53 MHz band (Aircraft/Car/Boat) FCC Amateur
license required. 2 and 3 channels not produced
on these freqs.

Note: Although the frequency list for the 53Mhz portion of the 6 Meter band is correct, the governing body for this group of frequencies, The American Radio Relay League, has dropped the 53 MHz portion for R/C use as there are hi powered repeaters operating in that portion of the band. It would be advisable if you are a Ham radio operator to use the 50MHz frequencies for R/C . They recommended migrating to 50Mhz about 5 years ago and no longer list 53 MHz in the band plan.