WHO (AM)
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WHO is a commercial AM radio station in Des Moines, Iowa, United States. The station is owned by iHeartMedia and carries a conservative news/talk radio format, with studios on Grand Avenue in Des Moines.
Ronald Reagan working for WHO in the mid-1930s
Call sign
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In broadcasting and radio communications, a call sign is a unique identifier for a transmitter station. A call sign can be formally assigned by a government agency, informally adopted by individuals or organizations, or even cryptographically encoded to disguise a station's identity.
Russian nuclear icebreaker Arktika with call sign UKTY
All U.S. states issue call sign license plates upon request for motor vehicles owned by amateur radio operators. This road vehicle is from California.
Department of Commerce callbook, 1919