MCMC announce to cancel 477  MHz Band for Personal Radio Service Device Use. On December 3, 2022 MCMC announcing that the Class Assignment for personal radio service devices operating in the 477.0125-477.4875 MHz and the 477.5250-477.9875 MHz frequency bands will be cancelled on January 1, 2023. Personal radio service devices operating in these frequency bands will no longer be permitted to be used, purchased, and/or imported after this date.