[TG] [TG11] ST5000+. NO DATA error.

[davenz]

I have an Grey ST5000+ autopilot (AutoHelm Series) which displays NO DATA, but I think my NMEA input data is OK.

There was a Furuno GP31 wired to the ST5000+ but I don’t know if it worked, and due the GPS rollover I ,unfortunately, threw it away. I assume it used to work, the previous owner may not have used it. This is in a small 2002 launch, well maintained and dry.

I now have iSailor, sending AP commands via wifi to a (TeamSurv NMEATools) wifi/nmea mux, then by wire to the ST5000+. iSailor NMEA logs and voltage testing indicate the NMEA output is working, and I have tried reversing the NMEA wires.

When I put the ST5000+ in to TRACK mode it always give ‘no data’ error. There is no Seatalk connection to the ST5000+. The Autohelm part of this works perfectly.

Is there some ST5000+ setting I am missing, maybe it is ignoring the NMEA input? or is there another way I can test the data input to the ST5000+?

Thanks for any help.