ST2000 and TackTick NMEA 0183 Problem

[nssailor]

Thanks again for the great info, Chuck. I purchased the Raymarine NMEA-0183 Multiplexer. With any configuration, I give up a little something, but what I've decided on is:

Tacktick NMEA out to multiplexer in (Port 2)
Garmin outputs (Port 1 (sentences filtered to only those that originate from the Garmin) to multiplexer Port 1 , Port 2 to VHF)
Garmin input Port 1 from Tacktick NMEA (doubled up with one to multiplexer) and Garmin input port 2 from VHF output
Multiplexer output only to Autohelm

There is no loop connecting Garmin to TackTick and back to Garmin before going to Autohelm .... like there was before, so hopefully this would work.

It preserves the vital functions that I use most. The only thing I give up is route/waypoint information displayed on my Tacktick mast instruments and remotes, but it is displayed on my Garmin which is cockpit mounted, so shouldn't be a major issue.

Fingers crossed that this works out but will have to wait until May to find out!

Cheers from Nova Scotia