Thanks for the replies gents, all info gratefully received! It always makes me wonder with the often high powered signals being transmitted to and from the aircraft in such roles, especially those counter signals to block/dissuade the recon aircraft, if the crews were statistically more likely to get cancer(s) in later life ? There were stories of the Russians firing high powered beams at embassies to damage equipment and personnel in certain locales during the cold war.
SHJ