I know this will vary from boat to boat but how successfully can you trim up the motor in order to get a better shot to the transom side of the boat? If you are scanning at low speed I would assume you can move it out of the way easily enough? I am also considering this but didn’t really want to buy another transducer and Y cable since I only have 1 head unit and don’t intend to change that any time soon.
I know this will vary from boat to boat but how successfully can you trim up the motor in order to get a better shot to the transom side of the boat? If you are scanning at low speed I would assume you can move it out of the way easily enough? I am also considering this but didn’t really want to buy another transducer and Y cable since I only have 1 head unit and don’t intend to change that any time soon.
Yes it’ll vary boat to boat. Sometimes it’s the boat itself that creates the most cavitation. Othertimes it is the motor, sometimes the motor is actually in the way. Sometimes people have things like strainers on their bilge intake that get in the way, or speed wheel, or kickers. All these things are increased with speed.
Also, you can run in reverse with two SI transducers and get a clear image vs when you have 1 your motor is blowing cavitation into the SI view.
Whether it is necessary or not is up to the user.
Having two does offer the most premium results.
Thanks Andy. That makes a lot of sense. I was out in two different boats last year and one had two transducers and the other only had one but they both seemed to work well. But we were only going forward.
FBRM – thanks for the perspective. I think for now I’ll have to just remember that the motor side may not be as clear. However I do think I can mount it in a decent spot and do intend to use it with the motor up while also running the bow mount. I’ll have to find some obvious structure and run by it both ways to see what is actually the case. I appreciate your feedback!
But we were only going forward.
My screenshot on the last page is in reverse.
Something to know when running backward (Backtrolling if you will)
Your depthfinder doesn’t know your going backward….So if you want to mark a waypoint on your starboard side going backward, you actually need to mark it on the port side 
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