Mendip transmitting station
Frequency UHF kW Operator System
562.000 MHz 32 100 BBC A DVB-T
570.000 MHz 33 100 Arqiva A DVB-T
690.000 MHz 48 100 SDN DVB-T
722.000 MHz 52 100 Arqiva B DVB-T
738.000 MHz 54 100 Digital 3 & 4 DVB-T
770.000 MHz 58 100 BBC B DVB-T2
Output -- Television
7 April 2010 – 28 September 2011 [ edit ] Following the completion of analogue TV shutdown on 7 April 2010 , Mendip transmitted all of its higher powered multiplexes at 100 kW . From this date until the second-stage switchover of 28 September 2011 the frequency allocation was : Frequency UHF kW Operator System 738.000 MHz 54 100 Digital 3 & 4 DVB-T 754.166 MHz 56+ 10 Arqiva A DVB-T 770.000 MHz 58 100 BBC B DVB-T2 794.000 MHz 61 100 BBC A DVB-T 802.166 MHz 62+ 10 SDN DVB-T 842.000 MHz 67 26 Arqiva B DVB-T 28 September 2011 – 28 March 2012 [ edit ] With the completion of digital switchover at Oxford , all multiplexes could be moved to their final channel allocations with the exception of Arqiva A. SDN increased to half its full power output ( 50 kW ) . Frequency UHF kW Operator System 690.000 MHz 48 50 SDN DVB-T 722.000 MHz 52 25.7 Arqiva B DVB-T 738.000 MHz 54 100 Digital 3 & 4 DVB-T 770.000 MHz 58 100 BBC B DVB-T2 794.000 MHz 61 100 BBC A DVB-T 842.000 MHz 67 26 Arqiva A DVB-T 28 March 2012 – 26 March 2013 [ edit ] On 28 March 2012 Arqiva A moved to its final channel allocation at UHF 56 , after the completion of digital switchover at Salisbury . Arqiva A and B and SDN also increased to full power ( 100 kW ) on this date . [ 6 ] Frequency UHF kW Operator System 690.000 MHz 48 100 SDN DVB-T 722.000 MHz 52 100 Arqiva B DVB-T 738.000 MHz 54 100 Digital 3 & 4 DVB-T 754.000 MHz 56 100 Arqiva A DVB-T 770.000 MHz 58 100 BBC B DVB-T2 794.000 MHz 61 100 BBC A DVB-T 27 March 2013 – 27 February 2018 [ edit ] BBC A moved from UHF 61 to UHF 49 to allow for the clearance of the 800 MHz band for 4G LTE mobile services . [ 7 ] [ 8 ] Frequency UHF kW Operator System 690.000 MHz 48 100 SDN DVB-T 698.000 MHz 49 100 BBC A DVB-T 722.000 MHz 52 100 Arqiva B DVB-T 738.000 MHz 54 100 Digital 3 & 4 DVB-T 754.000 MHz 56 100 Arqiva A DVB-T 770.000 MHz 58 100 BBC B DVB-T2 27 February 2018 - 4 April 2019 [ edit ] Arqiva A has moved from UHF 56 to UHF 33 for the start of the 700MHz clearance programme at Mendip . Frequency UHF kW Operator System 570.000 MHz 33 100 Arqiva A DVB-T 690.000 MHz 48 100 SDN DVB-T 698.000 MHz 49 100 BBC A DVB-T 722.000 MHz 52 100 Arqiva B DVB-T 738.000 MHz 54 100 Digital 3 & 4 DVB-T 770.000 MHz 58 100 BBC B DVB-T2  4 April 2019 – 5 June 2019 [ edit ] BBC A has moved from UHF 49 to UHF 32 as part of the 700MHz clearance programme at Mendip .
The Mendip transmitting station is a broadcasting and telecommunications facility on the summit of Pen Hill, part of the Mendip Hills range in Somerset, England, at 305 metres (1,001 ft) above sea level. The station is in St Cuthbert Out civil parish in Mendip district, approximately 2 miles (3.2 km) northeast of the centre of Wells. It has a 281.6 metres (924 ft) tall mast, which was built in 1967 and weighs around 500 tonnes, and is the tallest structure in South West England. The mast broadcasts digital television, FM analogue radio and DAB digital radio, and had broadcast analogue colour television from 1967 until 2010. It has become a Mendip landmark, providing a method of identifying the hills from a distance.