How does that work (with Edmonton) - does the ambulance switch over/join the EFRS channels when they know they're working with Fire on a job, or do they always have a radio on there and another on CCC, or what?
To the OP: Any of the channels marked as MA11-14 (in the RRDB; there are several sets) are in the clear, the rest is encrypted - for all EMS all over the province.