Because KEX is a 50,000-watt Class A station, it reaches all of the Portland metropolitan area and beyond, providing grade B coverage as far south as Corvallis and as far east as The Dalles. At night, KEX can be heard around the Western United States and Western Canada. The transmitter is located off SE Lawnfield Road in Sunnyside. It uses a non-directional antenna in the daytime. But at night, to protect other stations on 1190 AM, it switches to a directional antenna.