As mentioned above from my vantage point,
bottom line is that scanner, try to sell it to someone elsewhere outside of Allegheny.
forums.radioreference.com
Use that money to get any of the current Unidens 325P2, 996P2, 436HP, Home Patrol2, 536HP, SDS 100, SDS 200 or the Whistler TRX1/TRX2 that all can handle Phase II
I see one site in Alleghany with Simulcast so the SDS100/200 can handle that the best.
325p2/996p2 will need to be programmed, the others I would recommend to you as they run off SD cards and can program themselves, but are more $ accordingly. The databases they come with are several years old even brand new. They need their database updated by software. I recommend the Unidens and then use Sentinel to update the database and firmware updates on them and also you can use
ARC software /
ProScan.
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I imported into PSREdit500 software I also saw...
On all the conventional's/Analog frequencies for airplanes
All have Priority set, all locked out is on - so never can hear them until they are unlocked, attenuator is on all them so that kills the signal strength on them all. - turn all those options to OFF.
All 20 scanlists are on.
I concur what Tvengr said above as well about assigning airplanes to one scanlist and say another county one another scanlist # etc.
Need to limit what you put into it to just your city-county and maybe the surrounding counties is normally what you can be expected to be able to tune in.
Tvengr is correct about your county radio system, that radio cant work on that, so just delete all the PA trunked you have.
Look at
PA-STARNet: Pennsylvania Statewide Radio Network Trunking System, Statewide, Pennsylvania MODE of T is Phase II, TE means encrypted.
What you can get is most of this
Allegheny County, Pennsylvania (PA) Scanner Frequencies and Radio Frequency Reference, minus the MODE column of P25E(encrypted) and DMR - Mototrbo. The ones with FMN you can and as well as most any cheap non trunking scanner could too.
Also look in the upper right of that page to see if anything you'd want to tune in is there. Radio can only get AM, FM, FMN, LTR, Phase I, so anything beyond that you cant get.