That span is the total allowable space in the FCC part 15 rules for 5 GHz gear, where the AF5&#x2F;5X has been tested and certified. Other radios can be used from 5200 to 5850 MHz (DFS frequencies permitting).<p>But the size of the channels it can operate in are 5, 10, 15, 20, 30, 40, 60 or 80 MHz wide. Software configurable on the radio.