background image

(2) 

Display 

The display 

unit can be mounted on a desk, 

a bulkhead or from the ceiling. Determine the best 

location by taking the navigational and shipboard operations into account as follows: 

Compass safe distance 

Scanner 
Display 

(1) When the operator looks up from the radar, she/he must 

be able to see the bow. 

(2) Water must not splash on the display when a nearby window or door is open. 
(3) 

The installation location must 

be 

well ventilated and 

fiee 

from 

vibration. 

(4) 

There must be sufficient clearance for servicing and inspection. 

(5) 

The location must be the 

minimum 

safe distance from the magnetic compass 

to 

avoid disturbing 

Master 

compass 

Steering compass 

2.0 m 

1.4 

2.0 m 

1.4 

the compass. 

(3) 

Rectifier (option) 

Install the rectifier in a 

dry well-ventilated location close to the display. 

B.4  Mounting Scanner 

(1) 

Bracket 

Use a bracket like the two designs shown below 

in which water cannot accumulate.

Do not use an edge that 

might trap water. 

100-mm 

diameter 

hole 

Notes: 

1. 

When the radar mast amounting bracket has a curvature of more than 2mm, repair it or use 

spacers. 

2. The mounting position should be such that the cable entrance faces the ship's 

stern. 

3.  The bracket thickness should be 

to 

12 

mm. 

4. Refer 

to the diagram of the external appearance in the supplied diagrams for the mounting  di- 

mensions. 

(2) 

Scanner 

Use the accessory nuts and bolts to mount the scanner 

as shown in the diagram below. 

41 

fixings

Содержание RA725UA

Страница 1: ...RA725UA RA726UA Marine Radar InstructionManual 4th Edition Communications Systems Division Anritsu Corporation Simrad P a r t Number 855 106537...

Страница 2: ...2ndEdition Jun 3 1993 3rdEdition July 5 1993 4th Edition Copyright 1993 ANRITSU CORPORATION All RightsReserved NoPan of thismanualmay bereproducedwithoutthe priorwritten permission of Anritsu Corpora...

Страница 3: ...ut your fingers intothe mouth to clear thethroat and windpipe of any obstructionlike the tongue orvomit Ifthere is no chestorabdomenmovement start artificialrespiration if thereisnopulse start cardiac...

Страница 4: ...ct ing the scanner unit 1 SetthedisplayPOWER switch and themain switchfor distributingpowertothe radar to OFF so that there isnodangerof the antennarotating duringrepairand inspection In addition befo...

Страница 5: ...ckthatthereis no blockagein the victim s mouth or throat Do this quickly at first and then proceedat about 12inflationsperminute Donot stopuntil medical help arrives W Cardiac MassageMethod As shownin...

Страница 6: ...dar functions are explainedin this operationmanualbutthe basic operations can be performed afterreading paragraphs 2 1 and 2 2 To better understand how theradarfunctions read APPENDIX C INTERPRETING R...

Страница 7: ...ation 2 4 4 SettingGuard Zone 2 45 SettingRange Rings 2 4 6 Adjusting SeaClutter Suppression STC 2 4 7 AdjustingRain and Snow Clutter Suppression FTC 2 4 8 AdjustingGAIN 2 4 9 ErasingHead Marker 2 4 1...

Страница 8: ...REPAIR 29 5 1 Abnormal Microcomputer 29 5 2 Self Diagnostic Inspection 30 5 3 Checking Voltages and Fuses 30 APPENDIX A SPECIFICATIONS 33 APPENDIX B INSTALLATION 37 APPENDIX C INTERPRETING RADAR IMAGE...

Страница 9: ...of amicrocom puter and image processing LSI and several newlydeveloped signal processing LSIs Referto APPENDIX A for detailed specifications This radar is composed of the following Standard and Option...

Страница 10: ...owingequipmentcan be connectedto theradar Fortheinterfaceinformation see Appendix B INSTALLATION Related Equipment LORAN GPS Buzzer Magnetic Compass Gyro CompassInterfaceUnit Radar SetupMode This rada...

Страница 11: ...ctions for the left line are ex plained in paragraph 2 4 The internal buzzer makes a short Pi sound when a key is pressed and the operation is accepted If misoperation is attempted the previous settin...

Страница 12: ...the name and functionsof each part X X indicates the relevant paragraph inthismanual Display Mode Your Ship Speed Heading direction Track 2 4 or Picture Hold 3 2 I Tuning Meter TK 15 SEC SPD 10 0 KT M...

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Страница 16: ...is pressed To return to the manual mode press the STCkey Select the one to use according to the situationasdescribedbelow AT1 Usethis mode when confirming the course in areas where strong radar echoes...

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Страница 35: ...e i s a chance of high residual voltage remaining in the equipment even after the power is turned off These voltages MUST be grounded or discharged before starting work on the equipment When inspectin...

Страница 36: ...ion CRTHV parts PCboards Connectors Boltsand scannermotor brushes Procedure Check that the scanner mounting b o l t s are tight and that there is no corrosion Open the scanner cover and check the tigh...

Страница 37: ...icrocomputer etc A When POWER FAILisdisplayed onthe screen This warning indicates that the radar internal 5 V power supply has momentarily fallen below 4 8 V If this happens the radar enters the Stand...

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Страница 41: ...96 NM RA726UA 11ranges Within 20 m Within 20 m Within 1 3 0 3 ftantenna 2 5 4 ftantenna 1 8 6 ftantenna Withinlargerof O 8 or 8 m 2 minutes scanner 25 to 55 C Display 15 to 55 C 35 C 95 RHmax Within...

Страница 42: ...s 450 or 380Hz 96NM Notes 1 RA725UA 2 RA726UA TR switchingmethod Noisefactor Centerfrequency IFbandwidth T u n i n g method Interconnectioncable circulator diodelimiter 5 5 dB MIC 6o LoGamP 15 MHz 0...

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Страница 44: ...rd composition Scanner unit Interconnection cable Display unit Accessories Spares 7 options Rectifier Rectifier Gyro interface unit Magnifier lense Master compass 2m 2 m RB704A RA725UA o r RB705A RA72...

Страница 45: ...APPENDIX B INSTALLATION This appendix describes how to install the radarand how to connect other equipment to the radar B l B 2 B 3 B 4 B 5 B 6 B 7 B 8 B 9 B 10 38 38 41 42 44 46 46 49 53 37 40...

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Страница 48: ...ossibleto avoidobstaclesin thebow directionbecauseof theshipconstruction install the scanneroffthe keel line or elevatethe position s o that a dip anglecan be taken Methodfor installingscanneroff keel...

Страница 49: ...oid disturbing Master compass Steeringcompass 2 0 m 1 4 m 2 0 m 1 4 m the compass 3 Rectifier option Install the rectifier in a drywell ventilatedlocation close to the display B 4 Mounting Scanner 1 B...

Страница 50: ...xingbolts RemovedPedestal 2 3 Fix the pedestalto the desktop using fourM8 bolts or eight 5 mm self tapping screws Fit the main unit into the pedestal and secureit with the two fixing bolts Notes 1 Ref...

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Страница 66: ...is delayed beyond the transmissionrepetitioncyclesothe echo appears in the next cycle These ducted echoes disappear when therangeis switched sothey can be recognized easily C 5 Radar Interference Whe...

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