RSGB Band Plan (effective from 1st January 2021)
	The following band plan is largely based on that agreed at IARU Region 1 General Conferences with some local differences on
	on frequencies above 430 MHz.
	21 MHz (15m)	Neccesary	UK Usage
		Bandwidth
	21,000-21,070 kHz	200 Hz	Telegraphy
			21,055 kHz   QRS (slow telegraphy) Centre of Activity.
			21,060 kHz   QRP (low power) Centre of Activity
	21,070-21,090	500 Hz	Narrow band modes
	21,090-21,110	500 Hz	Narrow band modes - automatically controlled data stations (unattended)
	21,110-21,120	2.7 kHz	All modes (excluding SSB) - automatically controlled data stations (unattended)
	21,120-21,149	500 Hz	Narrow band modes
	21,149-21,151		IBP - reserved exclusively for beacons
	21,151-21,450	2.7 kHz	All modes.
			21,180kHz - digital voice centre of activity
			21,285 kHz - QRP Centre of Activity.
			21,340 kHz - Image Centre of Activity.
			21,360 kHz - Global Emergency Centre of Activity
	Note 1:  21,125-21,245 is also designated for use by amateur satellites
	LICENCE NOTES:  Amateur and Amateur Satellite Service - Primary User.
	Notes to the Band Plan
	ITU-R Recommendation SM.328 (extract)
	Necessary bandwidth: For a given class of emission, the width of the frequency band which is just sufficient to
	ensure the transmission of information at the rate and with the quality required under specified conditions.
	The use of Amplitude Modulation (AM) is acceptable in the all modes segments but users are asked to consider
	adjacent channel activity when selecting operating frequencies.
	Foundation and Intermediate Licence holders are advised to check their licences for the permitted power limits and
	conditions applicable to their class of licence.