South Yorkshire Times, February 16, 1957

Mr Alfred Ulley passes shunting instructions to the driver of a diesel shunting locomotive over the radio telephone installed in his signal box in the Eastern Region’s Wath Marshalling Yard.

Two way V.H.F. radio telephony has been installed between the two himp signal boxes “A” and “B” and the diesel shunting locomotives in the Marshalling Yard.

The radio telephone improves control over shunting movements, allows more positive instructions to be given, and enables shunting efficiency to be maintained under adverse weather conditions. The two signal boxes operate on different frequencies.