Radar jamming and deception Association of Old Crows Culture jamming Electronic warfare Eastern Bloc information dissemination Mobile phone jammer Microphone blocker Radio jamming in China Radio jamming in Korea References External links extensive site on radio jamming Article on recent jammers with audio samples Audio sample of jamming (c1982) at start of BBC World service (Russian) programme includes jamming station morse ID Ethiopia jams VOA (2010) Ultra Fast Folloow Jammer Description (2007) R. Pleikys, D. Vildžiūnas. Empire of Noise (video). Aadu Jogiaas: Disturbing soviet transmissions in August 1991. Portable jammer is illegal. Words: Matt Bolton, Photographs: Matt Munro The Tallinn Cables, A Glimpse Into Tallainn's Secret History of Espionage Lonely Planet Magazine, December 2011 Electronic countermeasures Radio technology Denial-of-service attacks Censorship of broadcasting