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Transom Mount Transducer on Step Hull boat?

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Transom Mount Transducer on Step Hull boat?

Old 11-29-2017, 08:28 PM
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Default Transom Mount Transducer on Step Hull boat?

I was just reviewing the Garmin Transducer guide and it states that transom mount transducers will not work on boats with step hulls.

transducer_selection_guide.pdf

I have an 04 31' Yellowfin w/ a step hull. Why would the step hull in the mid section of the boat bother a transom mount transducer?

I have a thru hull transducer near the step and it does not track very well while running. I don't really want to replace this ducer or add another thru hull ducer.
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Old 11-29-2017, 08:46 PM
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Stepped hulls at speed can sometimes produce a good deal of disturbed water...that flows back to the transom ..and thus could hinder sonar returns on a transom mounted ducer.


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Last edited by semperfifishing; 11-29-2017 at 09:07 PM.
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Old 11-30-2017, 05:27 AM
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Thanks Travis.

Stepped hull boats will create a lot of turbulence for all transducers so, what would be the best transducer types for these boats? The in-hull transducers because they are filled with water?

What transducers do others have with stepped hull boats and can it track bottom and mark fish when running offshore?
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Old 11-30-2017, 05:51 AM
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This is the #1 downfall of a stepped hull boat. The transducer has to go FORWARD of the steps so that it will read. When heading offshore, as soon as the transducer/steps come out of the water (every wave) it will lose bottom. There is no solution for this as any transducer behind the steps won't read at all because of all the air/disturbed water the steps cause.

Originally Posted by scottv720 View Post
Thanks Travis.

Stepped hull boats will create a lot of turbulence for all transducers so, what would be the best transducer types for these boats? The in-hull transducers because they are filled with water?

What transducers do others have with stepped hull boats and can it track bottom and mark fish when running offshore?
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Old 11-30-2017, 08:29 AM
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Towed array.
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Old 11-30-2017, 08:32 AM
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Originally Posted by scottv720 View Post
Thanks Travis.

Stepped hull boats will create a lot of turbulence for all transducers so, what would be the best transducer types for these boats? The in-hull transducers because they are filled with water?

What transducers do others have with stepped hull boats and can it track bottom and mark fish when running offshore?
What model of transducer are you now using?..and what Sonar/MFD?

.

Last edited by semperfifishing; 11-30-2017 at 09:36 AM.
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Old 11-30-2017, 09:31 AM
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I currently have legacy Raymarine sonar with a thru hull transducer that does not track bottom when I am running offshore.

I am considering upgrading to a GPSMAP 7600xsv w/ GT51-TM transom mount transducer or, the equivalent Simrad EVO3 MFD and transducer.

I am interested in what experience (good and bad) others with stepped hull boats are having with transom mount, thru hulls, in hull, pocket mount, etc... transducers?
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