Navigation Radio beams Battle of Britain Anson

🙂 Here is a really rare piece of Wartime radio to feast your eyes on, its an S27 Hallicrafters Ultra High requency radio reciver. This actual radio was used to detect german beams designed to guide thier bombers toi the target during the Battle of Britain and early war. I found the following info. Churchill ordered a flight to try to detect the beams. Avro Anson’s were equipped with an American Hallicrafters S-27 (then the only known receiver capable of receiving the 40 MHz signal) The Anson was far from ideal being slow, cold and extremely noisy. It was the only aircraft capable of carrying the radio set and the motor-generator set required to power it that could be spared. The motor-generator was required because the S-27 was a mains powered set but the Anson only had a 28 volt DC electrical system. Can anyone add any history? I have seen a video about this radio and shows it set up in an Anson but i don’t know the title has anyone seen it or know the title?