| 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. | ||||
| 70 MHz (4m) | Necessary | UK Usage | ||
| Bandwidth | ||||
| 70.000-70.050 MHz | Propagation Beacons only | |||
| 70.030 MHz Personal beacons. | ||||
| 70.050-70.250 | 2.7 kHz | Narrow Band modes | ||
| 70.085 MHz PSK31 centre of activity | ||||
| 70.150 MHz MS calling | ||||
| 70.185 MHz Cross-band activity centre | ||||
| 70.200 MHz SSB/CW calling | ||||
| 70.250-70.294 | 12 kHz | All Modes | ||
| 70.260 MHz AM/FM calling | ||||
| 70.294-70.500 | 12 kHz | All modes channelised operations using 12.5 kHz spacing. | ||
| 70.3000 MHz RTTY/fax calling/working | ||||
| 70.3125 MHz Digital modes | ||||
| 70.3250 MHz DX Cluster | ||||
| 70.3375 MHz Digital modes | ||||
| 70.3500 MHz Internet Gateway - can be used by RAYNET | ||||
| 70.3625 MHz Internet voice gateway | ||||
| 70.3750 MHz Can be used by RAYNET | ||||
| 70.3875 MHz Internet voice gateway | ||||
| 70.4000 MHz Can be used by RAYNET | ||||
| 70.4125 MHz Internet voice gateway | ||||
| 70.4250 MHz FM simplex - used by GB2RS news broadcast | ||||
| 70.4375 MHz Digital modes (special projects) | ||||
| 70.4500 MHz FM calling | ||||
| 70.4625 MHz Digital modes | ||||
| 70.4750 MHz | ||||
| 70.4875 MHz Digital modes | ||||
| LICENCE NOTES: Amateur Service 70.0-70.5 MHz Secondary User: 22dBW permitted | ||||
| Available on the basis of 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. | ||||