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re: Just bought my first boat...preowned

Posted on 5/27/13 at 11:38 pm to
Posted by cdaniel76
Covington, LA
Member since Feb 2008
19699 posts
Posted on 5/27/13 at 11:38 pm to
quote:

You are losing bottom when running because the boat is traveling faster than the transducer can receive the signal.


This should NOT be happening.

Most likely either cavitation bubbles from the hull are passing the transducer or it's not set at the correct angle/height and is creating an air gap, itself.
Posted by Chris4x4gill2
North Alabama
Member since Nov 2008
3092 posts
Posted on 5/28/13 at 7:06 am to
Transom is my preferred mounting point. How close is it to the motor? It needs to be at least a foot / 18 inches from the foot of the motor to get out of turbulance. If there is any air bubbles around it it will give a bad reading. Also needs to be parallel to the water.

Google the make and model of the depth finder to find an owners manual. It will have install instructions and you can see if it is mounted correctly.
Posted by fishfighter
RIP
Member since Apr 2008
40026 posts
Posted on 5/28/13 at 8:36 am to
quote:

Most likely either cavitation bubbles from the hull are passing the transducer or it's not set at the correct angle/height and is creating an air gap, itself.


THIS! or hull placement.
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