Thread: Depth sounder calibration
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Lew Hodgett Lew Hodgett is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 348
Default Depth sounder calibration
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
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