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Which echo sounder is good up to (almost) zero depth?
On Mon, 09 Jun 2008 19:50:06 -0400, RLM wrote:
On Mon, 09 Jun 2008 23:31:21 +0000, Short Wave Sportfishing wrote: 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. If the water's muddy and you can see the bottom that's the zero depth concept or just use the acronym ZDC. The sounder is the noise the hull makes scrapping in the mud. That's kind of my point. Zero depth implies no water. If there is no water, why do you need a depth finder? |
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