KRDU

KRDU (1130 kHz) is a commercial AM radio station licensed to Dinuba, California, and serving the Fresno-Visalia radio market. It airs a Christian talk and teaching radio format and is owned by iHeartMedia, Inc. KRDU is regarded as America's first commercial Christian radio station. The studios and offices are located on Shaw Avenue in North Fresno.

KRDU
CityDinuba, California
Broadcast areaFresno-Visalia, California
Frequency1130 kHz
BrandingKRDU 1130am
Slogan"Fresno's Christian Radio"
Programming
FormatChristian Talk and Teaching
Ownership
OwneriHeartMedia, Inc.
(Capstar TX LLC)
Sister stationsKALZ, KBOS, KCBL, KRZR, KFSO, KHGE, KFBT, KSOF
History
First air date1947
Call sign meaningK Radio DinUba (original owner)
Technical information
Facility ID54559
ClassB
Power5,000 watts days
6,200 watts nights
Transmitter coordinates36°29′3″N 119°15′57″W
Links
WebcastListen Live
Websitehttps://krdu1130.iheart.com/

KRDU broadcasts at 5,000 watts by day and is a rare AM station that increases its power at night to 6,200 watts. It uses a directional antenna at all times. The transmitter towers are off Road 136 in Cutler, California.[1] As of 2019, KRDU is the radio home of the Fresno Grizzlies, a Pacific Coast League Triple A minor league baseball team connected with the Washington Nationals.

History

KRDU signed on the air on December 26, 1948, at 1130 kilocycles.[2] It was owned by the Radio Dinuba Company with studios on L Street. The call sign represents Radio DinUba. At first it was a daytimer, required to go off the air at night and powered at only 250 watts. In 1949, it moved to 1240 kHz with 250 watts full-time.

In 1961, it moved back to 1130 kHz with full-time authorization, powered at 1,000 watts around the clock.[3] In 1975, it added an FM station, KLTA (now KSOF, still co-owned with KRDU).

In the 1990s, the power was increased to its current 5,000 watts days and 6,200 watts nights. In 1999, KRDU was acquired by AMFM, Inc.[4] AMFM was acquired by Clear Channel Communications, which later changed its name to iHeartMedia.

gollark: My ideal protocol would probably be something like IRC but with globally shared, cryptographically validated identity, modern things like the Discord guild/channel model, reactions, serverside history, and file upload, and standardized "bouncer" capabilities.
gollark: Oh, *that*.
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gollark: Unfortunately this is also horribly difficult to implement and possibly not very necessary.
gollark: Matrix is somewhat cool in that instead of, like IRC/XMPP, just relaying events as they happen from some central trusted servers, it is a protocol for synchronizing an eventually consistent chatroom between everyone everywhere.

References
  1. Radio-Locator.com/KRDU
  2. Broadcasting Yearbook 1949 page 78
  3. Broadcasting Yearbook 1977 page C-19
  4. Broadcasting & Cable Yearbook 2000 page D-42


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