Alan -- I'd suggest the Digital Yacht AIT2000 Class B transceiver; list is $699.95. Along with that, if you want to go NMEA2000 you'll need a Raymarine E55053 SeaTalk2 to NMEA2000 adapter cable, and all the other NMEA2000 backbone cabling (terminators, tees, power tap, etc.); or you can just go NMEA0183 if you aren't already using your 0183 ports on the C80. If you need to interface your VHF for DSC, it might be a good idea to save the 0183 ports for that and do NMEA2000; then you'll have at least part of the backbone system in place for the future.
Or you could just feed the VHF from the NMEA0183 ports on the AIS transceiver; then you won't need to have the C80 on to get GPS data to the VHF, just power to the AIS (which you'll want on most of the time anyway). You'll also need a VHF whip for the AIS; or you can get a splitter and use your existing VHF antenna. Digital Yacht makes a splitter to go with the AIT2000; it's the SPL2000 and list is $369.95. If that's the route you're going to take, I'd recommend putting the VHF, AIS and splitter on the same breaker, so that one breaker will turn on everything you need to manage VHF/AIS. Then the C80 (along with the power for the NMEA2000 bus) could live on its own breaker for when you want it. I would have put the Raymarine AIS650 on the list, but you'd have to convert from SeaTalk2 to NMEA2000 to get to a backbone, then convert to SeaTalkNG to get into the AIS650; and it's a couple hundred bucks more list than the Digital Yacht. I can source gear for you at decent prices; let me know if you want to discuss further. -- Fred Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI On Sep 27, 2013, at 3:31 PM, Alan Bergen <alan-at-h...@comcast.net> wrote: > > Fred: > > I have a C80 MFD, ST 60+ instrument displays, Autohelm depthsounder and ST50 > tridata at the nav station. The C80 has NMEA 0183 and NMEA 2000 connections, > as well as an AIS connection. > > Alan
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