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