[TG11] B744VL transducer question

[Tom - Raymarine - Moderator]

Hello jgj252,

That's a good question. Not all Airmar transducers with the same model name are the same, and in some cases there are big compatibility differences internally. The model name really only describes the housing and gives some idea of the performance, it doesn't go much farther than that.

If you have a look at the Airmar Cross Reference (http://www.airmartechnology.com/xref.html), you'll see that there are 20 different B744VL models listed, and different wiring diagrams and acoustic element types for many of them.

It's somewhat safer using a fishfinder depth transducer with an instrument display than the other way round, but in this instance the Speed component will be your key problem: instrument transducers use a 3-wire speed signal, whereas fishfinder transducers a 2-wire speed. You can't convert between the two, so you'd see no speed data on the Bidata. You need to use a correct instrument transducer.

Regards,
Tom