As a radio transmitter or receiver location system the QRA locator is considered defunct, but may be found in many older documents.
The QRA locator system in the 4-character format was introduced at a meeting of the VHF Working Group in The Hague in October 1959.
The QRA locator was further developed with the addition of the fifth character at the Region 1 Conference in Malmö (1963).
The QRA locator was officially adopted by IARU Region 1 in 1966 and was renamed "QTH-locator" a year later.
[1] QRA locator references consist of a string of two capital letters, two numerical digits and one lower case letter, e.g. FG32c.