Marine Electronics Forum

transducer help

Old 04-10-2018, 07:00 AM
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Default transducer help

bought a new 23' boat (CC). has a 7610xsv installed with one of the "cheaper" garmin transom mount sid vu... ducers (I belive it is 300kw) . previous owner was not much of a fisherman. boat will b used in the northeast fluking in 3' of water to searching for bft/inshore pelagics in 30 fthms. im looking for best bang for the buck. I do some wreck fishing in 30-120'. Im deciding between a transom mount v thru hull. gt/ct 51 m (whats the difference?) v b 75/175 h? thx for any input.
Old 04-10-2018, 10:32 AM
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You want two different transducers for what you are doing. You want a wide cone for the bluefin and pelagics. You want a narrow cone for bottom fishing. The GT series transducers contain a clearview element for using downscan. The CV transducers use the two sidescan elements to create the clearview image. The GT's were discontinued for a while, and are still hard to find. The B75 is a 600W transducer and the B175 is a 1kw transducer. The GT51 would be a good all purpose transducer that I would pick if bft/pelagics were your main game and you wanted sidescan. The B175H is what I would choose if bottom fishing were your main game. It would be pretty narrow for use trolling offshore. You could easily miss fish off to the sides. The B75H works like the B175H, but it's a little less narrow, and would work well for bottom fishing at those depths, but it's only a 600w and not as sensitive as the 1kw, it's also a little cheaper. The B175HW would be the best transducer period for trolling offshore, and it would work for bottom fishing in your shallowest depths, but it is even wider than the GT51.

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