Harry's Homebrew Homepage - Extensive collection of useful receiver, antenna and peripheral homebrew projects, for ham radio and other DX hobbyists. sm0vpo.8m.com
JPS Communications, Inc. - JPS Communications is a manufacturer of DSP equipment for military, shortwave and ham radio applications. www.jps.com
Quantics W9GR Digital Signal Processors - Information about the DSP-3 which removes noise and other unwanted interference from voice and data communications signals. www.w9gr.com
WD8DAS Sync Page - Offers information about synchronous detection and retrofit synchronous detectors in kit and finished form. www.qsl.net/wd8das/sync.html
