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