Join Date: Sep 2004
Location: Hilton Head Island
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Re: NMEA 2K Network Problems (Garmin GMI 10/Airmar DST800/GPS 19X (NMEA0183))
you need to ground the power cable. put a meter on the wire going into the network to verify.
I would start here as JSARONSON suggests. Can you get a hold of Maretron's N2K Meter
to test the physical cabling?
If not, if you have a DVM you should test as follows:
Maretron Support Knowledge Base :: How do I check the health of my N2K cabling before powering my network?
s/v Little Wing