So far all of the TG's I have heard are in the clear but I did see a few TG's that had encryption.
They may be running mobile data some, have noticed private radio to radio traffic and some telephone interconnect calls.
Since they only have ten freq's it appears that the system may get overwhelmed pretty soon, there is a lot of traffic and not enough
freq.'s to go around to accommodate all of the TG's.
In my opinion they need at lest 15 or twenty freq.'s now or some of of them want be able to talk during peak radio usage.