It consists of a 25 m self-supporting lattice mast standing on a hillside which is itself about 180 m above sea level (about 150 m above the town).

Briton Ferry transmitter re-radiates the signal received off-air from Kilvey Hill about 15 km to the west.

When it came, the digital switchover process for Briton Ferry duplicated the timing at Kilvey Hill with the first stage taking place on Wednesday 12 August 2009 and the second stage was completed on Wednesday 9 September 2009, with the Kilvey Hill transmitter-group becoming the first in Wales to complete digital switchover.

After the switchover process, analogue channels had ceased broadcasting permanently and the Freeview digital TV services were radiated at an ERP of 4 W each.

The UK's digital switchover commenced at Kilvey Hill (and therefore at Briton Ferry and all its other relays) on 12 August 2009.