For reference, the microphone-in-the-engine-bay noise-jammer was "Tinsel"
https://en.wikipedia.org/wiki/Tinsel_(codename)
It was just a jammer: there were smarter approaches: "Operation Corona" initially used German-speaking RAF men flying in bomber-formations to impersonate German ground-controllers: the Germans responded to this by using female ground-controllers (thinking - quite rightly - that the Allies wouldn't put women up in aircraft) - the Allied approach was to use UK-ground-based German-speaking WAAFs with transmitters/antennas to beam their fake signals over Germany.
https://en.wikipedia.org/wiki/Operation_Corona
Photo shows R1155 and AR88... !