The UBA was founded on 25 January 1947, when separate amateur radio organizations based in Flanders and Wallonia merged. The Réseau Belge (literally, "Belgian Network") was founded in September 1923 in Brussels and drew its membership primarily from the French-speaking radio amateurs in Brussels and Wallonia. In February 1926, the Réseau Belge began publishing a membership magazine called QSO. Flemish amateur radio operators were eager to see Dutch language articles in QSO, but were unable to persuade the editor of Réseau Belge to publish them. With the support of the publisher of a small Dutch language magazine called Radio, the Vlaamsche Radio Bond ("Flemish Radio Association") was founded in Ghent on 22 September 1929. The new organization established its own magazine called CQ VRB. After World War II, the two organizations agreed to combine into a unified national radio society for Belgium.^[1]

On 9 January 2001 the Royal Union of Belgian Radio Amateurs was officially recognised as an amateur association by ministerial decree under legislation dealing with the establishment of amateur radio stations.^[4]

UBA supports amateur radio operators in Belgium by sponsoring amateur radio operating awards, radio contests, and Amateur Radio Direction Finding competitions. The UBA also operates a QSL bureau for those members who regularly communicate with amateur radio operators in other countries. UBA represents the interests of Belgian amateur radio operators and shortwave listeners before Belgian and international telecommunications regulatory authorities. The UBA also publishes a monthly membership magazine called CQ QSO.