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800 or 900 megahertz trunk system in a phase 2 trunk system. The other difference is that we would see everything move over to digital as opposed to analog. So one of the important aspects of having a trunk radio system is the assignment of virtual channels. So back in the day, as I mentioned before, you'd have a fixed channel. Just for purposes of discussion, you'd say 400 megahertz is your channel 400 and 1 megahertz is another channel, 403 is a third channel, et cetera. Well, with these trunk radio systems and control channels, you're not doing that. You're taking a handful of frequencies, maybe less than 20 frequencies. Two or three of them might be reserved for control channels as a primary, secondary, and tertiary or backup control channel. And then the rest of the channels are operational channels. Or even one of them might be some other form of a data channel. But what you can do is you can assign hundreds potentially