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INTRODUCTION 

The Clipper 

GPS 

Repeater is supplied with 

10 

metres of cable. 

The unit will repeat the data sent by any GPS receiver set up to 
send NMEA 

0183 

output at 

4800 

baud. 

INSTALLING THE  DISPLAY 

Select  a  convenient  position for  the display  on  a  panel or bulk­

head.  The site must  be flat  and  the  cavity 

behind 

the panel 

must  remain  dry at  all times.  (The  cable entry  is  deliberately 

not  sealed  to  ensure  adequate ventilation. This  prevents 

misting of the  display}. 

Cut  a  hole  in  the  panel 67mm high  and  87mm  wide.  Bring  the 

wiring  th rough  the hole in  the  panel  and  pass  the 

10 

metre 

cable through  the hole. 

Unscrew  and  remove  the  two  wing  nuts  from  the  rear of ·the 

instrument  and remove the  stainless  steel  clamping bracket. 

Fit  the 

"O" 

ring seal  into  the groove in the panel  mounting face 

of the  instrument.  Ensure  that it is  correctly  lying  in its  groove 

before  fitting  the  instrument  to  the  panel,  which  provides the 
watertight  seal for the display. 

F!t  the instrument into the panel,  fit  the stainless  clamp over 
the  studs,  fit  and  tighten the two  wing  nuts finger tight only. 

It  is important  that  the 0-ring  rubber seal  makes  good  contact 

with  the  panel  to  prevent  water  getting behind  the unit  and 
entering the cavity  behind  the  panel. 

It  is  good  practice  to  run  the  cables  vertically  downwards from 

the  unit,  even if they  later have  to  rise  to  connect to the 

vessel's supplies.  Doing so  prevents any  water  that  might  get 

onto  the cables from  running back  along  the  cables  and  into 

the  unit. 

Summary of Contents for GPS Repeater

Page 1: ...Speed ov r ground t _ t 1 I l f f L LI I Track L0lPlP fl GPS REPEATER ...

Page 2: ...TION 1 INSTALl JNG THE DISPL AY 1 INSTALLATION DIAGRAMS 2 3 GETTING OPERATIONAL 4 USING THE REPEATER 5 UStNG THE ROADWAY DISPLAY 6 ROADWAY DISPLAYS 7 TECHNICAL INFORMATION 8 TROUBLE SHOOTING Inside back cover back cover ...

Page 3: ...rom the rear of the instrument and remove the stainless steel clamping bracket Fit the O ring seal into the groove in the panel mounting face of the instrument Ensure that it is correctly lying in its groove before fitting the instrument to the panel which provides the watertight seal for the display F t the instrument into the panel fit the stainless clamp over the studs fit and tighten the two w...

Page 4: ...GPS RECEIVER NMEA OUTPUT or If it exists it s usually labelled NMEA OUTPUT ve or NMEA OUTPUT REF If not then the reference is internally connected to ground and can be ignored Figure 1 2 ...

Page 5: ... L IPPEr GPS J b ve 12Volt SUPPLY Figure 2 3 ve ...

Page 6: ...to send NMEA version 2 0 or later version at 4800 Baud When the GPS Repeater is powered on the words Clipper GPS appear momentarily on the screen Note that the words are shown in a mixture of Upper case capitals and lower case characters This is because the numerical display is also used to display text The International Seven bar Substitution Character Set ISBSCS usually shortened to ISCS is used...

Page 7: ...waypoint is selected on the receiver this is usually all the data available to the repeater Select a waypoint a destination on the GPS receiver and press STEER The repeater will show the Speed over the ground SOG screen This screen shows the road the speed over the ground the course made good track and distance and bearing to the waypoint A second press of STEER shows the cross track error CTE scr...

Page 8: ...iver If the cross track CTE is being displayed the cross track error includes a Left L or Right r indication which indicates the direction to steer to rejoin the desired track between departure and destination waypoints The roadway display always shows the best direction to turn even if the vessel is moving away from the destination waypoint and see above If the vessel is going away from the desti...

Page 9: ...ring to destination fllrl Steer left Steer right Track 6 off bearing to destination f J27 S s Steer left Steer right Track 9 off bearing to destination fllrl Steer left Steer right Track 12 off bearing to destination Steer left Steer right Track 15 off bearing to destination S s f J27 7 ...

Page 10: ...osition POSN is requested and none is available from the GPS No G PS POSN is displayed If no Cross track Error or Speed over Ground information is available appropriate messages are shown The Repeater always displays magnetic bearings using the magnetic offset sent by the GPS receiver If true bearings are wanted on the Repeater it is necessary to set the GPS Receiver to Magnetic and set the magnet...

Page 11: ...ceiver version 2 0 or higher at 4800 Baud Repeater lNot getting NMEA I Check GPS Receiver is reports NO from the GPS 1on and has acquired GPS Signal Receiver lock Check ccnnections Repeater No Waypoint Select waypoint shows No selected on GPS l GPS DEST Receiver i or No GPS I SOG or No I GPS GTE I Repeater Receiver still Wait for acquisition shows No acquiring position I GPS POSN Information on Th...

Page 12: ...rent on the Repeater nautical miles etc The Receiver is not set to magnetic Left and Right Difference in symbols are convention Some reversed receivers show I direction TO desired track others show your position RELATIVE to desired track Set the Receiver to read Magnetic bearings If true readings are desired set Receiver to magnetic and set zero magnetic deviation Remember the I convention in use ...

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