Don't get me wrong, 93.3 isn't the problem here. It's signal coverage is among the best in the state. The main issue with the 93.3 signal occurs within a few miles of the 93.7 signal which originates just a few miles west of central austin. In certain parts of central austin, downtown, and south austin, there is noticable bleed and interferance from 93.7 on certain radios (especially household and walkmans) Most car radios will do better. However, once you are 5-7 miles away from the 93.7 tower, the interferance issues are mostly gone.
But alone, the 93.3 tower is awesome. I have clearly heard 93.3 from North San Antonio, to fredricksburg, all the way up to just south of Hillsboro--east almost out to Brenham. On certain weather days, I have actually had KDHT/KGSR attempt to overtake KDBN in certain parts of Southwest Fort Worth.