KESR (107.1 FM, "107.1 Bob FM") is a radio station located in Redding, California broadcasting to Shasta & Tehama Counties.

The station is licensed to Results Radio of Redding Licensee, LLC.

For several years it was called "Star 107.1" and was an "adult contemporary" station with local shows.

In 2005, it became an "adult hits" formatted "Jack FM" station.

The station's construction permit was originally licensed by the Federal Communications Commission (FCC) to long-time North State broadcaster Steve Thomas [1] [2] and then the license was transferred to McCarthy Wireless, Inc. (licensee of other Redding area radio stations).