The Bristol Contest Group is a 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 20 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 as GJ6YB from the Island of Jersey.
The call signs used by the group include: G6YB (and regional variants GJ6YB, GD6YB, GX6YB, GT6YB, GW6YB), EJ2MT, and PJ2Y.