KTSN (1060 kHz) is a daytimer AM radio station licensed to Lockhart, Texas, and serving the Austin metropolitan area.

As 1060 AM is a clear channel frequency reserved for Class A stations XECPAE in Mexico City and KYW in Philadelphia, KTSN must go off the air at night to avoid interference.

Sun Radio's mission, according to the website, is to preserve the culture of Texas music with a minimal impact on the environment.

It was owned by Heath–Reasoner Broadcasters (Dan Heath of Lockhart and Marion Reasoner of Fort Worth) and operated with 250 watts.

[6] On May 29, 2022, following the acquisition of the station by Township Media, KFIT began originating the adult album alternative and Americana "Sun Radio" format previously found on KTSN (1490 AM), now KJFK), feeding K261DW (100.1 FM) among other signals.

Sun Radio also leases the HD3 subchannel of KLZT 107.1 in Bastrop, which is owned by Sinclair Telecable Inc. and operates under the name Waterloo Media.