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Old 31 October 2010, 15:33   #1
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Connecting VHF to GPS

Hello, just helping my mate fit his HDS 5 plotter and LVR 250 VHF, all fitted and working fine but cant get the VHF to connect to the GPS?

Has any one fitted the above or can any one give any guidance on connecting VHF to GPS?

There are 4 coloured wires on GPS, yellow, orange, blue and green. There are 5 colours on VHF, the same 4 as GPS plus black.

Any help would be appreciated.
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Old 31 October 2010, 15:36   #2
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Quote:
Originally Posted by Dr Doof View Post
Hello, just helping my mate fit his HDS 5 plotter and LVR 250 VHF, all fitted and working fine but cant get the VHF to connect to the GPS?

Has any one fitted the above or can any one give any guidance on connecting VHF to GPS?

There are 4 coloured wires on GPS, yellow, orange, blue and green. There are 5 colours on VHF, the same 4 as GPS plus black.

Any help would be appreciated.
Do you have access to the manuals as the colours should correspond to nmea +&- etc...
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Old 31 October 2010, 16:12   #3
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Yes, have both manuals but when you connect as instructions it doesn't work.

Looked through the book to see if I have to enter a code or something for the connection to work but can't see anything.

Got the + going to - on each.
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Old 31 October 2010, 16:30   #4
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It's not necessarily a matter of connecting + to -. You should only need three wires. Usually the black or unsheathed wires are connected together as they are the -'ve or ground. You then need to connect the NMEA out or tx lead from the radio onto the NMEA in or rx on the plotter, and then likewise the vhf in or rx onto the plotter tx or out wire.
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Old 31 October 2010, 16:46   #5
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Got the unsheathed wires together.

The book says connect 4 wires which I've done but the VHF is still asking for manual input?

Colours of wires are yellow, orange, green and blue.

From VHF
Yellow to orange
Blue to green

From GPS
Orange to yellow
Green to blue
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Old 31 October 2010, 16:54   #6
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What colours do the manuals say for the following?:

VHF
NMEA In +
NMEA In -
NMEA Out +
NMEA Out -

GPS
NMEA In +
NMEA In -
NMEA Out +
NMEA Out -
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Old 31 October 2010, 17:24   #7
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Have you set the BAUD rate on the Lowrance to enable them to talk and listen to the NMEA sentaces at the right speed??#
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Old 31 October 2010, 17:26   #8
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VHF
NMEA In + yellow
NMEA In - green
NMEA Out + orange
NMEA Out - black

GPS
TX + yellow
TX - blue
RX + orange
RX - green
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Old 31 October 2010, 17:42   #9
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Ok, you need:

Yellow - Yellow
Orange - Orange
VHF Green - GPS Blue
VHF Black - GPS Green
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Old 31 October 2010, 19:08   #10
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That's how I've got it.....

VHF is displaying No GPS signal?

Going back out to have another look
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