| Notes to the Band Plan | |||||||||||||||||||||||||||||||
| This Band Plan is largely based on that agreed at the 2005 IARU Region 1 Conference with some local differences on | |||||||||||||||||||||||||||||||
| frequencies above 430 MHz. | |||||||||||||||||||||||||||||||
| Mode definitions | |||||||||||||||||||||||||||||||
| All Modes | CW, SSB and those modes listed as Centres of Activity, plus AM (Consideration should be given to adjacent channel users. | ||||||||||||||||||||||||||||||
| Image Modes | Any analogue or digital image modes within the appropriate bandwidth, for example SSTV and FAX | ||||||||||||||||||||||||||||||
| Narrow band modes | All modes using up to 500kHz bandwidth, including CW, RTTY, PSK, etc | ||||||||||||||||||||||||||||||
| Digimodes | Any digital mode used within the appropriate bandwidth, for example RTTY, PSK, MT63, etc | ||||||||||||||||||||||||||||||
| Misc Notes | |||||||||||||||||||||||||||||||
| 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. | ||||||||||||||||||||||||||||||
| Licences | All Licence holders are advised to check their licences for the permitted power limits and conditions applicable to their class of licence. | ||||||||||||||||||||||||||||||
| Sideband usage: | Below 10MHz use lower sideband (LSB), above 10MHz use upper sideband (USB). Note the | ||||||||||||||||||||||||||||||
| lowest dial setting for LSB voice mode is 1843, 3603 and 7043kHz | |||||||||||||||||||||||||||||||
| Amplitude modulation (AM) may be used in the telephony sub-bands providing consideration is given to adjacent | |||||||||||||||||||||||||||||||
| channel users (NRRL Davos 05) | |||||||||||||||||||||||||||||||
| CW QSOs are accepted across all bands, except within beacon segments (Recommendation DV05_C4_Rec_13) | |||||||||||||||||||||||||||||||
| Contest activity shall not take place on 10, 18 and 24MHz bands | |||||||||||||||||||||||||||||||
| Non-contesting radio amateurs are recommended to use the contest-free HF bands (30, 17 and 12m) during the | |||||||||||||||||||||||||||||||
| largest international contests (DV05_C4_Rev_07) | |||||||||||||||||||||||||||||||
| The term "automatically controlled data stations" includes Store and Forward stations. | |||||||||||||||||||||||||||||||
| Transmitting frequencies | The announced frequencies in the bandplan are understood as "transmitted frequencies" (not those of the suppressed carrier!) | ||||||||||||||||||||||||||||||
| Unmanned transmitting stations | IARU member societies are requested to limit this activity on the HF bands. It is recommended that any unmanned transmitting stations on HF shall only be activated under operator control except for beacons agreed with the IARU transmitting stations on HF shall only be activated under operator control except for beacons agreed with the IARU Region 1 Beacon Coordinator, or specially licensed experimental stations. | ||||||||||||||||||||||||||||||
| Band Notes | |||||||||||||||||||||||||||||||
| 1.8MHz | |||||||||||||||||||||||||||||||
| Radio Amateurs in countries that have a SSB allocation ONLY below 1840kHz, may continue to use it, but the | |||||||||||||||||||||||||||||||
| National Societies in those countries are requested to take all necessary steps with their licence administrations | |||||||||||||||||||||||||||||||
| to adjust phone allocations in accordance with the Region 1 Bandplan (UBA - Davos 2005) | |||||||||||||||||||||||||||||||
| 3.5MHz | |||||||||||||||||||||||||||||||
| Intercontinental operations should be given priority in the segments 3500 - 3510kHz and 3775 - 3800kHz | |||||||||||||||||||||||||||||||
| Where no DX traffic is involved, the contest segments should not include 3500 - 3510kHz or 3775 - 3800kHz. | |||||||||||||||||||||||||||||||
| Member societies will be permitted to set other (lower) limits for national contests (within these limits). | |||||||||||||||||||||||||||||||
| 3510 - 3600kHz may be used for unmanned ARDF beacons (CW, A1A) (Recommendation DV05_C4_Rec_12) | |||||||||||||||||||||||||||||||
| Member societies should approach their national telecommunication authorities and ask them not to allocate | |||||||||||||||||||||||||||||||
| frequencies other than amateur stations in the band segment that IARU has assigned to intercontinental long | |||||||||||||||||||||||||||||||
| distance traffic | |||||||||||||||||||||||||||||||
| 7MHz band | |||||||||||||||||||||||||||||||
| The band segment 7035 - 7043kHz may be used for automatic controlled data stations (unattended) traffic in the | |||||||||||||||||||||||||||||||
| areas of Africa south from the equator during local daylight hours. | |||||||||||||||||||||||||||||||
| 10MHz band | |||||||||||||||||||||||||||||||
| SSB may be used during emergencies involving the immediate safety of life and property and only by stations | |||||||||||||||||||||||||||||||
| actually involved in the handling of emergency traffic | |||||||||||||||||||||||||||||||
| The band segment 10120kHz to 10140kHz may be used for SSB transmissions in the area of Africa south of the | |||||||||||||||||||||||||||||||
| equator during local daylight hours. | |||||||||||||||||||||||||||||||
| News bulletins on any mode should not be transmitted on the 10MHz band. | |||||||||||||||||||||||||||||||
| 28MHz band | |||||||||||||||||||||||||||||||
| Member societies should advise operators not to transmit on frequencies between 29.3 and 29.51MHz to avoid | |||||||||||||||||||||||||||||||
| interference to amateur satellite downlinks | |||||||||||||||||||||||||||||||
| Experimentation with NBFM Packet Radio on 29MHz band: | |||||||||||||||||||||||||||||||
| Preferred operating frequencies on each 10kHz from 29.210 to 29.290MHz included should be used. A deviation | |||||||||||||||||||||||||||||||
| of +/- 2.5kHz being used with 2.5kHz as maximum modulation frequency. | |||||||||||||||||||||||||||||||