KGMS

KGMS (940 AM) is a radio station broadcasting a Christian talk and teaching format. It is licensed to Tucson, Arizona. The station is owned by Robert and Luann Wilkins, through licensee Tucson Christian Radio, Inc. National religious leaders heard on KGMS include David Jeremiah, John MacArthur, Chuck Swindoll, Charles Stanley and Alistair Begg. It is part of the Wilkins Radio Network.

By day, KGMS is powered at 1,000 watts. To reduce interference to other stations on 940 AM, a clear channel frequency, KGMS reduces power to 250 watts at night. It uses a directional antenna with a two-tower array. Programming is simulcast on KNXN 1470 AM in Sierra Vista, Arizona, to provide coverage southeast of Tucson.

Early years
KGMS began as a request for a construction permit, filed in 1958 for a new station on 940 kHz in Tucson. Prior to beginning operations, it was assigned the call letters KMBO in 1960 and KOBY in 1961. The station signed on the air in August 10, 1963. Its call sign was KHOS and it aired a full service, country music format. KHOS was an affiliate of the ABC Information Radio Network.

On September 1, 1977, it switched to Adult Contemporary music and changed its call letters to KMGX. In July 1981, it flipped to a talk radio format as KNST. The KNST call letters and format were moved to 790 AM in April 1993. Meanwhile, 940 AM changed its call letters to KWFM. The next year the call sign was changed to KCEE, and the station became KGMS in 2001.

Expanded Band assignment
On March 17, 1997, the Federal Communications Commission (FCC) announced that 88 stations had been given permission to move to newly available "Expanded Band" transmitting frequencies, ranging from 1610 to 1700 kHz. KCEE was authorized to move from 940 kHz to 1630 kHz.

However, KCEE never procured the construction permit needed to implement the authorization. The expanded band station was never built. It remains on 940 AM.