John Langcake was sent to Marconi College in Chelmsford to train with the Marconi S254 transmitter. The college didn't have one so he took an SR1000 training course with Finnish Air Force Officers and Senior Non-Commissioned Officers. This photo was likely taken in 1962.

John is seated on the far left. The man beside him is named George and the man behind him is named Vino. The Major is standing in the centre of the back row and Captain Folstrom is seated on the far right.