Ham-Com is a yearly amateur radio convention and is produced by an all-volunteer staff. The first annual convention was held in June of 1978. Over the next 36 years the convention has moved from venue to venue as the attendance and need for space increased. Because of its central US location, Ham-Com draws attendees from every state and visitors from around the world for the yearly event. Ham-Com hosts various American Radio Relay League (ARRL) division events and also has the longest-running Boy Scouts of America radio merit badge program held during the convention. 

More information - http://www.hamcom.org/