RSGB Bandplan (effective from 1st January 2007)
18 MHz (17m) Necessary UK Usage
  Bandwidth  
18,068-18,095 kHz 200 Hz Telegraphy 18,096 kHz QRP (low power) Centre of Activity.
18,095-18,105 500 Hz Narrow band modes
18,105-18,109 500 Hz Narrow band modes - automatically controlled data stations (unattended) 
18,109-18,111   IBP - reserved exclusively for beacons
18,111-18,120 2.7 kHz All modes - automatically controlled data stations (unattended)
18,120-18,168 2.7 kHz All modes - 18,160 kHz  Global Emergency Centre of Activity 
     
LICENCE NOTES: Amateur and Amateur Satellite Service - Primary User.
The band is not to be used for contests or bulletins.