URE, the Spanish national Amateur Radio Association, member of the IARU, invites all licensed amateur radio operators and SWLers worldwide to participate in the “150th ITU Anniversary Special Award”
Ten different special event stations with the prefix AO150 will be active in all HF amateur bands in all modes during the complete month of May. Amateur Radio operators who contact a number of these special stations will be granted with a dedicated Diploma. Top scorers worldwide by number of different contacts with the AO150 stations will receive free of charge a trophy/medal in recognition of their achievement,
More information at URE home website