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Member
Posts: 265
Location: Lincolnshire, IL | Does a glassed in transducer offer less sensitivity than a transom mount transducer? I have "heard" approximately 30% less. Any of you Lowrance/Electronics gurus want to weigh in on this? Thanks. Wade |
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Member
Posts: 129
| Wade,
I'd say 10-15% reduction in sensitivity when you shoot thru the hull. I'm sure it depends if the install is done right. IMO the benefits gained by having a properly installed shoot-thru TD (better cruising/hi-speed returns, can't break off TD on ice, rocks ,or logs) outweigh the slight loss of sensitivity.
Tim |
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Member
Posts: 11
Location: Chisago City MN | Wade,
I did some testing. Installed both with a transducer switch. In less than 20 of water and harder bottom there is not a lot of difference. In deeper water and soft bottom it is night and day difference. I did this 15 years age and have not seen much difference with the new more powerful units. If you are on the edge of a mud flat on Mille Lacs and have both shoot thru and a transom mount you could easily answer your own question. Other benefits include less chance to wash out the signal when going in reverse. Shoot thrus are glues in inline with the center of the boat. An exterior transducer will read at high speeds is installed correctly. |
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| I have a glassed in ducer on a 621 running a 38 HD, on my prior boat I had an X18 transom mount I believe they are the same power running 200hz as far as RMS watts go. I get a much better picture with the glassed in ducer and can mark fish at at over 40mph I had them set up the same way, with the transom mount the screen would get really cluttered at around 22 mph not so with the glass, I fish Erie mostly in shallow and deep water and would never go back to the transom mount. |
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