Well, unless the site has several control channel frequencies in which the site may be setup to alternate them. I've noticed that USAF does this quite a bit.
Sure - but that really wasn't the question. The system won't work unless there is a control channel present (or one frequency or another) at all times.
But if we want to get into more detail - I believe the radios will still work if the control channel goes away but at that point radios default selected talkgroups to fixed frequencies - but at that point it's no longer a trunked system.
Sure - but that really wasn't the question. The system won't work unless there is a control channel present (or one frequency or another) at all times.
What you smokin? Of course that was the question. You just repeated what I said above. The control channel transmits 100% of the time unless it falls back to a backup control channel.
You can argue that there is no such thing has a backup control channel but that's just semantics.