The "CDXC Cup" is an RSGB Trophy donated by CDXC. It is awarded to the leading single operator UK/ Channel Islands/ Isle of Man entrant in the CQ World-wide Phone Contest. This cup was first awarded for the 1999 contest. The recipient does not have to be a member of CDXC or the RSGB. The CDXC Cup is returnable. This cup parallels the G8KW trophy which is awarded for the CQWW CW Contest.