At least as far as the main patrol talkgroups are concerned:
Peoria and Surprise PD's are carried on both Simulcast G and the White Tanks IR full time.
Peoria PD is carried on the Towers Mtn IR part time, when a radio affiliates with it. (Some of the secondary clear TG's such as A-4 Events apparantly are only on Simulcast G.)
Glendale PD is carried on both Simulcast G and currently on Simulcast A. (I assume it will switch back over to Simulcast B once the upgrade with B is finalized. Simulcast B is not in the RRDB at this time due to that upgrade, as the new 700 MHz frequencies are not yet publicly known.)
El Mirage and Avondale PD's are only carried on Simulcast G.
Goodyear PD is carried on both Simulcast's G and J.
Buckeye PD is only carried on Simulcast J.
Phoenix FD is 99% on the simulcast sites only. (On rare occassions, a TG may pop up on the Towers Mtn or Thompson Peak IR sites. It's been this way since the Superbowl. Before that, PFD was carried full time on most of the IR's as well as the simulcast sites.)
Simulcast reception is hit or miss, due to multipath issues. So you may have issues with receiving El Mirage PD and PFD even if you get it working.
I have a GRE PSR-500, and the setting is P25 Auto for both the RWC and the Luke AFB trunked systems if that helps any.
And here's Luke's VHF and UHF air band frequencies, if you don't already have them:
Military Scanner Frequencies and Radio Frequency Reference
John
Peoria