 80 Wing worked under the immediate control of the Air Ministry, but kept in close touch with RAF Fighter Command's operations room at RAF Bentley Priory.The first jammers developed at Swanage were simple diathermy sets to transmit a 'mush' of noise on the "Knickebein" frequency.These were quickly replaced by higher powered equipment called 'Aspirins' (to counteract the "Knickebein" beams, which were codenamed 'Headaches').