Call signs in the United Kingdom

Call signs in United Kingdom include a three letter country code, and a series of letters and numbers.[1][2][3]

Call signs are regulated internationally by the ITU as well as nationally in the UK by the Office of Communications (Ofcom).[4] It regulates amateur radio in the country as an independent regulator and competition authority for the UK communications industries, with responsibilities across television, radio, telecommunications and wireless communications services. It assigns call signs, issues amateur radio licences, allots frequency spectrum, and monitors the radio waves. Ofcom is no longer responsible for setting and conducting amateur radio exams, which are now run by the Radio Society of Great Britain on their behalf.[5]

The Radio Society of Great Britain[6] (RSGB) is the United Kingdom's recognised national society for amateur radio operators. The society's patron is Prince Philip, Duke of Edinburgh, and it represents the interests of the UK's licensed radio amateurs.

Call sign blocks for telecommunication

The International Telecommunication Union has assigned Great Britain the following call sign blocks for all radio communication, broadcasting or transmission:[7]

Call sign block Principal use
GAA–GZZ domestic
MAA–MZZ domestic
VPA–VQZ Oceanic islands, Antarctica
VSA–VSZ
ZBA–ZJZ Gibraltar, Middle East, south Atlantic
ZNA–ZOZ
ZQA–ZQZ
2AA–2ZZ domestic

While not directly related to call signs, the International Telecommunication Union (ITU) further has divided all countries assigned amateur radio prefixes into three regions; Great Britain is located in ITU Region 1.

Assignments

These are callsigns of BBC Regional transmitters in the years prior to World War II.

Country prefixCall signLocation
GBRG5XX 2Droitwich
GBRG5SCWesterglen
GBRG5NONewcastle upon Tyne
GBRG2EHEdinburgh
GBRG5PYPlymouth
GBRG5SXSwansea
GBRG5GBDroitwich
GBRG2BDRedmoss
GBRG5NOStagshaw
GBRG2BELisnagarvey
GBRG2LO 1London
GBRG2LSLeeds
GBRG5PYPlymouth
GBRG5WA 3Washford
GBRG2LO 1Brookmans Park
GBRG6BMClevedon
GBRG2ZYMoorside Edge
GBRG6FLSheffield
GBRG6BMBournemouth
GBRG2DEDundee
GBRG5SCGlasgow
GBRG6KHKingston upon Hull
GBRG6STStoke on Trent
GBRG5NGNottingham
GBRG5ITBirmingham
GBRG6LVLiverpool

Call sign assignments for amateur radio

Amateur radio or ham radio call signs are unique identifiers for the 75,000 licensed operators.[8] Ofcom allots the individual call signs to the amateurs it licences. Call signs are the property of Ofcom even when assigned.[9]

Prefixes + letters in suffix Licence class
M3 + 3 Letters Foundation Licence
M6 + 3 Letters Foundation Licence
M7 + 3 Letters Foundation Licence
2E0 + 3 Letters Intermediate Licence
2E1 + 3 Letters Intermediate Licence
G1 + 3 letters Full Licence
G2 + 2 letters Full Licence
G2 + 3 letters Full Licence
G3 + 2 letters Full Licence
G3 + 3 letters Full Licence
G4 + 2 letters Full Licence
G4 + 3 letters Full Licence
G5 + 2 letters Full Licence
G6 + 2 letters Full Licence
G6 + 3 letters Full Licence
G7 + 3 letters Full Licence
G8 + 2 letters Full Licence
G8 + 3 letters Full Licence
G0 + 3 letters Full Licence
M0 + 3 letters Full Licence
M1 + 3 letters Full Licence
M5 + 2 or 3 letters Full Licence
G + 1 number + 1 letter Contest callsign
M + 1 number + 1 letter Contest callsign

Callsigns in the G9 series are commercial licences, issued for experimental purposes and these may not be used on the amateur bands (except in the case of a contest callsign).

Regional two-letter prefixes are assigned according to the following table:[10]

Map showing regional indicators.
Region G-prefix M-prefix Intermediate lic. G-club prefix M-club prefix Special event
England G M 2E GX MX GB
Guernsey GU MU 2U GP MP GB
Isle of Man GD MD 2D GT MT GB
Jersey GJ MJ 2J GH MH GB
Northern Ireland GI MI 2I GN MN GB
Scotland GM MM 2M GS MS GB
Wales GW MW 2W GC MC GB

Overseas call sign assignments
Prefix[11] DXCC Entity
VP2E Anguilla
VP2M Montserrat
VP2V British Virgin Islands
VP5 Turks & Caicos
VP6 Pitcairn Island
VR6 Pitcairn Island (prior to 1 May 1998)
VP6D Ducie Island (Pitcairn group)
VP8/F Falkland Islands
VP8/G South Georgia Island
VP8/O South Orkney Islands
VP8/SA South Sandwich Island
VP8/SH South Shetland Islands
VP8 Antarctica
VP9 Bermuda
VQ9 Chagos (Indian Ocean)
ZB, ZG Gibraltar
ZC4 UK Sovereign Base Areas on Cyprus
ZD7 St Helena
ZD8 Ascension Island
ZD9 Tristan Da Cunha
ZF Cayman Islands

Special event call signs

Ofcom reserves the right to issue temporary special event call signs to licensed amateurs holding a full licence.[12]

Special event call signs are issued with a 'GB' prefix, but others like GQ, GO, GR, MQ, GA, MO and 2O have been issued in special cases. Ofcom also allows numerals in special event call sign suffixes. For instance GB75RD was a special event sign for the 75th anniversary of the Reading and District Amateur radio club.[13] More recently Ofcom have agreed to what was a very special arrangement for the use of the Special Event Station call sign Gx100RSGB during 2013 to mark the 100th anniversary of the RSGB (where "x" is replaced by the secondary location identifier, M, W, I, D, U and J, etc. but never with B to form the typical 'GB' prefix for other special events.)

Exceptionally, call signs taking the form 'GB3xx' are usually allocated to repeaters whilst beacons usually take the 'GB3xxx' form.

The GR prefix has now been allocated, as of 2017, as a special event prefix alongside "GB", as the callsign GR2HQ has been in use under a Notice of Variation (NoV) since 2011. The prefix GR has now been allocated in the special event callsign range rather than an NoV. For reference, GR2HQ is the UK multiplier station in the Headquarters section (country-on-country national societies head-to-head section) of the annual IARU HF Championship Contest.[14]

To celebrate the wedding of HRH Prince Harry and Miss Meghan Markle, the RSGB agreed with Ofcom an NoV to authorise the temporary use of the Regional Secondary Locator 'R' after the United Kingdom call sign prefix. Successful applicants were able to use the modifier between the 19th and 21st of May 2018.

Reciprocal agreements

Holders of licences in countries signed up to CEPT TR 61-01[15] operate with their home call sign prefixed with an M/ plus the additional country identifier when necessary (e.g. MM, MI, MW etc.). Holders of licences in countries signed up to CEPT TR 61-02[16] can operate for 3 months before needing a Great Britain call sign as issued by Ofcom.

See also

References
  1. Hepburn, William. "Call signs". Dx Info Centre. Dx Info Centre. Retrieved 24 April 2015.
  2. "International Call Sign Series". ARRL.org. Retrieved 24 April 2015.
  3. "Callsign database by QRZ". QRZ.com. Retrieved 24 April 2015.
  4. Ofcom – Office of Communications
  5. "Archived copy". Archived from the original on 12 May 2013. Retrieved 6 January 2016.CS1 maint: archived copy as title (link)
  6. Radio Society of Great Britain
  7. International Telecommunication Union country call sign assignments Archived 6 July 2011 at the Wayback Machine
  8. Number of UK licensed amateurs
  9. "Transfer of amateur radio call signs" (PDF). Archived from the original (PDF) on 8 July 2008. Retrieved 6 January 2016.
  10. "Amateur Terms" (PDF). OFCOM. Archived from the original (PDF) on 11 March 2012. Retrieved 4 September 2010.
  11. "AC6V call sign information". Archived from the original on 27 June 2017. Retrieved 6 January 2016.
  12. "Applying for a Special Event Station". Archived from the original on 13 March 2013. Retrieved 6 January 2016.
  13. GB75RD at QRZ.COM
  14. IARU HF Championship Contest rules
  15. Recommendation T/R 61-01
  16. Recommendation T/R 61-02
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.