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Anritsu RA725UA, Instruction Manual

The Anritsu RA725UA is a high-quality electronic device used for advanced testing and measurement applications. Ensure optimal performance by referring to the Instruction Manual. Download the manual for free from manualshive.com to access detailed information on using and troubleshooting the product effectively.

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RA725UA/RA726UA 

Marine Radar 

Instruction Manual 

4th 

Edition 

Communications 

Systems 

Division 

Anritsu Corporation 

Simrad 

P a r t  

Number 

8 5 5 - 1 0 6 5 3 7  

Summary of Contents for RA725UA

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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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Page 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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Page 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...

Page 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...

Page 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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Page 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...

Page 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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Page 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...

Page 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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Page 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...

Page 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...

Page 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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Page 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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