Anritsu RA77OUA Instruction Manual Download | Manualshive

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Summary of Contents for RA77OUA

Page 1: ...INSTRUCTION MANUAL FOR W R I N E RADAR TYPE RA77OUA ANRITSU CORPORATIOF REV 2 1 FEB 92...

Page 2: ...using an i n s u l a t e d conductor DURING MAINTENANCE OF THE SCANNER UNIT THE ANTENNA MUST NOT BE ROTATED Never start maintenance work on t h e scanner unit u n t i l you a r e s u r e t h a t t h...

Page 3: ...2 13 Switching t h e Display Modes 2 14 The second EBL and VRM 2 15 The f l o a t i n g f u n c t i o n of the second EBL and VRM 2 16 Setup Modes 2 16 1 E n t e r i n g Setup Mode 2 16 2 Return t o...

Page 4: ...1 4 I n t e r f a c e S i g n a l s 6 1 5 A l l o w a b l e S a f e Distance from Magnetic Compass 6 2 S t a n d a r d Equipment General System Diagram 24W137212 Scanner Unit E x t e r n a l V i e w...

Page 5: ...r Suppression and Auto Gain Control AUTO I n addition t o having conventional sea c l u t t e r suppression t h i s radar has a newly developed automatic sea c l u t t e r suppressor has an automatic...

Page 6: ...angle v a r i e s i n about 6 degree increments An e x t e r n a l buzzer can be e a s i l y i n s t a l l e d i n addition t o b u i l t i n alarm buzzer h Plotting p i c t u r e screen The tracking...

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Page 8: ...h t n e s s l e v e l of echo s i g n a l s r e f l e c t e d from t a r g e t s with high r e f l e c t i o n c o e f f i c i e n t s For long range observations increase t h e gain by turning t h e...

Page 9: ...r g e t s e a s i l y v i s i b l e Turn t h e c o n t r o l knob clockwise t o decrease sea c l u t t e r If t h e c o n t r o l knob is turned too far echo s i g n a l from important t a r g e t s m...

Page 10: ...t o manual gain control mode The indication shown below w i l l be displayed and t h e auto sea clutter suppression mode w i l l remain Indicates t h e auto STC and manual g a i n control mode i s se...

Page 11: ...djust STC and gain f o r t h e b e s t p i c t u r e counterclockwise t o l e v e l 0 when t h e r e is no r a i n or snow In t h i s s t a t e t h e FTC function is i n e f f e c t i v e Always t u r...

Page 12: ...elease t h e function Press t h e ST key The s t r e t c h i n g function is s e t and This s t r e t c h i n g function is mainly used when echoes 2 0 Plotting Echo Track from Moving Targets Press t...

Page 13: ...ion i s used when t h e p i c t u r e i n an end of P r e s s the OFF C key The p i c t u r e center w i l l move t o R e j e c t i n g I n t e r f e r e n c e f r o m O t h e r Radars t h i s functio...

Page 14: ...eys a r e set t o these functions a t SETUP menu The numerical d a t a of t h e s e functions a r e displayed on t h e same p o s i t i o n a s navigation data I n t h i s case navigation data such as...

Page 15: ...2 SHF 3 AZIMUTH 4 VIDEO 5 5v 6 2 v 7 H T OK OK OK OK OK 5 0V OK 12 3V OK 300 V 2 DISPLAY PRESET functions Select a desired i t e m with t h e range up down keys and adjust with t h e c o n t r o l kno...

Page 16: ...a t i o n voltage is displayed a t CONTROL area 5 T I M I N G ADJUSTMENT t o t a r g e t t h e radar and e n t e r t h i s s e t u p mode t o a d j u s t t h e timing Then t u r n t h e c o n t r o l...

Page 17: ...ed to the radar the compass heading is displayed instead of the course data of navigational equipment When the Ship s Speed Course data from a navigational 4 Compass Heading are fed through the NMEA O...

Page 18: ...l i n e and a circle When a loran is used as t h e navigational equipment t h e dotted l i n e is not displayed on t h e screen Ship s heading or course information from a compass 2 18 C a u t i o n...

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Page 21: ...ably removed from a coastline may at times be displayed on the screen as if they are a coastline Fig 3 3 You must train yourself not to mistake such echoes for coastline Accordingly an echo signal ref...

Page 22: ...while the ghost appears at a range and bearilrg behind the funnel or the mast Fig 3 4 They are referred A large target at close range may at times appear Direct Reflection Path Reflection Path i Dire...

Page 23: ...short range for instance when your ship passes a larger ship the pulsed waves emitted from your radar will bounce back and forth between the two ships Fig 3 6 As a result a few equi distant echoes may...

Page 24: ...ed by Side Lobe Beams Echoes Produced by Targets at Lonq Ranges Due to the Duct Phenomenon Depending on the atmospheric conditions a radio wave duct may form above the sea surface In such cases radiow...

Page 25: ...be turned OFF For more s a f t y maintenance take of fuses on t h e d i s p l a y u n i t A f t e r the POWER SWITCH i s turned OFF high s t a t i c voltage may be retained i n t h e CRT high voltage...

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Page 29: ...zontal plane as the scanner unit radar pulses will be intercepted and it causes to produce a blind angle 3 To avoid formation of a blind angle in the bow direction install the scanner closer to the bo...

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Page 33: ...g h t sunspot u n t i l i t s diameter becomes n i l and coincides w i t h t h e sunspot center press t h e OPERATE key t o return t o t h e radar screen Select t h e 6 HEAD DIRECTION ADJUSTMENT by Pr...

Page 34: ...convenience of installation and maintenance Exposed cable must close ly follow surfaces of the ship s structural members or bulkheads and be secured at about 40 cm intervals by approved 5 17 a and b...

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Page 36: ...s Type 5 9 1 1 Compass S i g n a l 3 K Z M Gyro Compass UF I Compass Interface I Signaltype Signal SINICOS 10 bitserialData 12 bitserial Data SIN cos REF Clock Data Clock Data Level lTLLcvel TILLevel...

Page 37: ...port on the back panel of the display unit valid 1 Latitude Longitude SGPLLL 1234 56 N 12345 67 W CR LF 2 Speed Course 3 Waypoint Range Bearing true GP 123456 1234 56 N 12345 67 W 012 T 012 M Ol2 3 N...

Page 38: ...trouble with operating the radar and the radio equipment 1 Installation Place of Radar The display unit scanner unit and inter unit connection cable should be located apart from the main unit feeder...

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Page 40: ...e s s than 65 W Separate power supply options 100 110 220 Vac lo 50 60 Hz s i n g l e phase 2 Scanner Unit Antenna Type Center fed s l o t t e d a r r a y Number of revolutions approximately 24 rpm P...

Page 41: ...EBL2 i s s e l e c t a b l e a t SET UP mode Display Modes Heading Up nu Following display modes a r e s e l e c t a b l e a t SET UP mode Head Set HS North Up NU I Course Up cu The mark modes a r e a...

Page 42: ...e Safe Distance from Magnetic Compass For master compass Display U n i t 2 0 m Scanner Unit 2 0 m Display Unit 1 4 m Scanner Unit 1 4 m For s t e e r i n g compass 6 2 S t a n d a r d E q u i p m e n...

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