RSGB Bandplan (effective from 1st December 2006)
The following bandplan is largely based on that agreed at the 2005 IARU Region 1 Conference with some local differences on
frequencies above 430 MHz.
50 MHz (6m) Necessary  UK Usage
  Bandwidth  
50.000-50.100 MHz Telegraphy
    50.000-50.080 MHz  Propagation Beacons only
  500 Hz 50.090 MHz Telegraphy - Centre of Activity
50.100-50.500 2.7 kHz All Narrow Band Modes. 
    50.100-50.130 MHz  Intercontinental telegraphy & SSB (Note 1)
    50.110 MHz   DX calling (Note 2).
    50.150 MHz   SSB Centre of Activity
    50.185 MHz   Crossband Centre of Activity
    50.200 MHz   MS Centre of Activity
    50-210-50.250 MHz JT6M
    50.230 MHz   JT6M calling frequency
    50.250 MHz   PSK31 Centre of Activity
50.500-52.000 12.5 kHz All Modes.
    50.510 MHz SSTV (AFSK)
    50.520 MHz   Internet voice gateway (10 kHz channels)
    50.530 MHz   Internet voice gateway (10 kHz channels)
    50.540 MHz   Internet voice gateway (10 kHz channels)
    50.550 MHz   Fax working frequency
    50.600 MHz   RTTY (FSK)
    50.620-50.750 MHz   Digital communications
    50.710-50.910 MHz   FM repeater outputs (10 kHz channel spacing)
    51.210 MHz.   Can be used by RAYNET
    51.210-51.410 MHz   FM repeater inputs (10 KHz channel spacing)
    51.430-51.590 MHz   FM (Note 3)
    51.530 MHz   GB2RS new broadcast and slow morse
    51.910-51.950 MHz   Internet voice gateways (10 kHz channels)
    51.950-51.990 MHz.   Can be used by RAYNET
     
Note 1. Only to be used between station in different continents.
Note 2. No QSOs on this frequency. Always QSY when working intercontinental DX.
Note 3. 20 kHz channel spacing. Channel centre frequencies start at 51.430 MHz.
LICENCE NOTES: Amateur Service 50.0-51.0 MHz Primary User:
                                Amateur Service 51.0-52.0 MHz Secondary User: Available on the basis on non-interference
                                to other services (inside or outside the UK). 
     
Notes to the Bandplan
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.