Re: [mowbot] A Lurker Says, "Hello".

Thomas A Maier (tmaier+ nospam at
Tue, 24 Sep 1996 08:09:26 -0400 (EDT)

> Ah, but it doesn't actually matter here where the edge of the pulse
> lies, just how strong the echo is. So this shouldn't be an issue.

This is just my point. You have to isolate the transmitter from the
receiver in such an application so that you ONLY get the echo. The echo
is typically much lower in amplitude than the initial *bang* and unless
you can be sure what you are listening to is the echo and NOT the
initial *bang* you can't tell what is going on. This isn't impossible,
but it also isn't easy.