It is owned by Audacy, Inc. and airs an adult hits radio format branded as "97.1 Charlie FM."

[6] KPFM was owned by Broadcasters Oregon, Ltd., and was powered at 1,530 watts, a fraction of its current output.

KPAM was originally a daytimer, required to sign off at sunset; for the first several decades, the two stations simulcast their programming.

[8] In September of that year, KPAM-AM-FM changed to KCNR and KCNR-FM, as the "Center" of the FM dial.

On November 14, 1985, KCNR-FM changed call letters to KKLI and rebranded as "K-Lite 97 FM," with a soft adult contemporary format.

In 1988, Heritage Media acquired KKLI, the owners of KKSN in suburban Vancouver, Washington.

[9] On February 5 of that year, KKLI switched its call sign to KKSN-FM, and the following day, changed its format to oldies, simulcasting with the AM, which had been carrying classical music.

On April 21, 2005, at 2 p.m., after playing "American Pie" by Don McLean, KKSN-FM flipped to the current adult hits format as "Charlie FM."