I bought my 1993 Hunter 23.5 used two years ago. It came with an AutoHelm BIDATA device for measuring depth and speed. It's connected to a in-hull transducer (no hole in the boat). The depth measurement works fine, but the display is worn out and very hard to read which is driving my desire to upgrade it. The speed function does not currently work.
I'm looking for suggestions for a new display to connect to the existing transducer or a whole new unit+transducer to install. The best I've found so far is the Raymarine i40 BiData instrument. My existing unit has a SeaTalk connector so I expect I could reuse that. I'm not sure if I could reuse the existing transducer since I can't see model info on it to check. This article makes me think it's possible.
Also wondering if the speed measurement on the original unit ever worked because I have an in-hull transducer, not a thru-hull transducer. (Seems like it was wired to - see pictures.) Measuring speed isn't important enough to be to go through putting a hole in the boat so if it's not possible to measure speed via an in-hull transducer, I'm guessing the best move is to just buy the Raymarine i40 depth instrument that just measures depth. All advice and suggestions appreciated! Evan
I'm looking for suggestions for a new display to connect to the existing transducer or a whole new unit+transducer to install. The best I've found so far is the Raymarine i40 BiData instrument. My existing unit has a SeaTalk connector so I expect I could reuse that. I'm not sure if I could reuse the existing transducer since I can't see model info on it to check. This article makes me think it's possible.
Also wondering if the speed measurement on the original unit ever worked because I have an in-hull transducer, not a thru-hull transducer. (Seems like it was wired to - see pictures.) Measuring speed isn't important enough to be to go through putting a hole in the boat so if it's not possible to measure speed via an in-hull transducer, I'm guessing the best move is to just buy the Raymarine i40 depth instrument that just measures depth. All advice and suggestions appreciated! Evan