On Fri, 31 Dec 2004 08:32:11 -0600, "Rex B"
wrote:

Don,
If you don't mind going to the trouble, I'd like to read that. You can
email it to me (remove the obvious).

You'll find it at http://www.goldengate.net/~dforeman/hartmann/

As for the sound level, the Bark Stopper unit I bought supposedly puts out
120 db. Doesn't seem to phase this hound, at a range of ~10-ft.

That doesn't sound promising -- but the whistle may produce
considerably more than 120 dB.