KYSF

KYSF
Bonanza, Oregon;
Broadcast area	Klamath Falls-Altamont
Frequency	97.5 MHz
Branding	Air1
Programming
Format	Christian worship
Affiliations	Air1
Ownership
Owner	Educational Media Foundation
History
First air date	1999
Former call signs	KAQX (1996–1999)
Former frequencies	102.9 MHz (1999–2015)
Technical information
Licensing authority	FCC
Facility ID	3462
Class	C3
ERP	460 watts directional
HAAT	642 meters (2106 feet)
Transmitter coordinates	42°05′48″N 121°37′57″W
Links
Public license information	Public file; LMS;
Webcast	Listen Live
Website	https://www.air1.com air1.com]

KYSF (97.5 FM, "Air1") is a radio station licensed to Bonanza, Oregon, United States. The station is owned by Educational Media Foundation.

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KYSF broadcasts a Christian Worship music format to the greater Klamath Falls-Altamont, Oregon area.^[3] From 2009 to early 2012, almost all programming except syndicated programming heard on KYSF was from Dial Global's Hits NOW! satellite format. Syndicated programming on KYSF included Rick Dees' Weekly Top 40, Kidd Kraddick in the Morning and Baka Boyz Hip-Hop Mastermix.

This station received its original construction permit from the FCC on August 9, 1996.^[4] The new station was assigned the call letters KAQX by the FCC on October 25, 1996.^[1] KAQX received its license to cover from the FCC on February 5, 1999.^[5]

The station was assigned the current call sign by the FCC on June 17, 1999.^[1]

On January 5, 2012, KYSF changed its format from contemporary hits to EMF's K-Love contemporary Christian format.

On February 11, 2014, KYSF moved from 102.9 FM to 97.5 FM. The station was licensed to operate at 97.5 FM on January 13, 2015. By 2018, KYSF was broadcasting K-Love's sister station feed, Air 1 which flipped formats to Christian Worship in January 2019.