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Depth sounder calibration
"RW Salnick" wrote in message ... Lew Hodgett brought forth on stone tablets: wrote: I wonder what would the best way to calibrate a depth sounder. The only thing that counts is how much water is under the keel. Lew Absolutely true Lew. And yet, I leave mine set to show the depth of water between the transducer and the sea bed. This is a built in safety margin which I really like to have. Keeps the occasional rock, stump, etc on the bottom from having a close encounter with my keel. Or a deep trough from a passing Bayliner from dropping me to the bottom. bob s/v Eolian Seattle 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. |
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