RSGB Band Plan (effective from 1st January 2024)
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.
241 GHz (1.2mm)                                                                             UK Usage
IARU Recommendation    
241,000-248,000 MHz    
All modes 241,600  MHz  +/-IF  - UK centre of activity
   
248,000-248.001 MHz IARU Region-1 preferred centre of  activity
Narrowband modes    
     
248,001-250,000 MHz 248,800 MHz +/-IF  - UK centre of activity
All modes    
     
LICENCE NOTES:  
241,000-248,000 MHz   Amateur Service and Amateur Satellite Service - Secondary User.  
248,000-250,000 MHz   Amateur Service and Amateur Satellite Service - Primary User.  
                                       Note specific conditions apply within 50 km of SK985640 (Waddington) and SE202577 (Harrogate).
     
Notes to the Band Plan
Note-1: Access to frequencies >275 GHz by Full Licensees is also possible by NoV 
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.