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From HFUnderground
Welcome to HFUnderground.com. This site is dedicated to documenting longwave, mediumwave, and shortwave stations, including broadcasters, utility/military stations, pirate radio and spy numbers stations.
Everyone who is a radio enthusiast is encouraged to add information to the site. Just become a registered user, and you can start to contribute!
- Pirate radio stations
- Spy numbers stations
- Shortwave Broadcast Stations
- Shortwave Utility Stations
- Mediumwave Broadcast Stations
- Longwave Broadcast Stations
- Miscellaneous
- Technical Topics
