fandango

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

zz28zz

Could it be the GPS receiver antenna?

Scarab28

Possibly light

fandango

Thanks for replies. Hoping someone has hooked these up before. I know if start guessing on wires.....the wrong wire will fry unit.

Padraig

Call Gaffric????

Padraig

Dean Ferry

check to see if this helps,:

https://www.riverdavesplace.com/foru...ut-100.149113/

zz28zz

You could disconnect single white wire, power up and see if GPS reception degrades.

Griff

Gaffrig Precision Instruments is now Livorsi

fandango

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