Harry Griffiths' career as a "Radio Security Service" listener

<p dir="ltr">Father, Harry Griffiths, served in WW2 as a radio operator. </p><p>He was a member of the Radio Security Service based in Cornwall listening to the German Secret Service, 1939-1945. The station at which he was based was a Bletchley Park outstation. They also listened to radio intercepts of Italian and Russian Secret Service broadcasts. Operated 24/7 and could intercept morse code transmissions from the Abwehr at a rate of well over 35 words (per minute?), perhaps. </p><p>Seven stations were based in this area which were, literally, 'Ulstrasecret' (ULTRA listening stations). Stations were part of B.P. (???)</p><p>Everything done was most secret of secrets. Picked up messages that, most of the time, his colleagues wouldn't have a clue (could not understand).</p><p>He died before medals came out - wanted to tell but died before he could fully explain.</p><p>Book: "Listening to the Enemy" [Photograph of photo on front cover]</p>