Gene Kearns wrote:
On Mon, 09 Jun 2008 09:28:39 +0200, Salomon Fringe penned the
following well considered thoughts to the readers of rec.boats:

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.

This one is pretty accurate and good to the depths you suggest. Very
low current draw.....
http://tinyurl.com/5wn4pr

The best info yet, was in your article:

"When sailing in shoal waters, soundings can be taken much quicker with
a pole or boat hook than with a lead.?

I give my wife or daughter the boat hook, when backing into a beach for
a Mediterranean mooring.