I own a 14′ aluminum Lund fishing boat and recently mounted a new transducer for a fishfinder (Hummingbird 550). The instructions told me to mount it so that the transducer was essentially partly under the boat and partly above as the hull’s angle changes. I tested it out today on the lake and it reads just fine, however at higher speeds I get a small rooster tail behind me. Should I raise the transducer? To what level?
no your fine if water sprays up… my friend has a 997si unit and mounted it the same way that humminbird said and the same stuff happens but it doesn’t effect preformance so u should be fine
You might change the angle a little bit and it will help.
Sounds fine to me, I’m not sure I’d do much, you could try raising it, but that may decrease performance, if you can raise it with not losing bottom, no reason not to raise it up.
Take a strait edge, place on bottom of boat and make sure transducer is half below and half above the “hull line”.
That should give correct height.
If you still have a rooster you can wrap some electrical tape around the bracket where the roster comes from.
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