suffix True or M Magnetic For true bearings suffix T is used in case of gyrocompass input and suffix is used in c
26. adar bearing error e Gyrocompass error Course change own ship or target 6 1 6 1 General The Auto Plotter ARP 10 is an optional circuit board which is accommodated in the display unit of the FR 7062 radar The Auto Plotter permits manual or automatic acquisition and automatic tracking of up to 10 radar targets An internal microprocessor cal culate target data such as speed and course and displays the results in alphanumeric and by vec tors To ensure the reliability of the displayed target data the radar must be properly adjusted for minimum sea returns and noise Principal specifications Acquisition and tracking e Acquisition of up to 10 targets between 0 2 and 16 nm e Automatic tracking of up to 10 acquired tar gets between 0 1 and 16 nm Vectors Vector length 30 5 1 3 6 15 30 min Orientation True velocity or relative velocity Past positions 5 past positions at intervals of 15 30 s 1 2 3 6 min Alarm Visual and audible alarms against targets vio lating CPA TCPA limits visual alarm against lost targets Target discrimination A target measuring about 800 m or more in the radial or circumferential direction is regarded as a landmass and not acquired or tracked Ech oes smaller than about 800 m are regarded as true targets NOTICE Heading data required for plotting function 6 2 6 2 Keys Used for Auto Plotter The Auto plotter utilizes the following touchpad keys G
27. ally acquire a target Up to 10 targets can be manually ac quired 1 Place the cursor on a target of interest by operating the trackball 2 Press the ACQ ENTER key The plot symbol changes its shape according to the status as below A vector appears in about one minute after acquisition indicating the target s motion trend If the target is consistently detected for three minutes the plot symbol changes to a solid mark If acquisition fails the target symbol blinks and disappears shortly SQUARE dotted Immediately after acquisition Plot symbol shown in broken lines SQUARE dotted with vector One minute after acquisition Vector still unre liable cf CIRCLE Solid with a vector 3 minutes after acquisition Plot symbol changes to a solid circle indicating the stable tracking condition 7 LARGE SQUARE The plot symbol of a target being tracked be comes twice as large as the normal symbol when the target is selected for data reading Note 1 The target to be acquired should be within 0 2 to 16 nm from own ship and not ob scured by sea or rain clutter Note 2 When you want to acquire 11th target cancel tracking one of less important targets 6 4 Note 3 When auto acquisition mode Auto ACQ is on up to five targets can be acquired For details see 6 5 Automatic Acquision A WARNING When a tracked target nears another tracked target the targets may be swapped When two
28. and common sense e This auto plotter automatically tracks an automatically or manually acquired radar target and calculates its course and speed indicating them by a vector Since the data generated by the auto plotter are based on what radar targets are selected the radar must always be optimally tuned for use with the auto plotter to ensure required targets will not be lost or unwanted targets such as sea returns and noise will not be acquired and tracked A target does not always mean a land mass reef ships or other surface vessels but can imply returns from sea surface and clutter As the level of clutter changes with environment the operator should properly adjust the A C SEA A C RAIN and GAIN controls to be sure target echoes are not eliminated from the radar screen A CAUTION The plotting accuracy and response of this auto plotter meets IMO standards Tracking accuracy is affected by the following e Tracking accuracy is affected by course change One to two minutes is required to restore vectors to full accuracy after an abrupt course change The actual amount depends on gyrocompass specifications amount of tracking delay is inversely proportional to the relative speed of the target Delay is on the order of 15 30 seconds for high relative speed 30 60 seconds for low relative speed Display accuracy is affected by the following e Echo intensity e Radar transmission pulsewidth e R
29. arac teristics of own ship A WARNING The CPA TCPA alarm feature should never be relied upon as a sole means for detecting the risk of collision The navigator is not relieved of the responsibility to keep visual lookout for avoiding collisions whether or not the radar or other plotting aid is in use Follow the steps shown below to set the CPA TCPA alarm ranges 1 Open the 10 2 On the CPA Set line select a CPA limit desired Off 0 5 1 2 3 5 6 nm 3 Press the ACQ ENTER key 4 On the Set line select a TCPA limit desired 30s 1 2 3 4 5 6 12M 5 Press the ACQ ENTER key 6 Press the MENU key to close the menu The flashing of the triangle plot symbol and vector remains on the screen until the danger ous situation is no longer present or you inten tionally terminate tracking of the target by using the SELECT CANCEL key Lost target alarm When the system detects a loss of a tracked tar get the target symbol becomes a flashing dia mond SPECIFICATIONS OF MARINE RADAR FR 7062 7112 7252 1 GENERAL 1 Indication System PPI Daylight display raster scan 8 tones in monochrome 2 Range Pulselength PL amp Pulse Repetition Rate PRR range max FR 7062 64 nm FR 7112 72 nm FR 7252 96 nm Range nautical miles PL ferr 0425 NEM 2 6 1216 24 se 48 64 72 6 e 2100 Hz 0 08 Sa 550 Hz on 48 nm to 72
30. ase of magnetic compass input Note M is not displayed on N type radar COURSE SPEED Course Speed Course and speed are displayed for the last plotted or selected target with suffix True or Magnetic For true bearings suffix T is used in case of gyrocompass input and suffix is used in case of magnetic compass input Note M is not displayed on N type radar CPA Closest Point of Approach The clos est range a target will approach to own ship Do not confuse it with the operator preset CPA alarm limit TCPA The time to CPA measured with present speeds of own ship and the targets Both CPA and TCPA are automatically calculated When a target ship has passed clear of own ship the CPA is displayed and the TCPA appears as TCPA is counted up to 99 9 min and beyond this it is indicated as TCPA gt 99 9 min 6 5 6 8 Mode and Length of Vectors True or relative vector Target vectors are displayed in relative or true mode Own ship does not have a vector rela tive mode Vector length From the ARP 10 MENU Vector Length can be set to 30 seconds 1 3 6 15 or 30 minutes and the selected vector time is indicated on the screen The vector tip shows an estimated position of the target after the selected vector time elapses It can be valuable to extend the vector length to evaluate the risk of collision with any target Past position display The ARP 10 displays equally t
31. ation as you could injure the cornea of your eyes Always make sure the radar is set to stand by or is turned off before starting work on the scanner unit 5 1 Preventive Maintenance Regular maintenance is important for good per formance Always keep the equipment as free as possible from dirt dust and water splashes Make sure all screws securing the components are prop erly tightened A maintenance program should be established and should at least include the items listed in Table 5 D 5 2 Replacing the Fuse The fuse in the fuse holder at the back of the dis play unit protects the equipment against reverse polarity of ship s mains overcurrent and equip ment fault If the fuse blows find the cause be fore replacing it Never use an incorrect fuse serious damage to the equipment may result and void the warranty FR 7062 7112 is shipped with a 15 A fuse for 12V ship s mains If the ship s mains is 24 32V change the fuse to 10 A supplied FR 7252 is supplied with a 10A fuse for 24 32 V ship s mains A CAUTION Use the proper fuse Use of a wrong fuse can result in equipment damage Table 5 1 Recommended maintenance program Period Item Check point Remarks 3 to 6 Exposed Check for corroded or loosened Sealing compound may be used months nuts and nuts and bolts If necessary instead of paint Apply a small bolts on clean and repaint them thickly amount of grease between nut
32. ce should ever be solely replied upon for the navigation of a vessel Always confirm position against all available aids to navigation for safety of vessel and crew The guard alarm is a useful anti collision aid but does not relieve the operator of the responsibility to also keep a visual lookout for possible collision situations The alarm should never be used as the sole means for detecting possible collision situations Two warning labels are attached to the display unit and scanner unit Do not remove these label If labels are peeling off or are illegible contact a FURUNO agent or dealer Display Unit Name Warning Label 1 Type Code no 100 236 230 Scanner Unit Name Radiation Warning Type Code N WARNING N To avoid electrical shock do not remove cover No user serviceable parts inside 86 003 1011 0 BEES LM EGU AI EBBU ABB IL SERB DS HECH 5 amp bocfsl ci WARNING Radiation hazard Only qualified personnel should work inside scanner Confirm that TX has stopped before opening scanner Label 03 142 3201 0 no 100 266 890 SART Search and Rescue Transponder A Search and Rescue Transponder SART may be triggered by any X Band 3 cm radar within a range of approximately 8 n miles Each radar pulse received causes it to transmit a response which is swept repetitively across the complete radar frequency band When interrogated
33. cho trail Press the ECHO TRAIL key again 3 4 Changing trail attributes Trail gradation and trail time can be selected on the OTHER MENU Table 3 1 Trailing attributes Items in OTHERS menu Description Trails can be shown in single or multiple gradations Multiple paints trails getting thinner with time just like the afterglow Trail Tone on an analog PPI radar Multiple Single Trails can be set for 15 sec 30sec Imin 3min 6min 15min 30min or continuous Trail Time 3 7 Guard Alarm The guard alarm allows the operator to set the desired range and bearing for a guard zone When ships islands landmasses etc violate the guard zone an audible alarm sounds and the offending target blinks to call the operator s at tention Selection of guard zone type The guard alarm can be set to sound when a target enters or exits the guard zone You can select which type of guard alarm you want through the menu In alarm The alarm sounds on targets entering the guard zone G IN appears at the top right hand corner when the In alarm is selected Out alarm The alarm sounds on targets exiting the guard zone G OUT appears at the top right hand corner when the Out alarm is selected Dashed line no alarm aa i LI s LI Ld Ld at y 7 Guard zone IN ALARM OUT ALARM Figure 3 8 In and Out alarm Setting a guar
34. ctive 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 e Statement of Opinion N 00214135 AA 00 of 4 January 2001 issued by KTL Certification The Netherlands Test report 96323120 of 20 August 1998 prepared by Telefication The Netherlands TI 1674 of 13 March 1998 prepared by Furuno Electric Co Ltd On behalf of Furuno Electric Co Ltd Hiroaki ei 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
35. d zone Preparation 1 Press the MENU key and then select OTHER MENU and press the ACQ EN TER key 2 Select 15 Guard Mode and In alarm on target entering zone or Out alarm on target exiting zone by operating the trackball 3 Press the ACQ ENTER key 4 Press the MENU key to close the menu To set a guard zone 1 Mentally create the guard zone you want to set For example the guard zone shown in Figure 3 9 1 2 Operate the trackball to set the cursor on point A or B Press the GUARD ALARM key G IN or G OUT with aster isk blinking appears at the top right hand corner of the display See Figure 3 9 2 The asterisk indicates the guard zone is partially set 3 Operate the trackball to set the cursor on point C or D See Figure 3 9 3 4 Press the GUARD ALARM key The as terisk disappears See Figure 3 9 4 Asterisk blinking Guard zone gt to set A G IN A D B Drag cursor here 1 Mentally create the guard zone to set 2 Drag cursor to top left corner of zone and press GUARD ALARM Y G IN Drag cursor here 3 Drag cursor to bottom right corner of zone and press GUARD ALARM 4 Guard zone completed Figure 3 9 How to set the guard zone Silencing the audible alarm Any radar targets violating the guard zone will trigger the audible alarm You can silence the audible alarm by pressing the GU
36. e hid den 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 leeward but a little is still visible windward 1 Confirm that the sensitivity is properly ad justed and then transmit on short range 2 Adjust the A C SEA control so small tar gets are distinguishable but some clutter re mains on the display Sea clutter at display center A C SEA control adjusted sea clutter suppressed Figure 2 4 How to adjust the A C SEA control Tip for adjusting the A C SEA common mistake is to over adjust the circuit so all the clutter is removed As an example set up for maximum A C SEA You will see how the center of the display becomes dark This dark zone can be dangerous targets may be missed especially if the sensitivity is not prop erly adjusted Always leave a little clutter vis ible on the display to be sure weak echoes will not be suppressed If there is no clutter visible on the display turn off the circuit N CAUTION Turn off the A C SEA control when its use is not required the control can erase weak targets 2 10 Adjusting the A C RAIN Control reducing rain clutter The vertical beamwidth of the antenna 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 hail etc in the same ma
37. e signal scans over all frequencies in the 9 GHz band When the radar approaches the SART in operation the SART marks will enlarge to large arcs blurring a large part of the screen Reduce the sensitivity and adjust the sea clutter control of the radar Summary to detect SART response 1 Use range scale of 6 or 12 nm as the spacing between the SART responses is about 0 6 nm 1125 m to distinguish the SART 2 Turn off the A C AUTO function 3 Turn off the Interference Rejector General remarks on receiving SART Radar range scale When looking for a SART it is preferable to use either the 12 nautical mile range scale This is because the total displayed length of the SART response of 12 or 24 dots may extend approximately 9 5 nautical miles beyond the position of the SART and it is neces sary to see a number of response dots to distinguish the SART from other responses SART range errors When responses from only the 12 low frequency sweeps are visible when the SART is at a range greater than about 1 n mile the position at which the first dot is displayed may be as mush as 0 64 n mile beyond the true position of the SART When the range closes so that the fast sweep responses are seen also the first of these will be no more than 150 meters beyond the true position FOREWORD Congratulations on your choice of the FURUNO FR 7062 7112 7252 Marine Radar We are confident you will see why the FURUNO name has become synony
38. e to 100 W m Model point Radiator type XN12A 4 Worst case 2 5 m FR7062 X bnd 6 kW Nil XN13A 6 Worst case 2 3 m FR7112 X bnd 12 kW XN12A 4 Worst case 0 5m Worst case 7 5 XN13A 6 Worst case 0 3 m Worst case 7 0 m XN12A 4 Worst case 0 8 m Worst case 9 5 m FR7252 X bnd 25 kW XN13A 6 Worst case 0 7 m Worst case 9 0 m A DANGER Before turning on the radar make sure no one is near the scanner unit Prevent the potential risk of someone begin struck by the rotating antenna and exposure to RF radiation hazard A WARNING Do not open the equipment Improper handling can result in electrical shock Only qualified personnel shold work inside the equipment 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 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 A WARNING Use the proper fuse Fuse rating is shown in the chapter 5 Use of a wrong fuse can result in equipment damage Do not operate the equipment with wet hands Electrical shock can result A CAUTION No one navigation devi
39. eading and BRG to WPT Note 3 When cross track error exceeds 1 nm on either side the XTE mark starts blinking 2 6 Selecting the Range The range selected automatically determines the range ring interval the number of range rings pulselength and pulse repetition rate for opti mal detection capability in short to long ranges You can select which ranges and pulselength for 1 5 and 3 mile ranges to use through the menu The range range ring interval and pulselength appear at the top left hand corner of the display Selecting the range Press the RANGE key The range and range ring interval appear at the top left corner on the display Tips for selecting the range When navigating in or around crowded har bors select a short range to watch for pos sible collision situations f you select a lower range while on open water increase the range occasionally to watch for vessels that may be heading your way 2 7 Adjusting Picture Brilliance The BRILL key adjusts the brilliance of the radar picture in sixteen levels Press the BRILL key to set the brilliance level The current level momentarily appears on the screen 2 4 2 8 Adjusting Receiver 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 the signals received The proper setting is such that the background noise is ju
40. ed Position Before Radar Before the invention of radar when running in fog near a rugged shoreline ships would sound a short blast on their whistles fire a shot or strike a bell The time between the origination of the sound and the returning of the echo indi cated how far the ship was from the cliffs or the shore The direction from which the echo was heard indicated the relative bearing of the shore 1 3 How Radar Determines Range Radar determines the distance to the target by calculating the time difference between the transmission of a radar signal and the reception of the reflected echo It is a known fact that ra dar waves travel at a nearly constant speed of 162 000 nautical miles per second Therefore the time required for a transmitted signal to travel to the target and return as an echo to the source is a measure of the distance to the tar get Note that the echo makes a complete round trip but only half the time of travel is needed to determine the one way distance to the target This radar automatically takes this into account in making the range calculation 1 4 How Radar Determines Bearing The bearing to a target found by the radar is determined by the direction in which the radar scanner antenna is pointing when it emits an electronic pulse and then receives a returning echo Each time the scanner rotates pulses are transmitted in the full 360 degree circle each pulse at a slightly different bearing from the
41. eiver oiana 3 8 1 6 The Radar Display 1 1 2 BASIC OPERATION D 4 1 Multiple Echoes eee 4 c D re oed 2l 42 Side lobe Echoes 1 42 2 4 1 Tay and 232 4 3 Indirect Eelioescuii o 4 2 2 3 T rning the Radar iais ae 4 4 Blind and Shadow Sectors 4 2 2 4 Transmitting eroe uet ors 2 3 2 5 Stand by 2 3 5 MAINTENANCE amp TROUBLE 2 6 Selecting the Range 2 4 SHOOTING 2 7 Adjusting Picture Brilliance 2 4 5 1 Preventative Maintenance 5 1 2 8 Adjusting Receiver Sensitivity 2 4 5 2 Replacing the Fuse 5 1 2 9 Adjusting the A C SEA Control 5 3 Troubleshooting 5 2 Medus CER IUe cuc ies d SAGE Testo e 5 3 _ p 4 pon 2 5 5 5 Life Expectancy of Magnetron 5 3 2 11 Selecting the Presentation Mode 2 6 6 ARP 10 OPTION 2 12 Erasing the Heading Marker North Marker 2 6 6 1 General 4 44 0 00 6 2 2 13 Magnifying Long Range Echoes 6 2 Keys Used for Auto Plotter 6 2 echo 2 6 6 3 Activating the Auto Plotter 6 3 2 14 Measuring the Range 2 7 6 4 Manual Acquisition 6 4 2 15 Measuring the Bearing
42. gular 184 mm x 245 mm monochrome CRT effective display area more than 180 mm 3 Range Range Interval Number of Rings range max FR 7062 64 nm FR 7112 72 nm FR 7252 96 nm 075 1 15 213 4 6 8 12 16 24 36 48 64172196 0 25 fo2sloslos 1 1 2 2 3 4 e ia r2 re s oa 3 4 Markers Heading Line Bearing Scale Range Rings Variable Range Marker VRM1 VRM2 Electronic Bearing Line EBL1 EBL2 Tuning Bar Cursor Parallel Cursor Alarm Zone Waypoint Mark navigation input required North Mark heading sensor input required 5 Alphanumeric Indications Range Range Ring Interval Pulselength SP MP LP Display Mode HU CU NU TM Interference Rejection IR 1 IR2 IR3 Variable Range Marker VRM1 VRM2 Electronic Bearing Line EBL1 EBL2 Automatic A C SEA A C AUTO Stand by ST BY Radar Alarm G IN G OUT G ACKN Echo Stretch ES1 ES2 Cursor Range Bearing or L L Position Echo Tailing TRAIL Trailing Time Trailing Elapsed Time Navigation Data navigation input required Heading HDC heading sensor input required 6 Input Data 0183 Ver 1 5 2 0 current loop Own ship s position GGA gt RMC gt RMASGLL GLL is available Ver 1 5 only Speed RMC gt RMA gt VTG gt VHW Heading True HDT gt HDG gt HDM gt VHW gt VHW SP 2 Heading Magnetic HDM HDG HDT VHW VHW Course True RMC gt RMA gt VTG Course Magnetic VTG gt RMC gt RMA Waypoint Range Bearing _RMB gt BWC g
43. icate they are not direct echoes Obstruction Antenna mast funnel True Indirect echo Heading line Indirect Indirect echo echo Figure 4 3 Indirect echoes 4 4 Blind and Shadow Sectors Funnels stacks masts or derricks in the path of antenna may reduce the intensity of the ra dar beam If the angle subtended at the antenna is more than a few degrees a blind sector may be produced Within the blind sector small tar gets at close range may not be detected while larger targets at much greater ranges may be detected See Figure 4 4 Vessel taller than wharf Mast etc in path of radar Wharf beam Wharf Blind sector no echo Size of blind sector depends on target size and range Figure 4 4 Blind and shadow sectors 5 MAINTENANCE amp TROUBLESHOOTING This chapter tells you how to keep your radar in good working order Before reviewing this chap ter please read the safety information which fol lows A DANGER Turn off the power before performing any maintenance or troubleshooting procedure Hazardous voltages can shock burn or cause death Only qualified personnel totally famillier with electrical circuits should work inside the units RF RADIATION HAZARD The radar scanner emits high frequency radio radiation which can be harmful particularly to your eyes Never look directly into the scanner from a distance of less than two feet when the radar is in oper
44. il lustrates interference in the from of curved spokes Interference effects are distinguishable form normal echoes because they do not ap pear in the same place on successive rotations of the antenna Figure 3 4 Radar interference Four levels of interference are available includ ing off IR1 IR2 IR3 and OFF IR3 provides the highest level of rejection 1 Press the MENU key 2 Select INT REJECT and press the ACQ ENTER key 3 Select level desired by pressing the ACQ ENTER key 4 Press the MENU key to close the menu IR and level selected appears at the bottom right corner on the display when the interference re jection circuit is turned on 3 4 Selecting Pulsewidth Pulsewidth is the transmission time of a single radar pulse The longer the pulsewidth the greater the direction range capability however range accuracy and range resolution are re duced Pulsewidth can be selected to short or long on the 1 5 and 3 nautical mile ranges 1 Press the MENU key 2 Select OTHER MENU and press the ACQ ENTER key OTHERS Select item by T ball and press ENTER key ll Panel Dimmer 1 2 3 2 Mark Brill 1 2 3 3 HD Mark 1 2 3 4 Characters 1 2 3 5 Trail Tone Multi 6 Pulselength Short ong 7 Noise Reject On 8 Trail Time 30sec 1min 3min 15min 30min Cont 9 Tune Manual 10 WPT Mark 11 EBL Ref True 12 VRM Unit km sm 13 Watchman 5
45. ilences ry audible alarm Measures range and bearing between two targets predicts collision course Turns corresponding VRM on off Long press Outputs target data position data to plotter Short press Alternately displays cursor position display in lat long or bearing range Functuion is available when nav data is not displayed Opens closes menus Trackball 1 Shifts cursor EBL and VRM 2 Sets guard zone 3 Selects items and options on menu 4 Shifts origin of EBL and VRM Figure 2 Control panel 2 2 Display Indication and Markers Tuning status P 3 8 Echo trail elapsed time P 3 4 Heading requires heading data Heading marker P 2 6 Tuning bar P 3 8 Echo trail time P 3 4 Guard Zone P 3 4 Zoom P 2 9 or Off center P 2 9 Range P 2 4 0 125NM Range ring interval P 2 4 gt 0 0625 SP Pulselength P 2 4 DE od Display mode P 2 6 2nd trace echo CAN d suppressor P 3 8 EBL2 P 2 7 Guard zone area 3 4 71 EBL1 P 2 7 Range ring P 2 7 VRM1 P 2 7 2 2 7 Index lines P 3 1 5 Cursor P 2 7 RSS North marker 2 6 BS NY A C 1 Noise rejector A C AUTO 2 5 AUTO
46. ime spaced dots maximum 5 dots marking the past positions of any targets being tracked If a target changes its speed the spacing will be uneven If it changes course its plotted course will not be a straight line in TM mode Operational warnings There are two main situations which cause the ARP 10 to trigger visual and audible alarms alarm e Lost target alarm CPA TCPA alarm Visual and audible alarms are generated when the predicted CPA and TCPA of any target be come less than their preset limits The audible alarm continues for 10 seconds The ARP 10 continuously monitors the pre dicted range at the Closest Point of Approach CPA and predicted time to CPA TCPA of each tracked target to own ship When the predicted CPA of any target becomes smaller than a preset CPA alarm range and its predicted TCPA less than a preset TCPA alarm limit the ARP 10 releases an audible alarm In addition the target plot symbol changes to a triangle and flashes together with its vector 6 6 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 ra dar controls are properly adjusted and the ARP 10 is set up so that it can track targets effectively CPA TCPA alarm ranges must be set up prop erly taking into consideration the size tonnage speed turning performance and other ch
47. iven below is a brief description of these keys MENU Displays Erases the main menu SELECT CANCEL Long press Terminates plotting of the target selected with the cursor Short press Displays the data of target selected with the cursor ACQ ENTER Acquires the target selected with the cursor ARP 10 MENU operation The ARP 10 MENU includes the followings Display Turns on off the plot symbols past positions and target data All Cancel Cancels the tracking of all targets Vector Ref Selects relative vector or true vectors Vector Length Selects vector time History Selects past position plot interval CPA Set Selects CPA alarm limit When a target is pre dicted to come within this limit an aural alarm sounds and at the same time the corresponding target symbol changes to a blinking triangle Note If the preset CPA limit is set at OFF a target which is on collision course will not pro duce an alarm TCPA Set Selects TCPA alarm limit Auto ACQ Turns on off Auto Acquisition Area 6 3 Activating the Auto Plotter To activate the ARP 10 follow the steps shown below 1 Adjust the GAIN A C SEA and A C RAIN controls for proper radar picture Press the MENU key to open the main menu Operate the trackball to select 10 MENU Press the ACQ ENTER key The menu shown in Figure 6 1 appears Operate the trackball to select the menu item 1 Di
48. lay and the target Check the range ring interval and judge the distance of the echo from the inner edge of the nearest ring To turn the rings on or off see the menu opera tion later Chapter 3 Measuring range by cursor Operate the trackball to place the cursor inter section on the inside edge of the target echo The range to the target as well as the bearing appears at the bottom of the display Measuring by VRM 1 Press either 1 or VRM 2 key The readout of the active marker is circum scribed _ _ Figure 2 8 Display bottom showing location of EBL and VRM readouts 2 Operate the trackball to place the outside edge of the VRM on the inside edge of the target The trackball must be operated within five seconds after pressing a key oth erwise the corresponding VRM cannot be operated Press the VRM key again to ad just the VRM 3 Check the VRM readout at the bottom right hand corner of the display to find the range to the target 4 To anchor the VRM press the VRM key again To erase the VRM press and hold down the corresponding key about two seconds Range 6 0 NM Range ring 20 interval Target Cursor 4 2 4 0 Cursor range Figure 2 9 Measuring range by the cursor and VRM Note You can display the range readout of the VRM and cursor in nautical miles statute miles or kilometers For details see the next chapter
49. level of panel backlight Mark Brill Selects brilliance of VRM EBL cursor guard zone and WP marks HD Mark Characters Selects brilliance of heading marker Selects brilliance of characters Trail Tone Selects gradations of echo trails Pulselength Selects pulselength for 1 5 and 3 mile ranges Noise Reject Select On to reject noise Trail Time Selects the trail time Tune Selects automatic or manual tuning To tune manually 1 Select Manual by the trackball 2 Press the ACQ ENTER key to enable manual tuning 3 While pressing and holding down the GAIN control operate the trackball adjustment range FR7062 1 0 11 9V FR7112 7252 1 0 32 V 4 Press the MENU key to close the menu MANUAL appears at the top right hand corner when manual tuning is in effect 10 WPT Mark Selects On to display the waypoint mark 11 EBL Ref Selects EBL reference for relative or true 12 VRM Unity Selects distance unit of VRM and cursor for nm km or sm 13 Watchman Turns watchman on set rest period or off 14 STBY Disp Selects the condition at stand by display STBY or navigation ata or go into the economy mode 15 Guard Mode Selects condition which triggers guard alarm in or out 16 Own Position Displays the own ship s position in lat long or Loran C TDs Requires NAV data 17
50. ly adjusting the A C SEA True echo Own ship Multiple echo Figure 4 1 Multiple echoes 4 2 Side lobe Echoes Every time the antenna rotates some radiation escapes on each side of the beam called side lobes If a target exists where it be detected by the side lobes as well as the main lobe the side lobe echoes may be repre sented on both sides of the true echo at the same range as shown in Figure 4 2 Side lobes show usually only at short ranges and from strong tar gets They can be reduced through careful re duction of the sensitivity or proper adjustment of the A C SEA Main lobe True echo J Side lobe Spurious target Antenna Figure 4 2 Side lobe echoes 4 1 4 3 Indirect Echoes Indirect echoes may be returned from either a passing ship or returned from a reflecting sur face on your own ship for example a stack In both cases the echo will return from a legiti mate contact to the antenna by the same indi rect path The echo will appear on the same bearing of the reflected surface but at the same range as the direct echo Figure 4 3 illustrates the effect of an indirect echo Indirect echoes may be recognized as follows they usually occur in a shadow sector they appear on the bearing of the obstruc tion but at the range of the legitimate con tact when plotted their movements are usually abnormal and their shapes may ind
51. min 10min 20min 14 STBY Disp Econo Nav 15 Guard Mode Out 16 Own Position TD 17 Cursor Posi L L 18 Alm Sense LV Med Hig 19 Dead Sector On 20 Range 14 1 PUE 2 4 BH Bic eee 21 2nd Rej On 22 Self Test 23 Installation Setup Not displayed on N type radar VRM unit is fixed for nm Max range is FR 7062 64 FR 7112 72 FR 7252 96 Figure 3 5 OTHER MENU 3 Select 6 Pulselength by operating the trackball 4 Select Short or Long by operating the trackball 5 Press the ACQ ENTER key 6 Press the MENU key to close the menu 3 5 Displaying Navigation Data Navigation data can be displayed at the screen bottom if this radar receives navigation input in IEC 1162 format Navigation data include Position in latitude and longitude or Loran C time difference Range bearing and time to go to both waypoint selected on the navigator and the cursor Speed If the navigation input includes destination data waypoint position is denoted on the radar display by a dashed ring To turn navigation data on or off Press the F1 key if its function is set for DISP DATA default setting or select DATA DISP on the menu 0 125NM HDG 234 54 TRAIL 25 38 30min art ZOOM AUTO MT P TD EBL PI VRM M is not displayed on 345 6 R 0 048NM e d 23 0 R 13 5 R 0 142NM 0 100NM e ype ra ar OWN SHIP
52. mous with quality and reliability For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for innova tive and dependable marine electronics equip ment This dedication to excellence is furthered by our extensive global network of agents and dealers Your radar is designed and constructed to meet the rigorous demands of the marine environ ment However no machine can perform its intended function unless properly operated and maintained Please carefully read and follow the recommended procedures for operation and maintenance We would appreciate hearing from you the end user about whether we are achieving our pur poses Thank you for considering and purchasing FURUNO equipment Note In this manual N type means Nether lands specification radar Features Your radar has a large variety of functions all contained in a remarkably small cabinet The main features of the model FR 7062 are Traditional FURUNO reliability and qual ity in a compact lightweight and low cost radar Durable brushless antenna motor On screen alphanumeric readout of all op erational information Standard features include EBL Electronic Bearing Line VRM Variable Range Marker Guard Alarm Display Off Center and Echo Trail Watchman feature periodically transmits the radar to check for radar targets which may have entered the alarm zone Ship s position in latitude and longitude a
53. nd Loran C TDs range and bearing to a waypoint speed heading and course can be shown in the bottom text area Requires a navigation aid which can output such data in IEC 1162 format Zoom feature provided Auto Plotter ARP 10 option acquires and tracks up to 10 targets and is installed in the display unit Cursor position data TLL can be output to a plotter option TABLE OF CONTENTS V 3 2 Index Lines uertit Perna 3 1 3 3 Suppressing Radar Interference 3 2 MENU TREE vii 3 4 Selecting Pulsewidth 3 2 3 5 Displaying Navigation Data 3 3 SYSTEM CONFIGURATION viii SG Hehe Tales 3 4 3 7 Guard Alarm cete 3 4 1 PRINCIPLE OF OPERATION 3 8 Watchman 4 5 lt 3 6 1 1 What is Radar n 1 1 3 9 OTHER MENU Description 3 7 1 2 How Ships Determined Position 3 10 Function Keys sess 3 8 Before 1 1 3 11 Adjusting Brilliance of Markers 3 8 1 3 How Radar Determines Range 1 1 3 12 Suppressing Second Trace Echoes 3 8 1 4 How Radar Determines Bearing 1 1 3 13 Suppressing Noise 3 8 1 5 Radar Wave Speed and Antenna 3 14 Outputting Target Position 3 8 Rotation 1 1 315 Tuning the Rec
54. nner as normal targets Figure 2 5 shows the appearance of rain clutter on the dis play Adjusting A C RAIN When rain clutter masks echoes adjust the A C RAIN control This control splits up these unwanted echoes into a speckled pattern mak ing recognition of solid targets easier Appearance of rain clutter Figure 2 5 Effect of A C RAIN A C RAIN control adjusted rain clutter suppressed Note In addition to reducing clutter the A C RAIN control can be used in fine weather to clarify the picture when navi gating in confined waters However with the circuit activated the receiver is less sensitive Therefore turn off the circuit when its function is not required Automatic adjustments of A C SEA and A C RAIN Push the A C SEA A C AUTO control A C AUTO appears at the bottom left hand cor ner of the display when the A C AUTO circuit is on You can fine tune by adjusting the A C SEA A C RAIN and GAIN controls 2 5 2 11 Selecting the Presentation Mode This radar provides four presentation modes head up course up north up and true motion Press the MODE key With heading sensor connection the display and the display mode indication at the top left hand corner of the display change in the sequence of HU RM Head up CU RM Course up NU RM North up and NU TM True Motion when the MODE key is pressed If there is no heading sensor connection the display mode is al
55. previous one Therefore if one knows the di rection in which the signal is sent out one knows the direction from which the echo must return 1 5 Radar Wave Speed and Antenna Rotation Speed Note that the speed of the radar waves out to the target and back again as echoes is extremely fast compared to the speed of rotation of the antenna By the time radar echoes have returned to the scanner the amount of scanner rotation after initial transmission of the radar pulse is extremely small 1 6 The Radar Display The range and bearing of a target are displayed on what is called a Plan Position Indicator PPI This display is essentially a polar diagram with the transmitting ship s position at the center Images of target echoes are received and dis played at their relative bearings and at their distance from the PPI center With a continuous display of the images of tar gets the motion of the transmitting ship is also displayed 1 1 1 2 Targets Heading marker Range and bearing of a target relative to own ship are readable on the PPI Own ship radar in center A Bird s eye view of situation B Radar picture of A Figure 1 1 How radar works 2 BASIC OPERATION 2 1 Control Description Turns power on Press together with STBY TX key to turn power off Alternates between stand by and transmit STBY NAV data and ARPA data can be displayed individually or
56. s scanner unit Replace them if heavily and bolts for easy removal in corroded future Scanner Check for dirt and cracks on Do not use plastic solvent radiator radiator surface Thick dirt should acetone for cleaning If you be wiped off with soft cloth need to remove ice from scanner dampened with fresh water Ifa unit use a wooden hammer or crack is found apply a slight plastic head hammer Crack on amount of sealing compound or the unit may cause water adhesive as a temporary ingress causing serious remedy then call for repair damages to internal circuits 6 months Display unit Check for tight connection and If corroded contact your dealer to 1 year connectors for replacement 5 1 5 3 Troubleshooting Table 5 2 contains simple troubleshooting pro cedures which you can follow to try to restore normal operation If you cannot restore normal operation do not attempt to check inside any unit of the radar system Any repair work is best left to a qualified technician If Table 5 2 Troubleshooting table But Then you pressed the POWER key to turn on the radar the control panel does not light try adjusting the control panel back lighting on the OTHERS menu battery may have discharged check fuse in power cable nothing appears on the display or display contrast is poor try adjusting the brilliance characters are distorted req
57. s au tomatically tuned everytime the radar is switched to Tx and the indication TUNING appears during tuning The tuning bar at the top right hand corner of the display shows tuning condition Generally the longer the tuning bar the better the tuning condition however the length of the bar changes with number of radar echoes range and other factors Current tuning method is shown above the tuning bar as either AUTO or MANUAL For how to tune the receiver manually see 9 Tune on page 3 7 Note Automatic tuning may not work properly if own ship s radar receives the radar wave of another ship s radar If this is the case the radar will be out of tune Press the STBY TX key twice to retune 4 FALSE ECHOES Occasionally false echoes appear on the screen at positions where there is no target In some cases the effects can be reduced or eliminated The operator should familiarize himself or her self with the appearance and effects of these false echoes so as not to confuse them with echoes from legitimate contacts 4 1 Multiple Echoes Multiple echoes occur when a short range strong echo is received from a ship bridge or breakwater A second a third or more echoes may be observed on the display at double triple or other multiples of the actual range of the tar get as shown in Figure 4 1 Multiple reflection echoes can be reduced and often removed by decreasing the sensitivity or proper
58. s the SHIFT ZOOM key again key to off center display 2 18 Zoom The zoom feature allows you to double the size of the area between your vessel and any loca tion within the current range to take a closer look at an area of interest 1 Select location with the cursor 2 Press and hold down the SHIFT ZOOM key about two seconds ZOOM appears at the top right corner when the zoom function is on Cursor D Place cursor Press F1 to zoom where desired Figure 2 14 Zoom function Note Zoom is cancelled when range or presentation mode is changed Cancelling zoom Press the SHIFT ZOOM key again 2 9 3 ADVANCED OPERATION 3 1 Basic Menu Operation The menu mostly contains less often used func tions which once preset do not require regular adjustment To open or close the menu press the MENU key You can select items on the menu with the trackball The complete menu appears at begining of this manual 1 Press the MENU key to display the main menu Sel by T ball amp press RINGS INDEX DISP INT LINE DATA REJECT Change bril ARP 10 OTHER from 3 to max MENU MENU Figure 3 1 Main menu 2 Operate the trackball to select the item For example select RINGS A message appears at the bottom of the menu window 3 Press the ACQ ENTER key to select set ting Each time this key is pressed the message changes For the RINGS menu the message
59. splay Operate the trackball to select Press the ACQ ENTER key Press the MENU key to close the menu Aon Display All Cancel Vector Ref Vector Length 5 History 6 CPA Set 7 TCPA Set 8 Auto ACQ ARP MENU Select item by T ball and press ENTER key Off Rel 3min 2 3nm 4min Off 6min 15sec 3min 0 5nm 5nm 1min 5min 30sec 15min 30sec 6min inm 6nm 2min 6min On 1min 1min 2nm 3min 12min Figure 6 1 ARP menu Target is being tracked but is not selected for data readout NM AUTO TARGET Target Full T 3 amp Mark HU RM us X Lost Target 2 nh 1 nu bilan 345 6 R 13 5 R 0 142NM VRM 0 048NM 0 100NM TRUE VECTOR RANGE 15 MIN CPA BEARING 42 5 T 5 36 SPEE 2 COURSE 287 8 T D 12 5 KT 12 35 Figure 6 2 ARP display Auto Acquisition Area Threatening target Target selected for data reading large square ARPA Data Area Deactivating the auto plotter 1 Press the MENU key 2 Open the ARP 10 MENU 3 Operate the trackball to select the 1 Dis play 4 Operate the trackball to select Off 5 Press the ACQ ENTER key 6 Press the MENU key to close the menu 6 4 Manual Acquisition Follow the steps below to manu
60. st visible on the screen If you set up for too little sensitivity weak echoes may be missed On the other hand excessive sensitivity yields too much background noise strong tar gets may be missed because of the poor con trast 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 2 9 Adjusting the A C SEA Control reducing sea clutter Echoes from waves can be troublesome cover ing the central part of the display with random signals known as sea clutter The higher the waves and the higher the antenna above the wa ter the further the clutter will extend Sea clut ter appears on the display as many small echoes which might affect radar performance See the left hand figure in Figure 2 4 When sea clut ter masks the picture adjust the A C SEA con trol to reduce the clutter How the A C SEA control works The A C SEA control reduces the amplifica tion of echoes at short ranges where clutter is the greatest and progressively increases am plification as the range increases so amplifica tion will be normal at those ranges where there is no sea clutter Adjusting the A C SEA control The proper setting of the A C SEA should be such that the clutter is broken up into small dots and small targets become distinguishable If the control is set too low targets will b
61. t BWR Loran time difference RMA gt GLC gt GTD Water depth DPT gt DBT gt DBK gt DBS Water temperature MTW gt MDA Time ZDA XTE RMB gt XTE gt APB 1 calculate by magnetic drift 7 Output Data 0183 1 5 2 0 RS 422 TLL target data and RSD 5 ENVIRONMENTAL CONDITION 1 Ambient Temperature Scanner Unit 25 C to 70 C Display Unit 15 C to 55 C 2 Relative Humidity 95 or less at 40 C 3 Waterproofing Scanner Unit IPX6 Display Unit Chassis not specified Panel IPX4 6 POWER SUPPLY amp POWER CONSUMPTION 1 Power Supply FR 7062 7112 12 24 32 VDC 10 8 to 41 6 VDC FR 7252 24 32 VDC 21 6 to 41 6 VDC 2 Voltage and Current FR 7062 N12AQ4rpm 12 VDC 7 5A 24VDC 3 8A 32VDC 2 8A N12A 48rpm 12 VDC 8 8A 24VDC 4 4A 32VDC 3 3A N13AQ4rpm 12VDC 10A 24VDC 5A 32VDC 3 8A N12AQ4rpm 12 VDC 8 3A 24VDC 4 2A 32VDC 3 1A N12A 48rpm 12 VDC 10A 24VDC 5A 32VDC 3 8A N13AQ4rpm 12 VDC 10 8A 24VDC 5 4A 32VDC 4 1A N12AQ4rpm 24VDC 5 2A 32VDC 3 9A N12A 48rpm 24VDC 5 8A 32VDC 4 4A N13AQ4rpm 24VDC 6 3A 32VDC 4 7A FR 7112 FR 7252 PS X 3 Power Consumption FR 7062 XN12A 24rpm 70 W to 90 W 100 kt XN12A 48rpm 85 W to 105 W 70 kt SP 3 FR 7112 FR 7252 09 7 DIMENSIONS AND MASS N13A 24rpm 80 W to 120 W 100 kt N12A 24rpm 85 W to 100 W 100 kt N12A 48rpm 95 W to 120 W 70 kt N13A 24rpm 90 W to
62. to measure the range and bearing between target A and target B in Figure 2 12 1 Operate the trackball to place the cursor on the center of target A 2 Press the EBL 1 key to turn on EBL 1 3 Press EBL OFFSET key EBLI s ori gin shifts to cursor location 4 Press the EBL 1 key 5 Operate the trackball to bisect target with EBL1 Check the EBL readout to find the bearing between target A and target 6 Press the VRM 1 key to turn on VRMI Operate the trackball to place the outside edge of VRMI on the inside edge of target Check the VRM readout to find the range between target and target To cancel press the EBL OFFSET key EBL1 VRM1 EBL1 70 0 R 4 5 NMI VRM1 bearing range Figure 2 12 Measuring the range and bearing between two targets by using the offset EBL 2 17 Shifting off centering the Picture Your vessel s position can be shifted up to 7596 of the range in use to view the situation around your vessel without changing the range or size of targets 1 Operate the trackball to set cursor where de sired 2 Press the SHIFT ZOOM key OFFCENTER appears at the top right cor ner of the display when the picture is shifted La Cursor amp Press SHIFT ZOOM CD Place cursor where desired Figure 2 13 Shifting the picture Cancelling shifted picture Pres
63. uest service the radar has warmed up and you pressed the STBY TX key to transmit the scanner does not rotate the problem may be in scanner unit Request service characters and indications are abnormal have a qualified technician check the set you have adjusted the gain with A C RAIN and A C SEA off neither noise nor targets appear indications and markers do check signal cable for damage neither indications nor markers appear noise and targets do check signal cable for damage the sweep radial line sweeping around the display is not synchronized with scanner rotation the problem may be in the scanner unit Request service there is no change in sensitivity request service a key is pressed nothing happens key may be faulty Request service 5 2 5 4 Self Test The self test facility checks the keyboard ROM and RAM for proper operation 1 Press the MENU key 2 Select OTHER MENU 3 Select 22 Self Test and press the ACQ ENTER key The following display appears Self Test Key test Press each key and check on screen indication lights 1 ARP 10 TEST L 1 OK 18590271xx l OK i 1SPEED OK 0 0 1COURSE OK 167 6 0000 FE DATA2 0000 1 1 e Program No 0359146 1xx ROM OK RAM OK
64. ways HU RM Note The radar begins operation with last selected display mode except Course up whenever the unit is turned on Note however that Head up is selected when Course up was the last used mode Head up The picture is oriented so the heading marker is at the top of the display This mode is useful for navigation in congested waters Course up The Course up mode shows ship s heading by the heading marker at the top of the display To get heading desired steer vessel in direction de sired and then show CU RM at the top left hand corner of the display North up North is at the top of the display and the head ing marker moves with ship s heading This mode is useful for determining ship s position and as a navigation monitor on a nautical chart The picture is stabilized against yaw of vessel thereby reducing smear of target echoes Bear ing signal is required from a heading sensor True motion True motion displays own ship and moving objects in their true motion Bearing signal and speed signal are required from heading sensor and speed sensor 2 12 Erasing the Heading Marker North Marker The heading marker or north marker available with gyrocompass connection may occasion 2 6 ally mask a target To view the target you can temporarily erase the heading marker and north marker by pressing and holding down the GAIN HM OFF control Release the con trol to re display the markers

Furuno FR-7062 Radar Detector User Manual

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