GCHQ: The Secret Wireless War 1900—86

Beskrivelse

GCHQ: The Secret Wireless War 1900—86.

Coronet Books, Hodder and Stoughton, Sevenoaks 1987, senere utgave, 8vo, orig. omslag, 400 s., engelsk tekst, fotoplansjer.

«Here, told for the first time, is the story of GCHQ, the whole history of signals intelligence — that most secret and least understood weapon in the modern espionage arsenal. From the first moment when Marconi succeeded in transmitting a radio signal across the Channel, Britain has been engaged in a secret wireless war, first with the Kaiser, then with Hitler and the Soviet Union. All GCHQ’s functions and disciplines are described, including direction-finding, code breaking, interception and traffic analysis.» — fra bakomslaget