Differences

This shows you the differences between two versions of the page.

--- uk-callsigns [2026/02/23 17:47] – [RSL History] g3aka
+++ uk-callsigns [2026/02/25 19:45] (current) – [Find Available Callsigns] g3aka
@@ Line 26: / Line 26: @@
 ====== Find Available Callsigns ======
-An easy way to see at a glance which callsigns are available for issue is to use the M0PYL Callsign Lookup. Note: All callsigns marked as Reserved with a Date Last Modified of either blank or more than 5 years old are available for issue, you just need to ring Ofcom and ask them to change it to Available status.  The Date Last Changed can be obatined from the [[https://wiki.oarc.uk/uk-callsigns#ofcom_licence_database|Ofcom Database Spreadsheet]]
+An easy way to see at a glance which callsigns are available for issue is to use the M0PYL Callsign Lookup. Note: All callsigns marked as Reserved with a Last Modified Date of either blank or more than 5 years old are available for issue, you just need to ring Ofcom and ask them to change it to Available status.  The Last Modified Date can be obatined from the [[https://wiki.oarc.uk/uk-callsigns#ofcom_licence_database|Ofcom Database Spreadsheet]]
   * [[https://m0pyl.lorier.net/callsigns/|M0PYL Callsign Lookup]]
@@ Line 33: / Line 33: @@
 The prefixes of UK callsigns have changed considerably over the past century, the optional regional prefixes we have today only exist because at various times the RSGB made representations to the regulator to create them. Prior to the 1990's the term "Regional Secondary Locator" (RSL) wasn't used, either "Callsign Prefix" or "Callsign Zone" were used instead.
-Up until July 1991 UK amateur callsigns used only the G prefix. The introduction of the Novice (Intermediate) licence saw the use of the 2 prefix which due to ITU callsign regulations required the use of a letter between the "2" and the next numberal. It may well be this change triggered the use of the term "Regional Secondary Locator" instead of Prefix.
+Up until July 1991 UK amateur callsigns used only the G prefix. The introduction of the Novice (Intermediate) licence saw the use of the "2" prefix which, due to ITU callsign regulations ([[https://wiki.oarc.uk/uk-callsigns#itu_radio_regulations_for_amateur_callsigns|ITU-RR Article 19.68]]), required the use of a letter (A-Z) between the "2" and the next numeral to prevent a two digial numeral appearing at the start of the callsign e.g. "20". It may well be this change triggered the use of the term "Regional Secondary Locator" instead of Prefix.
 September 1989 RadCom reported the RSGB had suggested to the then regulator, the DTI, the use of the "M" prefix for Novice callsigns but "2" was eventually chosen by the new regulator, the Radiocommunications Agency (RA) in 1991