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Depth sounder calibration
In article et,
Lew Hodgett wrote: wrote: I agreed with the fact that what counts is how much water is under the keel However, I have been, for years, using the depth to validate my position on the chart. Conversely, with today's electronics I could say 100 feet + 6 (draft) should read 106 feet on the chart. This way I could validate my position with the radar and GPS. Trying to use chart data, some of it at least 100 years old, to validate depth, to validate position? You have got to be kidding. If you find yourself in less than 20 ft of water, time for a lead line, IMHO. At that point, screw the instruments. Lew I sail in a very shallow lake where walking on water is not a miracle. Some people buy fish finders so they can see the rocks. Have fun |
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