Thread: Which echo sounder is good up to (almost) zero depth?
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Short Wave Sportfishing[_2_] Short Wave Sportfishing[_2_] is offline
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First recorded activity by BoatBanter: Mar 2008
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Default Which echo sounder is good up to (almost) zero depth?
On Mon, 09 Jun 2008 11:04:13 -0400, wrote:


In a sailboat, the transducer would be mounted in the hull, above the
level of the top of the keel, so you would have 4-10 feet (depending
on how deep a keel you have) of water even with the keel scraping
bottom. Sounders usually have a "keel offset" setting to compensate
and tell you how much depth remains after the keel height is
subtracted.

I understand that - I'm not clear on the whole zero depth concept.
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