Unless you can pick up the Austin/Travis County regional radio system, you are pretty much out of luck. I'll do some checking, but I think they have disconinued the simulcast of the old UHF frequencies.
www.scancentex.com has an online scanner, but thats only for FD/EMS traffic
On good tropo days, I pick up most of the sites from Navasota. I have been able to track APD clearly with my Pro-96 and a RS 800 antenna from ground level on these days. I have not picked up the legacy UHF repeaters on those same days.