"Salomon Fringe" wrote in message
. ..
Hi all, I want to upgrade my echo sounder but I find that all of the units
I am looking at give up at around half a meter - unlike my 20 years old
unit that I wanted to replace (I need zero depth performance for inland
waterways). Does anybody know of a unit/brand/type that would work for me?
I'm not interested in fish, just displaying depth.

TIA,

S

I'm guessing they are all that way. Mine doesn't like it much less than 3
feet. They have to program it to wait a little bit for the return so it
ignores the initial ping. Even at the speed of sound in the water that
distance is covered pretty fast.