Fred, Just a bit of a guess on my part, and also assuming that the "DC3 Dakota" aircraft you refer to was in fact a relatively modern C-47 (albeit in RAF service as a Dakota), then I would presume that the radio equipment in the Dakota would be a generation (well, maybe half a generation!) ahead of the stuff in the other aircraft mentioned, and also much more extensive. However, if it were a very early model of DC-3 with original equipment, then it might not be much of an improvement. Harrows, Wellingtons and Whitleys were of that generation fitted with 1082/1083 MF gear, plus TR 9 R/T, and SBA, etc. There was also a lot of fancy navigation equipment and other special types being introducedby both RAF as well as the Americans, including higher VHF frequencies, airfield approach equipment, IFF, LORAN (American), and so forth, which would tend to make an old-time operator blink on first seeing the suite provided. The equipment list for a standard C-47 in 1942/43 included some 31 items of equipment, from intercom to filter boxes, frequency meters, aerial reels, radio compass, manual loop antennae, marker beacon receiver, and complete "Liaison" (basically long range communications based on Morse), and "Command" (voice) sets. However WW2 radio communications are only a minor interest of mine, so will cheerfully defer to any more knowledgeable and qualified Board members.