He changed formats to popular music, simulcasting some parts of KLBK (AM)'s day schedule, using the live studio equipment in the evenings, and the automation overnights.

In 1980 the station was sold to Southern Minnesota Broadcasting Company and the AM callsign changed to KSAX, though the FM stayed as KLBK-FM.

Jagger brought several air talents to town so that "FMX" had a bigger time sound than any previous Lubbock radio operation.

The broadcast booth itself has often been referred to as "Voodoo Central", a name created by Mike Driver and adopted by the rest of the staff.

[citation needed] FMX also served as the flagship radio station for Texas Tech Red Raiders football from 1994 to 2008.

He spent many years at Tichenor Media/Hispanic Broadcasting Corporation before starting Moving Target Consulting Works.

KFMX-FM transmits from an antenna shared with KLLL-FM, on a tower also used by KQBR, KZII-FM, KAIQ, KKCL-FM and KFYO's 95.1 FM facility.

The Lubbock Tower was built by a consortium of stations (KFMX, KLLL, KQBR and KZII) in 1985.