 47 teams were selected for the event, but only 46 actually participated.Brazilian airline Varig declared bankruptcy on June 26, causing severe travel difficulties for many teams traveling to Florianópolis the following week, and the Czech team was unable to make other travel arrangements in time.Teams were provided with larger antennas and 700 watt amplifiers in 2006, to help compensate for the greater distance from Brazil to the main centers of contesting activity in Europe and North America.