Page 3 - SAFETY INSTRUCTIONS; Keep the compass safe distance.; CAUTION; Do not open the equipment.; WARNING
SAFETY INSTRUCTIONS Position should always be checkedagainst other sources to confirmreliability. GPS position and velocity accuracies arecontrolled by the U.S. Department ofDefense. Turn off the equipment whenever youfeel it is abnormal. Continued use may damage the equipment. The useable temperatu...
Page 4 - A Word to GR-80 Owners
1 TABLE OF CONTENTS FOREWORD ............................................. 1 A Word to GR-80 Owners ....................... 1Features ................................................... 1 SPECIFICATIONS .................................... 2SYSTEM CONFIGURATION .................. 3HOW DGPS WORKS ......
Page 5 - SPECIFICATIONS; Performance
2 SPECIFICATIONS Performance Frequency range 283.5 – 325.0 kHz Freq. resolution 0.5 kHz Receiver Single superhetero-dyne IF frequency 455 kHz Input sensitivity 6 dB µ V (MSK rate 100 bps, 10 -3 bit error) Data Processing Modulation MSK Data coding Dual Costas loop MSK rate 25, 50, 100, 200 bps(auto ...
Page 6 - SYSTEM CONFIGURATION
3 SYSTEM CONFIGURATION FURUNO DGPS BEACON RECEIVER GR-80 MENU FREQ STN ▼ ▲ ENT RESET LOCK RECTIFIER PR-62 Ship's Mains 12/24 VDC 100/110/200/220 VAC GPS Navigator (GPS Plotter) RECEIVER ANTENNACOUPLER GPS Antenna Unit Whip Antenna
Page 7 - Figure 1 DGPS concept; HOW DGPS WORKS
4 Figure 1 DGPS concept HOW DGPS WORKS Position accuracy for civil users of GPS islimited to about 50 meters. This limitationexists not only because of the US Depart-ment of Defense's intentional downgradingof the accuracy but also because of signalattenuation and clock error inherent in bothGPS sat...
Page 8 - INSTALLATION; Antenna Installation; • Install the antenna vertically and as high; Figure 2 Attachment of antenna coupler; Figure 3 How to tape the antenna cable
5 INSTALLATION Antenna Installation Siting considerations • Install the antenna vertically and as high and far away from surrounding obstaclesas possible. • Separate the antenna at least three meters from any transmitter antennas which areradiating at significant RF power levels. Mounting the antenn...
Page 9 - Receiver Unit Installation; Siting considerations; Figure 4 GR-80 receiver unit; Connections; Figure 5 Connections on rear
6 Receiver Unit Installation Siting considerations The receiver can be mounted on a tabletop,on the overhead or in a panel (requires op-tional flush mount kit). When selecting amounting location keep the following pointsin mind; • Locate the receiver away from rain and water splash. • K e e p t h e ...
Page 10 - Ground; Interface Format; Disconnect cables at the rear of the re-
7 Pin arrangement on the DATA connector isshown below. For connection at the GPSnavigator, see its manual. For RS-232C Pin# Signal Description 1 TXD Output data 2 NC No connection 3 RXD Input data 4 NC No connection 5 RX-H * Nav Data (current loop) 6 RX-C * Nav Data (current loop) 7 FG Ground * For ...
Page 11 - Initial Settings
8 Initial Settings After installing the equipment, enter baudrate of connected GPS receiver, output databyte format and your area as follows: Default settings Baud rate: 4800 bps Output data byte format: 6 of 8Your area: Area 1 (USA,Canada, Ber-muda, Brazil) 1. Press [MENU] and [RESET] together. Rel...
Page 12 - Turning the Power On/Off; OPERATION; Controls and Indications; Figure 8 Front panel of GR-80
9 Turning the Power On/Off Power to the equipment may be turned on/off at the mains switchboard. When thepower is applied or the CPU is reset ([RE-SET] key pressed) the equipment proceedsas follows: FURUNO GR-80 INITIALIZE STATION LOAD 238.5 kHz Appears forone sec. InitializingRAM Loading references...
Page 13 - Menu Operation; Normal operation menu; Option mode menu
10 Menu Operation Most functions are carried out throughmenus and there are two sets of menus, nor-mal operation menu and option mode menu. Normal operation menu The normal operation menu mostly containsitems used in everyday operations such asdimmer and contrast level adjustment. The[MENU] key open...
Page 14 - Automatic mode conventions
11 Adjusting Brilliance, Contrast The brilliance and contrast of the LCD canbe adjusted as follows: 1. Press the [MENU] key. 2. Press [ ▲ ] or [ ▼ ] to display "SET DIM- MER?" 3. Press the [ENT] key. 4. Press [ ▲ ] or [ ▼ ] to select level desired. Four levels are available. 5. Press the [EN...
Page 15 - Displaying Position; Figure 10 Sample latitude and; Station Scan Time Out; Figure 11 Sample signal strength; Remote Control; ] to select REMOTE ON
12 Displaying Position 1. Press the [MENU] key. 2. Press [ ▲ ] or [ ▼ ] to display "MONITOR L/L?" 3. Press the [ENT] key. Position in latitude and longitude appears. L/L ERROR ap-pears when there is no L/L data. 35 ° 45N 135 ° 25E Figure 10 Sample latitude and longitude display 4. Press the ...
Page 16 - TROUBLESHOOTING; Troubleshooting Table
13 TROUBLESHOOTING Troubleshooting Table The table which follows will help the user with diagnosing operational problems. m o t p m y S y d e m e R a t a d t u p t u o o N . y l p p u s r e w o p k c e h C • . r o t c e n n o c A T A D k c e h C • . t n e m n g i s s a t r o p t s o h k c e h C • a ...
Page 17 - Diagnostic Test; To conduct the diagnostic test; Figure 12 Sequence of diagnostic test; Remarks on the diagnostic test; • When the equipment finds RAM or ROM
14 Diagnostic Test The diagnostic test checks the circuit boardand keys for proper operation. To conduct the diagnostic test; 1. Press [RESET] while pressing and hold- ing down [MENU]. Release [MENU]when the display shows "SELF TEST?" 2. Press the [ENT] key to start the test. The test procee...
Page 18 - DGPS REFERENCE STATIONS
15 DGPS REFERENCE STATIONS Area 1: USA, Canada, Bermuda (0 = Auto) Location Name in GR-80 Freq. (kHz) Latitude Longitude MSK Rate Country ALEXANDRIA ALEXANDRIA 305 N38.45 W77.07 100 VA,USA ANNETTE ISLAND ANNETTE.IS 323 N55.04 W131.36 100 AK,USA APPLETON APPLETON 300 N45.47 W121.19 100 WA,USA ARANSAS...
Page 24 - EQUIPMENT LISTS; Standard equipment
21 EQUIPMENT LISTS Standard equipment e m a N e p y T . o N e d o C y t Q s k r a m e R t i n U r e v i e c e R 0 8 - R G 1 r e l p u o C a n n e t n A 8 - R G 1 p m a e r p h t i W s l a i r e t a M n o i t a l l a t s n I 1 0 6 1 0 - 8 0 P C 0 3 0 - 6 9 3 - 4 0 0 t e s 1 1 0 6 1 0 - 8 0 P C 0 0 9 ...
Page 25 - CONNECTABLE FURUNO EQUIPMENT
22 CONNECTABLE FURUNO EQUIPMENT l e d o M ? e l b a t c e n n o C e t o m e R ? l o r t n o C . c e p S S R 0 5 - P G S E Y r e h g i h d n a 3 . r e V M O R O N 2 2 4 2 M 0 5 - P G S E Y O N C 2 3 2 3 M 0 5 - P G S E Y O N C 2 3 2 0 7 - P G O N – – 2 M 0 7 - P G S E Y r e h g i h d n a 3 . r e V M ...
Page 26 - Procedure; The screen of the data cable is grounded effectively.
23 REMEDY FOR THE INTERFERENCE TOA VHF RADIOTELEPHONE If a VHF radiotelephone is interfered by signal from the data cable between GPS receiverand the GR-80, follow the procedure shown below. Procedure 1. The screen of the data cable is grounded effectively. GR-80 DATA Connector DATA Cable Shield Sig...