William's Workbench

I’ve wanted to build one of these for years and never got around to it. Here are some links.

http://hem.passagen.se/communication/airscanner.html

http://www.tricountyi.net/~randerse/superrgn.htm

http://www.geocities.com/hagtronics/2_article.html

http://polonai.se/lmx2306/index.html