The Bristol Contest Group is a very successful sub-group within the Bristol RSGB Group. It is charged with promoting amateur radio contesting within the region. It participates in a wide variety of activities and contests. Over the past 15 years or more it has been prominent in the leader tables of RSGB contests such as Islands on the Air, Club Championships, Field Days and the Affiliated Societies Super League. Bristol CG's most notable success has been in the IOTA Contest where it has been overall winner four times, which is more than any other group.
The call signs used by the group include: G6YB (and regional variants GJ6YB, GD6YB, GX6YB, GT6YB, GW6YB), EJ2MT, and PJ2Y.