The MDSR software performs all of the demodulation, filtering (both radio frequency and audio frequency), signal enhancement (equalization and binaural presentation). Uses include every common amateur modulation: morse code, single sideband modulation, frequency modulation, amplitude modulation, and a variety of digital modes such as radioteletype, slow-scan television, and packet radio. Amateurs also experiment with new modulation methods: for instance, the DREAM open-source project decodes the COFDM technique used by Digital Radio Mondiale and compatible stations.

Downloadable from

Advertisements – schedules updated almost every day. – schedules sorted by Time, Frequency and a CSV format version. – HFCC seasonal schedules, most recent at the bottom. – Yahoo group for a combined listing of the above – HFCC Online enquiry facility – Text schedules for English language SW transmissions – Global Frequency Database – Online display with maps and long path – Database of LW, MW and Tropical bands stations – Database of short wave broadcasts – Search for shortwave broadcasters in the HFCC database – DSWCI Domestic Broadcasting Survey – DSWCI Tropical Bands Monitor