I frequently listen to SRP. I am in Ahwatukee and I can receive sites 1, 4, 5, and 7. South mountain is the strongest and carries most traffic that is on other sites. The system is very busy during the day.
As mentioned, I am using a BCD436HP and it works very well on the 900mhz freqs that the SRP system uses.
I have it ready in a favorite list as SRP is my electricity prover and I will certainly listen during a power outage.