I have a relatively complex and confusing B&G problem that (so far) the intertubes have been unable to help me with and I was hoping someone here can offer some insight. Bear with me, as the backstory will probably be too long to hold most of your attention.
The customer had an elderly B&G Hydra system on the boat that he wanted 'sort of' upgraded. We upgraded to the new h3000 cpu, new h3000 pilot display and new h3000 graphical display. We have also installed to new Garmin GPS units, 4208 and 4210. Kept in place were a couple old B&G cockpit displays just as repeaters and the ACP1 pilot cpu..
The only problem with everything so far is compass data. The boat has a B&G Super Halcyon 3 compass installed already (yes, he should upgrade, I understand that). Ok, says I, the halcyon 3 has NMEA output, this is a non-issue. Find an ancient manual for it, identify the NMEA output wire, make all my power and data connections and power up the system. Heading simply listed as off on the GFD and GPD. OK, maybe I'm in the wrong node. Try all applicable heading nodes (005, 015, 016, 018 and 096) with the same result. Hmmmm. Has the halcyon 3 just failed? No. The garmin (at the same time- presumably from the nmea out on the B&G cpu as I don't have any type of multiplexer installed) is displaying the heading data (not GPS, heading, actual mag heading) and a quick check of the NMEA status on the Garmin unit reveals that it is receiving all of the appropriate sentences from the compass.
So. Has anyone run into this issue with (maybe?) B&G Heading Data NOT bridging to fastnet? It is mind-numbing to me that a different manufacturer is picking up the data just fine, but, for whatever reason, the B&G displays WILL NOT recognize it.