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For the airport serving Hailey, Idaho, assigned the ICAO code KSUN, see Friedman Memorial Airport.
KSUN logo.jpg
City of license Phoenix, Arizona
Broadcast area Phoenix metropolitan area
Branding Radio Fiesta
Frequency 1400 kHz
Format Regional Mexican
Power 1,000 watts
Class C
Facility ID 21430
Transmitter coordinates 33°23′23.00″N 111°59′52.00″W / 33.3897222°N 111.9977778°W / 33.3897222; -111.9977778
Callsign meaning Valley of the SUN (a common nickname for the Phoenix area)
Former callsigns KONI, KXIV
Owner Marquez Communications, Inc.
(Fiesta Radio, Inc.)
Webcast Listen (requires RealPlayer or Winamp)
Website radiofiesta.net

KSUN (1400 AM) is a Spanish-language radio station broadcasting out of Phoenix, Arizona and serving the Phoenix metropolitan area. It is locally owned by the Marques brothers and operates a regional Mexican music format under the branding "Radio Fiesta." The station is also the Spanish-language play-by-play home of Arizona Diamondbacks baseball games and Phoenix Suns basketball games.


Through the mid-1980s KSUN was an English-language station under the call letters KONI and later KXIV and it was programmed with a middle of the road (MOR) music format. The station was co-owned by Ira Lavin and actor Dick Van Dyke (a Phoenix resident). Disc jockeys included George Scott, Jack Dey, Jim Hutton, Paul B. Mundt, and Jim Spero (who also served as program director).[1]

The station changed to its current Spanish-language format in 1987.[2]


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