The transmitter site is on NE Marine Drive in the northeast side of Portland along the Columbia River.

By day, it runs the maximum power for commercial AM stations in the U.S., 50,000 watts, audible around much of northwest Oregon and southwest Washington.

KFXX is a network affiliate of ESPN Radio but mostly runs its own local shows on weekdays.

Followed by "Primetime with Isaac Ropp and Jason 'Big Suke' Scukanec" is heard on weekday afternoons from 3 to 7 pm.Primetime from 3-6 is mostly sports related.

Nights and weekends, KFXX runs programming from ESPN Radio when it isn't airing a live sports event.

In 1927, the call sign was changed to KWJJ, incorporating the initials of the station's founder, Wilbur J. Jerman.

[7] After the enactment of the North American Regional Broadcasting Agreement (NARBA) in 1941, KWJJ moved to its current position on the dial, at 1080 kHz.

KWJJ became Portland's ABC Radio Network affiliate in 1959 and adopted a country music format on March 1, 1965.

[11] A year later, Park acquired KJIB, an FM station airing a beautiful music format.

[16] KFXX and its sports format moved to AM 910 on March 29, 1998, swapping frequencies with adult standards-formatted KKSN.

[17] In its early days as a sports station, one of KFXX's hosts was Neil Lomax, a former quarterback at Portland State University and the St. Louis/Phoenix Cardinals.