UK Band Plans

On most bands, certain sections are set aside for use with particular modes. The object of this 'band planning' is to ease communication by separating incompatible modes of transmission as far apart as possible to minimise interference, and to best serve the various needs of all radio amateurs.

In some countries observance of band plans is mandatory, in others (e.g. USA) their use is determined by the class of licence held by the operator. They are voluntary in the UK, but it is good operating practice to observe them at all times.

I have a dual-band rig, can I use it as a repeater ?

Some VHF/UHF rigs are capable of acting as a cross-band repeater, operated by carrier sense. Unless these are licenced as a repeater (with a GB3.. call sign) or being operating by an emergency communications group under a current 'talk-though' permit then they may not be used as a repeater.

My neighbour complains he can hear my voice on his television.

This is a case of Radio Frequency Interference (RFI / TVI) and the correct term is 'Electromagnetic Compatibility' or EMC. Where the reasons behind the problem is not clear (and they seldom are), consult one of the many guides to EMC problem-solving. One good source is the ARRL Handbook (published annually by the American Radio Relay League). Another is the Radio Amateurs' Guide to EMC by R. Page-Jones G3JWI (published by the RSGB). Abbreviated advice from the latter volume is to be found in the RSGB Call book & Information Directory. There is a network of EMC Coordinators to give local advice in extreme cases. Details from the RSGB. For those suffering interference, a useful guide is a booklet called How to Improve Television and Radio Reception, published by the Radio communications Agency a few years ago. It is now out of print, but many copies are in circulation. The BBC have a web page devoted to radio and television reception advice. Click here to go to the page.

I want to take my radio to sea / use it in an aircraft.

Maritime Mobile (/MM) operation has been a part of the UK licence for several years now, previously it was a separate licence. On a vessel that is not yours you must obtain the written permission of the vessel's master before installing or using a transceiver (this includes cross-channel ferries). The master may insist that you observe radio silence at times and this must be done. In international waters, only those bands that are permitted for the ITU region being visited may be used. In non-UK territorial waters, be aware that amateur activity in harbours may not be permitted. If in doubt, seek advice from that country's authorities before travelling.

Aeronautical mobile in the UK is not permitted and the licence is quite specific about this. If you are carrying a transceiver by air make certain you can switch it on to satisfy the airport security then switch it off and leave it off.