KTSM (690 kHz) is a commercial AM radio station licensed to El Paso, Texas. KTSM is owned by iHeartMedia, Inc. and airs a Talk radio format. The transmitter is in the extreme north end of El Paso, and studios are located along Mesa Drive in west central El Paso. KTSM broadcasts at 10,000 watts around the clock. Because the station operates on 690 kHz, a Canadian Clear-channel frequency, KTSM uses a directional antenna to avoid interfering with other stations at the same dial position.