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Old 17-08-2013, 13:34   #1
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Help with Standard Horizon GX1600 connecting to Garmn 740S

Brothers,

Can anyone advise which Garmin 740S wire colors match with the GX 1600 VHF radio color wires for the NMEA 0183 connection? They call it a standard, yet both companies describe the functions differently, + or -, in or out, transmit or receive, etc...

I was going to post photos, but I'm sure you get the idea.

I want my friends boat to respond to my call query by his MMSI number, and his position to be able to show up on my chart plotter.

Thanks to all
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Old 19-08-2013, 15:06   #2
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I can post diagrams from both the manuals if that would help figure it out.
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Old 21-08-2013, 00:30   #3
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Ok, here are the wiring diagrams from the respective manuals. Can anyone with wiring experience figure what connects to what?


Thanks


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Old 21-08-2013, 06:19   #4
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Re: Help with Standard Horizon GX1600 connecting to Garmn 740S

Joe, Connect the two blue wires. You want NMEA out from the GPS to NMEA in on the radio. You maya have to connect the MNEA grounds, not the power grounds, or may not try it both ways with the ground off at first. The Garmin shows the power and NMEA grounds the same. Chuck
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Old 21-08-2013, 07:14   #5
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Quote:
Originally Posted by Waterwayguy View Post
Joe, Connect the two blue wires. You want NMEA out from the GPS to NMEA in on the radio. You maya have to connect the MNEA grounds, not the power grounds, or may not try it both ways with the ground off at first. The Garmin shows the power and NMEA grounds the same. Chuck
Ok cool, but I also want NMEA out from the radio to the chart plotter. This enables my friends boats to be plotted on my Garmin when I query their coordinates digitally from my radio to theirs. That is what I am stuck on.

Thanks for the reply.
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Old 21-08-2013, 08:03   #6
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Re: Help with Standard Horizon GX1600 connecting to Garmn 740S

MNEA out on the radio goes, gray, to NMEA in, brown, on the plotter. Be sure port 1 is enabled on the plotter in the set up menu. Chuck
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Old 22-08-2013, 09:55   #7
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Thanks Chuck. I will try this when I get to the boat.
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Old 22-08-2013, 13:43   #8
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Re: Help with Standard Horizon GX1600 connecting to Garmn 740S

Garmin nmea signal:
1) (nmea out)
2) gnd.

b.
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