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Gaffrig GPS Wiring help

Old 07-15-2019, 09:58 PM
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Default Gaffrig GPS Wiring help

Does anyone know where the single white wire attaches too. This is an older Gaffrig Precision Instruments GPS Speedometer with Recall. Wiring diagram would greatly help.

Thanks in advance.

Ed
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Old 07-15-2019, 10:06 PM
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Could it be the GPS receiver antenna?
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Old 07-15-2019, 10:39 PM
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Possibly light
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Old 07-16-2019, 10:53 AM
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Thanks for replies. Hoping someone has hooked these up before. I know if start guessing on wires.....the wrong wire will fry unit.
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Old 07-16-2019, 01:17 PM
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Call Gaffric????

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Old 07-16-2019, 02:03 PM
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check to see if this helps,:

https://www.riverdavesplace.com/foru...ut-100.149113/
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Old 07-16-2019, 04:30 PM
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You could disconnect single white wire, power up and see if GPS reception degrades.
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Old 07-17-2019, 12:18 AM
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Originally Posted by Padraig View Post
Call Gaffric????

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Gaffrig Precision Instruments is now Livorsi
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Old 07-17-2019, 10:39 AM
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Thanks to all. I have pretty much determined that the single white wire is the signal wire. Can either be landed on the antenna circuit or the NMEA 2000 GPS circuit for signal

Ed
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