Editing Mendip transmitting station (section)

====Analogue and digital====

=====15 November 1998 – 24 March 2010=====
Digital terrestrial television was first transmitted from the Mendip mast from 15 November 1998 using the frequency gaps between the analogue TV broadcasts. To limit interference to the analogue transmissions, power output on the digital multiplexes was low.

{| class="wikitable sortable"
!{{no2}}Frequency
!{{no2}}UHF
!{{no2}}kW
!{{no2}}Operator
!{{no2}}System
|-
|{{UK System I|ch=37}}
|37
|126
|[[Channel 5 (British TV channel)|Channel 5]]
|[[PAL]] System I
|-
|{{UK System I|ch=54}}
|54
|500
|[[Channel 4]]
|PAL System I
|-
|{{UK DVB-T|ch=55|off=pos}}
|55+
|10
|[[Digital 3&4]] (Mux 2)
|[[DVB-T]]
|-
|{{UK DVB-T|ch=56|off=pos}}
|56+
|10
|[[Arqiva]] (Mux C)
|DVB-T
|-
|{{UK System I|ch=58}}
|58
|500
|[[BBC One|BBC1 West]]
|PAL System I
|-
|{{UK DVB-T|ch=59|off=pos}}
|59+
|10
|[[BBC]] (Mux 1)
|DVB-T
|-
|{{UK System I|ch=61}}
|61
|500
|HTV West
|PAL System I
|-
|{{UK DVB-T|ch=62|off=pos}}
|62+
|10
|[[S4C Digital Networks|SDN]] (Mux A)
|DVB-T
|-
|{{UK System I|ch=64}}
|64
|500
|[[BBC Two|BBC2 West]]
|PAL System I
|-
|{{UK DVB-T|ch=65|off=pos}}
|65+
|10
|BBC (Mux B)
|DVB-T
|-
|{{UK DVB-T|ch=67}}
|67
|10
|Arqiva (Mux D)
|DVB-T
|}

=====24 March 2010 – 7 April 2010=====
On 24 March 2010 BBC2 was switched off on UHF 64 and HTV West was switched from UHF 61 for its final weeks of service. Multiplex 1 on UHF 59+ was closed and replaced by BBC A on UHF 61 (which had just been vacated by analogue HTV West). BBC A was transmitted at full power (100&nbsp;kW) and in 64QAM, 8k carriers mode from the start.

{| class="wikitable sortable"
!{{no2}}Frequency
!{{no2}}UHF
!{{no2}}kW
!{{no2}}Operator
!{{no2}}System
|-
|{{UK System I|ch=37}}
|37
|126
|[[Channel 5 (British TV channel)|Channel 5]]
|[[PAL]] System I
|-
|{{UK System I|ch=54}}
|54
|500
|[[Channel 4]]
|PAL System I
|-
|{{UK DVB-T|ch=55|off=pos}}
|55+
|10
|[[Digital 3&4]] (Mux 2)
|[[DVB-T]]
|-
|{{UK DVB-T|ch=56|off=pos}}
|56+
|10
|[[Arqiva]] (Mux C)
|DVB-T
|-
|{{UK System I|ch=58}}
|58
|500
|[[BBC One|BBC1 West]]
|PAL System I
|-
|{{UK DVB-T|ch=61}}
|61
|100
|[[BBC]] A
|DVB-T
|-
|{{UK DVB-T|ch=62|off=pos}}
|62+
|10
|[[S4C Digital Networks|SDN]] (Mux A)
|DVB-T
|-
|{{UK System I|ch=64}}
|64
|500
|[[ITV Wales & West|HTV West]]
|PAL System I
|-
|{{UK DVB-T|ch=65|off=pos}}
|65+
|10
|BBC (Mux B)
|DVB-T
|-
|{{UK DVB-T|ch=67}}
|67
|10
|Arqiva (Mux D)
|DVB-T
|}