It looks like they have an EDACS system with analog, digital, digital encrypted, and mixed-mode talkgroups. The talkgroups listed are labled A, D, E, or M in the Mode column.
You will only be able to hear analog transmissions. Analog transmission probably only occur on the talkgroups labled A or M but I don't know anything about that system or if the DB info is accurate.
I can answer general questions about EDACS and ProVoice because we have the same type system here but anything specific to that area should be asked in the NM forum.