| RSGB Band Plan (effective from 1st January 2009) | ||||
| 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. | ||||
| 18 MHz (17m) | Necessary | UK Usage | ||
| Bandwidth | ||||
| 18,068-18,095 kHz | 200 Hz | Telegraphy 18,086 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, 18,130kHz SSB QRP centre of activity | ||
| 18,150kHz digital voice centre of activity | ||||
| 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. | ||||
| 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. | ||||