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can reconstitute these conversations. FDMA, which is frequency division and multiple access, this splits your frequency block into a narrower dedicated sub-channel. So you take a standard 12.5 kilohertz channel and you divide it into two distinct 6.25 kilohertz channels. So you're not dividing it by time. You're dividing it up in half, almost like an AM signal getting divided into two sideband signals. And the radial then transmit a continuous stream of data on their specific narrower frequency. So whether it's the upper or the lower half of that frequency. Now, FDMA and TDMA, the concept of either of those isn't that difficult to understand for us as amateur radio operators. But you have a repeater dependency, and it's because.