Autohelm 4000

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Apr 11, 2009
46
Hunter 31 Thunder Bay
Tying to wire my GPS to the radio interface. Could anyone provide insight as to which color wire would be NMEA in and out?

Dave
 
Apr 27, 2010
970
Beneteau 352 Hull #276 Ontario
Not sure what the GPS has to do with the Autohelm 4000??

There is no GPS connection to the Autohelm 4000 that I know of??
 

Joe

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Jun 1, 2004
8,323
Catalina 27 Mission Bay, San Diego
On my Garmin GPS 76 handheld.... the four prong data/power cable has the following: red-power, black-ground, brown-data out, white-data in....

However... If I were you I would do a google search usining your specific gps model..requesting a communications wiring diagram.......'cause the comm wires designations may not be standard from make to make, model to model.
 

jviss

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Feb 5, 2004
7,090
Tartan 3800 20 Westport, MA
Radio Interface

Not sure what the GPS has to do with the Autohelm 4000??

There is no GPS connection to the Autohelm 4000 that I know of??
Autohelm/Raytheon/Raymarine made a 'radio interface' for connecting a gps or other navigational signal to the AH4000. I vaguely recall it used just a couple of NMEA sentences, and converted the NMEA to the AH4000 proprietary external track error input. They likewise had a windvane input, and windvane, so it would steer by the wind instead of internal compass. I think the wind input and radio input on the unit were the same.

Sorry I can't provide any more detail, perhaps the OP can.
 
Dec 19, 2006
5,832
Hunter 36 Punta Gorda
GPS

Are we talking for a DSC VHF and if so the wires come from the radio to GPS,nothing is being sais about DSC and pretty sure only DSC would have the option to connect to the GPS.
I did not hook up mine but the GPS manual should tell you which wire to connect,not to the autohelm.
newer auto hooks to a computer that has connections for the wind machine and compass and wind vane
Nick
 
Jun 6, 2006
6,990
currently boatless wishing Harrington Harbor North, MD
it is a two wire hook up NMEA out from the auto helm to the MNEA in on the radio and vica versa with the NMEA in from the auto helm to the radio NMEA out (possibly also called a ground or signal ground. The owners manual will have the colors in it.
 

jviss

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Feb 5, 2004
7,090
Tartan 3800 20 Westport, MA
"Radio" in this context refers to radio navigation, e.g, Loran, GPS, etc., not voice radio communications such as VHF radiotelephone.
 
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