All or just mutual aid Chris, we were told DH EMS would operate on there regular channels and just the outside agencies (Pridemark, AMR, Action Care, Northglenn) would be on Green 1 to talk with the DH Dispatcher.
It appears Western Ambulance has been added today so the rundown of EMS units running calls in Denver along with DFD appears to be Northglenn, Pridemark, South Metro, AMR, Rural Metro, Action Care and Western.
There even posting using the same SSM posts that DG uses. 101, 201, 301 etc etc.
No it's not that frequency; the logic behind it is like FERN. Used for mutual aid, and in this case with the DNC, Green 1 is a common channel that all the ambulance agencies assisting have access to one way or another. Thru the 800 digital system, Denver TRS, Arvada TRS, and I even noticed AMR has a patch to the GREEN channel on their system.