File:WAPA in Puerto Rico, TV channel 4, Radio 680 kilocycles, 10,000 watts - from, The Radio Annual and Television Yearbook, 1955 (IA radioannua00radi) (page 698 crop).jpg - Wikimedia Commons
Interlochen Public Radio - Wikipedia
5-GHz radio image of Cygnus A (3C405).
AN/PRC-77 Portable Transceiver - Wikipedia
File:WAPA radio advertisement (1949).jpg - Wikipedia
AN/PRC-117 - Wikipedia
Radio galaxy - Wikipedia
File:KY-57 VINSON manpack with PR-77 radio - National Cryptologic Museum - DSC08031.JPG - Wikimedia Commons
Sirius Satellite Radio - Wikipedia
File:Polskie radio logo.png - Wikipedia
File:Vintage Novelty Transistor Radio - AC-Delco Wood Framed Wall Radio, Model PR-200M, Tatung Company, Made In Taiwan, Circa 1983 (14867536913).jpg - Wikimedia Commons
File:Arecibo radio telescope observatory Puerto Rico - panoramio (2).jpg - Wikipedia
Pirate radio - Wikipedia
NPR - Wikipedia
Arecibo Telescope - Wikipedia
