Join Date: Jan 2007
Thanked 0 Times in 0 Posts
Rep Power: 9
- I've got a set of Furuno instruments - they look great, too bad they aren't going on my boat (I need them for work). Oh well, they are a bit big for my boat anyway.
Furuno really do use NMEA2000 for everything. Even actual depth/speed transducer and win sensor sends data in NMEA 2000, so it's not compatible with standard transducers (the usual airmar gamut). I do think that's a bit unfortunate, and NMEA 2000 cable is quite a bit thicker than a regular transducer cable, making it difficult to string through enclosed spaces or mast.
Naturally that's only a concern for a small boat - if space is no issue, that won't be a problem.
- Finally got a copy of highly secret NMEA 2000 documentation. As someone who deals with network protocols for a living, my (personal but professional) opinion is that it is a quite poorly defined protocol, both in technical terms, in data organization and in precision of it's specification. The latter worries me most. I guess NMEA makes up for poorly designed spec by a very "rigorous" (i.e. narrowly defined) set of tests that any manufacturer has to pass (and, conveniently, they charge a lot of money for testing). So perhaps poor specification is no mistake after all. Anyway, just a thought.