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Old 07 April 2015, 15:31   #1
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Lowrance fish finder, transducer?

Hi, I'm pretty much decided I am getting a Lawrence elite 9 Plotter/fish finder but struggling with which model.
I am not interested in fish, just wrecks and structures down to 50m, so looking at the down scan and track back models. I'm getting a bit stuck with the various types, but think it will be the 9 CHIRP, but which transducer will I need?
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Old 08 April 2015, 11:09   #2
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I would guess for diving that you want the medium or high freq ducer. You are not going to need the depth that the low freq affords (beyond diving depth), so it comes down to whether you want more detail (HF) or more of an area coverage (MF.) Personally, I'd tend towards high, but that's up to you. FWIW, I've never seen the CHIRP functions in action.

jky
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Old 08 April 2015, 11:57   #3
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Thanks for that, are you advising the 83/200 then?
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Old 09 April 2015, 11:25   #4
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Lower freq ducers are for deep penetration in sea water (down to 1000ft or more.) For diving depths (say 30m), 200KHz is fine. In truth, when crab fishing, 200KHz reached 300 feet pretty reliably.

[Sorry for the ft/meter mishmash.]

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