27 MHz R/C Band
Both AM and FM share the same frequency band. Most modern radio sets are AM but some older sets were available as FM. The frequency band approved in U.K. is 26.960 to 27.280MHz.
The recognized frequency indicator for this band is the appropriate coloured pennant(s) (flag(s)) or a white flag with channel number in black attached to the transmitter arial. A white flag is recommended for sets using 10kHz spacing. Generally at least 20 kHz spacing between transmitter frequencies is advised as only the very latest equipment is capable of operating safely at this specification.
Split frequencies are no longer exclusive to model radio control and may be subject to interference from other authorized users.