Hey Bob, it's Trentbob. I am not very happy with the SDS 100 at all as it does not do well on Bucks County simulcast system with lots of missed Transmissions.
It does however work well on Trenton nxnd. I use one of my three ground planes on the roof to pick up the two sites State Street and Hoffman Avenue from Bristol PA.
I don't bother to monitor the fire talk groups as the old UHF frequency rebroadcast all of them with a very strong signal.
Dispatch1, data2, Citywide 3, the two Street crime tac channels 5 and 6, conversation 7, supervisors 8 and CIB 10 are not encrypted. I have heard what sounds like encryption on Channel 9.
Whatever you do do not go near the rebranded GRE Whistler scanners. Trx-1 does not work a lick on simulcast in Bucks County and has many missed Transmissions on Trenton. Hope this helps.