Unfotunately it appears that Electronic manufacturers have us by the balls. Even Airmar won't make something that will talk to more than one or two units. I just bought a Raymarine ST40 with airmar triducer but that is it... won't even send to the Raymarine ST60 as far as I can tell.
C/N: Marine electronics would probably do better to standardize instead of trying to bend us over the rail.
I raced on a boat with a full NKE suite today. Nice set-up, but the same numbers still show up.
