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in hull v. thru hull transducers

Old 05-04-2003, 12:28 PM
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Default in hull v. thru hull transducers

interested in what the guys running center console (20-30 foot) boats are using. i know the smaller boats will probably have transom mounted transducers but more interested in those using thru and in hull. the question is: is thru hull more common on a displacement hull then on a planing hull? for those using in hull (i understand you loose a little bit of sound going through the hull) what is the max depth you are getting reads with 200 and with 50 khz. does it make more sense to put in a thru hull.

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Old 05-05-2003, 03:38 AM
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Default in hull v. thru hull transducers

I'm going to assume that the transducer is for a FF/Sounder.

The signal strength lose with the in-hull style is relative only with regards to the depth of water you will be fishing. How deep will you be fishing?

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Old 05-05-2003, 05:47 AM
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Default in hull v. thru hull transducers

probably no more than 2-300 feet.
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Old 05-05-2003, 01:01 PM
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Default in hull v. thru hull transducers

I have one glued in the hull and can read the bottom at 1000'. Not very strong, but I can read it. Out to 600' it is rock solid..
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Old 05-05-2003, 06:46 PM
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Default in hull v. thru hull transducers

Thru hull installs are trickier in planning boats due to drag. Mine is glassed in as flush as possible, I can read perfectly at any speed the boat can run, phenominal picture. Its really the way the FFs were designed to work best, especially if you use a high end tranny. My boat is 28 Hydra Sports CC. D2
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Old 05-05-2003, 09:46 PM
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Default in hull v. thru hull transducers

2-300'

Go for the in-hull, absolutely.

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Old 05-06-2003, 07:15 AM
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Default in hull v. thru hull transducers

I have the thru-hull Airmar M260 (1kW unit). The tranducer sits in a bath of mineral oil in a housing that is 4200'd to the inside of the hull. At WOT my boat does ~47 mph and I have never lost bottom with this setup. As a matter of fact, I can see fish gills asperating in 600' of water

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