ACE was the monthly bulletin of the Association of Clandestine Enthusiasts, a shortwave radio club dedicated to listening to pirate, clandestine and spy number stations
radio-portal.org is a bilingual search engine for ham radio operators, shortwave listeners and people interested in worldwide wireless communication and broadcasting, terrestrial or via satellite.
Popular Communications is the #1 magazine for short-wave listening, broadcast-band DXing, scanning, public service, emergency communications, monitoring clandestine and pirate stations, and more..