 Historically, Imperial College Radio consisted of two studios, "Southside" and "Northside", named after the accommodation blocks under which they were situated.Southside was the main broadcast studio, whilst Northside was primarily designated as a recording/production studio.The two studios were linked via audio cables which ran through the College's system of service tunnels, enabling communications, and the ability for the Southside studio to broadcast the output of the Northside studio.