I should have made the above post/reply clearer- I'd like to confirm what DCNR is using inter-agency (not comms with local FD units). related to secondary and tac comms when they are in Pike (or Monroe for that mater).
If I recall correctly, the standard mobile radio is an 800MHz STARNET radio. Some units (I think Ranger vehicles) have both an 800 and VHF mobile installed. It has been a while since they switched and I would have to look back through old papers to see who got what. Originally, VHF portables would also be assigned to state parks personnel for carrying when out on foot. This is why some of the larger parks routinely make use of the VHF repeaters in their area. That utilization seems to be less than originally planned, though. Maybe they got better 800 coverage in some areas? The 800 coverage is definitely poor in some areas...they just improved a VHF site in Centre County last year for two state parks in the NE part of that county. In parks/forest districts where 800 issues remain, the VHF repeaters get used. In parks/forest areas where the 800 coverage is good, they seem to stick with just using 800.
I thought they had VHF portables for forestry fire line ops that utilized the statewide tac channels. A few years ago, there was a very large wildfire in French Creek State Park and the statewide VHF tac channels were in use on that incident. The statewide simplex channels would be available to DCNR personnel and the various volunteer fire companies that make up the wildfire teams controlled by DCNR.
Units can talk between 800 and VHF radios by utilizing the VHF repeater system as every VHF repeater has a corresponding linked talkgroup on the 800 system.
It seems that, in many areas, most routine (not fire line) comms are taking place directly on the 800 system.
I don't have an exact fleetmap, but I know that there is at least one main talkgroup for every forest district and every manned state park (some parks are part of larger multi-park complexes and not staffed directly). You also have the talkgroups for the VHF repeaters. There are also regional channels (i.e. Parks Region 1, 2, 3, 4). There are probably other talkgroups, too. If anybody has a DCNR radio, I would be interested in knowing the fleetmap layout. Some button pushing and writing and a few minutes of time is all that would take.
EDIT: I forgot to add that in areas where VHF is used at the local level, forestry and parks radios have fire and/or police channels in their radios for the local systems. This is why they would be operating on Pike channels to talk to county. DCNR units may also use the county interop talkgroup on the STARNET system to talk to county radio. More typically, it is forest rangers or park rangers running vehicle tags who use the STARNET option.