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Now, in many other systems, so FDA, FDMA systems, you have a control channel as well. And what that control channel does is it makes sure that whichever radios there are, they're on the correct, they're within their correct spectrum allocation, right, because you're taking that 12.5 kilohertz band or whatever it is and you're cutting it in half. So in the case of DMR, for example, DMR you have two time slots, but let's think about the color coding on DMR for a minute, right? If you can imagine the color coding on DMR as being two separate frequencies, the control channel will make sure everybody has their correct color coding so everything works. This is why sometimes when you have systems that don't utilize repeaters with control channels, problems can emerge, but that's often from a programming issue, but which manually needs to be fixed as opposed to automatically being fixed. Anyhow, let's carry on.