Main Page
From HFUnderground
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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! | 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! | ||
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'''[[:Category:Main topics]]''':Top level category of articles and images. | '''[[:Category:Main topics]]''':Top level category of articles and images. | ||
Latest revision as of 12:56, 15 October 2026
Welcome to HFUnderground.com, aka the HFU. This site is dedicated to documenting longwave, mediumwave, and shortwave stations, including broadcasters, utility/military stations, pirate radio and spy numbers stations.
Be sure to visit the HF Underground Message Board for the latest reception reports and news about pirate and other shortwave radio 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!
- New To This? - Start Here
- Pirate radio station email addresses
- Pirate QSL Collection
- Pirate Radio New Listener Guide and FAQ
- Spy Numbers Stations
- Soviet/Russian Strategic Communication/Warfare Units
- Cuban Intelligence Radio Stations/Operations
- Pescadores
- Radio Hobby Related Software
- Amateur (ham) radio
- DXing
- Pirate radio stations
- Pirate radio frequencies
- Category:People
- Signal Identification
- The Signal Identification Wiki
- Shortwave Broadcast Stations
- Private European Shortwave Stations
- Shortwave jammers
- Shortwave Utility Stations
- Fixed/Mobile MF/HF Allocations
- MF/HF Aircraft Bands Aeronautical Radio
- Major World Air Route Area (MWARA) Frequencies
- Mediumwave Broadcast Stations
- Mediumwave Utility Stations
- Longwave Broadcast Stations
- Longwave Utility Stations
- MF/HF Marine Radio
- MF/HF maritime weather transmissions
- MF/HF maritime fax transmissions
- VHF and UHF Services - including land mobile radio, PMR, etc.
- Business Radio Service - Industrial/Business Radio Pool
- CB radio, Freebanding and the 11 meter band
- Community Audio Distribution Service (CADS) and Wireless Public Address System (WPAS) (27 MHz Church Radio)
- Remote Control - R/C Services Worldwide
- 26-28 MHz Data Link Networks and Pagers
- Miscellaneous
- RTL-SDR
- KiwiSDR
- Technical Topics
- NIST Digital Archives
- Part 15 Beacons
- High Frequency Beacon
- Radio Related Blogs
- LORAN
- Radio Related Memes
- AI on HF
Category:Main topics:Top level category of articles and images.
Internet Relay Chat
Many pirate and other radio enthusiasts hang out on the HFUnderground Discord.
You can use this link to Join the Discord
Afterwards, just go directly to Discord
