KZNX

The station's transmitter is off Dale Overton Road in the Thoroughbred Estates neighborhood of Del Valle, Texas.

But because AM 1530 is a clear channel frequency reserved for Class A WCKY in Cincinnati and KFBK in Sacramento, KZNX must significantly reduce power during critical hours and at night.

[4] Two years later, the Lower Colorado River Authority acquired KOPY; the public utility's acquisition of the radio station, which had previously gone silent,[5] came in the wake of 1991 floods in the region that required more timely dissemination of information than the region's weekly newspapers and coverage-limited radio stations could provide.

Public response to KWTR was "fairly good", but the river authority ultimately decided that working with the National Weather Service was more cost-effective, and in April 1997, KWTR gave way to "K-News", an all-news radio station owned by Yellow Rose Communications alongside 92.1 KIKY (now KYLR)[8] LCRA sold the station for $632,000; a new KNEZ call sign was instituted in April 1997.

[10] Norsan Media began operating KTXX-FM as a simulcast of KZNX on August 2, 2023, when the company announced that it was purchasing the station from Genuine Austin Radio.

Logo before simulcasting with 104.9