H

["Walter Lake" <wlake@xxxxxxxxx>]

If you want cheap go with the Peters stuff. If you want "ready to use" check
out Benoit 1.2 at

http://www.trusoft.netmegs.com/benoit.html

Go to the bottom of the web page ... the box on the right has 5 different
methods of estimation of H.

I don't think that a demo is available.

Best regards

Walter