On Sat, 7 Jan 2006 11:28:12 -0800, "RST Engineering"
wrote:

Back in the '60s and early '70s I did some work with Impatt and Gunn diodes,
building a little self-detecting doppler for speed sensing. However, 35
years have passed and my notebooks for that stuff are somewhere in a dusty
archive along with my venerable sliderule.



Jim, take a look at www.shfmicro.com where you'll find 10GHz and
24GHz doppler modules for sale at very favourable prices. They would
certainly be very useful for what you have in mind.

Good luck..

Peter, G3PHO

UK Microwave Group

www.microwavers.org
www.g3pho.org.uk