This Saturday I found myself at the RSGB’s National Radio Centre within Bletchley Park, former Second World War home of the Government Code and Cypher School (now GCHQ) for the third year running.
This Saturday I found myself at the RSGB’s National Radio Centre within Bletchley Park, former Second World War home of the Government Code and Cypher School (now GCHQ) for the third year running.