cluster.dk - the worlds biggest 11-meter radio notification system

Description: cluster.dk is the worlds biggest notification system for 11-meter radio communication. We have most spots each day and we have the largest number of subscribers. cluster.dk also supplies our users with online Message Board, integrated databases with all needed info for an 11-meter DX operator.
Keywords: Walkie Talkie, cb radio, 11 meter, radio system, activeonair