The station is owned and operated by Arqiva (which acquired National Grid Wireless, previously Crown Castle).

Until 2008 a GRP aerial cylinder, containing the analogue television transmitting antennas, was mounted at the top of the mast, bringing the total height of the structure to 305 metres (1,001 ft).

The mast can be seen from as far away as Puriton during the day, and the aircraft warning lights make it visible at night from most of the Somerset Levels and from areas of South Wales, such as the high ground near the Wenvoe transmitting station.

[citation needed] Mendip was configured as a C/D group transmitter when it entered service with analogue PAL transmissions.

The mast broadcasts digital television over a large area of the west of England, including Somerset, Wiltshire, Bristol, southern Gloucestershire, and northern Dorset.

Northern Gloucestershire – such as most of Cheltenham and Tewkesbury – is outside the coverage area, instead receiving signals from the Ridge Hill transmitter in Herefordshire.

[7][8] Digital terrestrial television was first transmitted from the Mendip mast from 15 November 1998 using the frequency gaps between the analogue TV broadcasts.

Following the completion of analogue TV shutdown on 7 April 2010, Mendip transmitted all of its higher powered multiplexes at 100 kW.