On December 23, 1926, KEX first signed on the air. Some sources show that the station may have originally started broadcasting on 670 kHz. On November 11, 1928, KEX started broadcasting on 1180 kHz under the terms of the Federal Radio Commission's General Order 40. On March 29, 1941, the station moved to 1190 kHz under the terms of the North American Regional Broadcasting Agreement. KEX was an NBC Blue Network affiliate, carrying its schedule of dramas, comedies, news, sports, game shows, soap operas and big band broadcasts during the Golden Age of Radio. In 1945, as the Blue Network became ABC, KEX's affiliation continued. KEX was the first station to give the voice of Bugs Bunny, Mel Blanc, his own show. Blanc's Cobwebs & Nuts program debuted June 15, 1933, and ran Monday through Saturday from 11 p.m. to midnight. The Oregonian Publishing Company, which owned The Morning Oregonian newspaper, acquired KEX in 1933. From 1934 to 1943, the station's studios were located in The Oregonian Building, in space shared with co-owned KGW, now KPOJ, which was the NBC Red Network affiliate in Portland. Westinghouse Broadcasting expanded to the West Coast in 1944 with its purchase of KEX, then running 5,000 watts, and sharing its frequency with another Westinghouse station, WOWO in Fort Wayne, Indiana. In 1948, Westinghouse got the Federal Communications Commission to increase KEX's power to 50,000 watts, day and night. Also in 1948, Westinghouse put KEX-FM on the air at 92.3 MHz. KEX-FM mostly simulcasted KEX. But few people had FM radios in those days and KEX-FM was taken off the air in the early 1960s. Also in the early 1960s, as network programming shifted from radio to television, KEX began airing a mix of middle of the road music, talk, news and sports. Having reached the FCC's then-limit of seven AM stations, Westinghouse sold KEX to actor and singer Gene Autry's media company, Golden West Broadcasters, in 1967. In 1984, KEX was acquired by Taft Broadcasting. Taft became Citicasters in 1993, which was merged into Clear Channel Communications in 1999. Clear Channel was the forerunner to current owner iHeartMedia, Inc. As music listening switched to FM radio stations, KEX cut back on the songs it played till it became a true talk station by the late 1990s. On March 30, 2011, KEX began simulcasting on FM once again, using translator stationK272EL at 102.3 MHz. It also could be heard on the HD2 subchannel of co-owned KKRZ. The addition of K272EL was in response to rival news/talk outlet KXL's move from 750 AM to 101.1 FM. On September 9, 2013, KEX's FM simulcast ended, with KKRZ-HD2 and K272EL switching to an alternative rock format, branded as "Radio 102.3".
