ww ii

I am looking for information on the special duty HP Halifax avionics setup and the associated antenna array. I am particularly interested in the role of an odd whip antenna installed just below the navigator's stand, which can be seen on the images from the links below...

I have a technical question related to the HF radio sets used by the WW II Soviet intelligence rings in Europe, particularly by Die Rote Kapelle in Germany and Die Rote Drei in Switzerland. Could the Soviets have used US-designed and Soviet-made Jack (Dzhek) or the RPO-4 HF transceivers with...