Freeview on the Mendip transmitter

Mendip transmitter: (Google Earth) (Live Maps) (Google maps) GPS: 51.2367,-2.6259

This transmitter has no current reported problems
Please click on a transmitter
° Tenby
° Tenby
° Merthyr Tydfil
° Merthyr Tydfil
° Carmarthen
° Carmarthen
° Basingstoke
° Basingstoke
° Newbury
° Newbury
° Fairford
° Fairford
° Chepstow
° Chepstow
° Newport
° Newport
° Weymouth
° Weymouth
° Yeovil
° Yeovil
° Tiverton
° Tiverton
° Bideford
° Bideford
° Exmouth
° Exmouth
° Minehead
° Minehead
° Swansea
° Swansea
° Aldershot
° Aldershot
° Swindon
° Swindon
° Poole
° Poole
° Reading
° Reading
° Portsmouth
° Portsmouth
° Bournemouth
° Bournemouth
° Salisbury
° Salisbury
° Taunton
° Taunton
° Bath
° Bath
° Gloucester
° Gloucester
° Slough
° Slough
° Barnstaple
° Barnstaple
° Exeter
° Exeter
° Cardiff
° Cardiff
° Bristol
° Bristol
° Oxford
° Oxford
° Southampton
° Southampton

The square shows the location of the Mendip transmitter. The Freeview reception area is shown in pink. The Mendip transmitter covers 720,000 homes.

Freeview on Mendip requires aerial group/position E/WH, transmitter ERP 9166W, at 560m -
 transmitterTransmitter
BBC one region or nation
itv-1 region or nation
Freeview area
Analogue area
solidexclusive in this region
lighterprimarily in region
lightest overlap area with another region

Freeview transmissions on Mendip

MuxEffective power levelRatingModeWatts
1
Maximum16QAM-2k
18Mb/s
MPEG2
10,000

1 BBC One (West), 2 BBC Two (England), 7 BBC Three, 70 CBBC Channel, 80 BBC News, 105 BBC Interactive text, on C59+ (778.2MHz)
2
Low64QAM-2k
24Mb/s
MPEG2
10,000

3 ITV1 (HTV West), 4 Channel 4, 5 FIVE, 6 ITV2, 13 Channel 4+1, 14 More4, 28 E4, 33 ITV2+1, 100 Teletext, 101 Teletext Holidays, 104 Teletext on 4, 728 Heart, on C55+ (746.2MHz)
A
Low64QAM-2k
24Mb/s
MPEG2
10,000

10 ITV3, 16 QVC, 20 Virgin 1, 23 Bid TV, 30 FIVER, 31 FIVE USA, 38 Quest, 39 TOPUP Stream 2, 40 TOPUP Stream 3, 72 CITV, 84 CNN International, 103 Teletext Casino, 712 Smash Hits! Radio, on C62+ (802.2MHz)
B
Maximum16QAM-2k
18Mb/s
MPEG2
10,000

0 Community, 9 BBC Four, 71 CBeebies, 81 BBC Parliament, 105 BBC Interactive text, 301 BBCi 301, 302 BBCi 302, 303 BBC Sport Interactive, 700 BBC Radio 1, 701 1Xtra BBC, 702 BBC Radio 2, 703 BBC Radio 3, 704 BBC Radio 4, 705 BBC Radio 5 Live, 706 BBC Radio 5 Live Sports Extra, 707 BBC Radio 6 Music, 708 BBC Radio 7, 709 BBC Asian Network, 710 BBC World Service, on C65+ (826.2MHz)
C
Maximum16QAM-2k
18Mb/s
MPEG2
10,000

11 Sky3, 19 Dave, 29 E4+1, 37 price-drop tv, 82 Sky News, 83 Sky Sports News, 108 Sky Text, 108 NHS Direct, 723 talkSPORT, 725 Premier Christian Radio, 727 Absolute Radio, on C56+ (754.2MHz)
D
Maximum16QAM-2k
18Mb/s
MPEG2
10,000

12 Yesterday, 15 Film4, 18 4Music, 21 VIVA, 22 Ideal World, 24 ITV4, 25 Dave ja vu, 35 Virgin 1+1, 41 TOPUP Anytime4, 43 Gems TV, 45 Lottery Xtra, 85 Russia Today, 711 The Hits radio, 713 Kiss radio, 714 Heat Radio, 715 Magic radio, 716 Q radio, 718 Smooth radio, 722 Kerrang! radio, 36 Create and Craft, on C67 (842.0MHz)


To receive Freeview from the Mendip transmitter you will require an aerial of group E/W positioned horizontally. This transmitter is 560 metres above sea-level, and transmits at 9,166 watts.

Full list of Freeview transmitters.

Digital switchover process details

Digital switchover happens over a number of weeks, this is to allow people in areas who where unable to use Freeview before switchover time to purchase equipment before the analogue service is terminated.

Wednesday 24th March 2010

ITV-1 swaps to C64. BBC TWO C61 closes. PSB1 starts on C61.

Wednesday 7th April 2010

BBC One C58 closes. BBC Two C64 closes. Channel 4 C54 closes. FIVE C37 closes. Mux 1 C59 closes. Mux 2 C55 closes. Mux A C62 closes. Mux B C65 closes. Mux C C56 closes. Mux D C67 closes.
Freeview power increases from 10,000 W to 100,000 W, 10 times stronger.
PSB2 starts on C54. COM4 starts on C48. PSB3 starts on C58. COM5 starts on C52. COM6 starts on C56. NEW8 starts on C59. NEW7 starts on C55.

See also Mendip transmitter - analogue shutdown schedule.

Self-help relays

Self-help relays are transmitters that are not owned by the broadcasting and transmission companies, but by the local users. An active deflector (AD) re-transmits the analogue broadcasts on the same frequencies as the original broadcasts, while a transposer (T) transmits the received broadcasts on different frequencies.
Relay nameTypeLocationNotes
CHEDDART15 km E Weston-super-Mare1674 homes
LUCCOMBEAD6 km w Minehead38 homes

Transmission frequencies

Before Sunday 15th November 1998

C37*C54C58C61C64
FIVEC4BBC OneITV1BBC TWO

Sunday 15th November 1998 to Wednesday 24th March 2010

C37*C54C55+C56+C58C59+C61C62+C64C65+C67
FIVEC4Mux 2Mux CBBC OneMux 1ITV1Mux ABBC TWOMux BMux D

After Wednesday 7th April 2010

C48C52C54C55C56C58C59C61
Mux SDNMux ArqAMux D3+4Mux NEW7Mux ArqBMux BBCBMux NEW8Mux BBCA

Colour bands denote aerial groups: Red:A Yellow:B Green:C/D Brown:E Grey:K Black:Wideband

Notes

'Out of group' frequencies are marked with a star. Analogue power output 500,000 Watts, post switchover average digital multiplex output will be 75,000 Watts.

To receive signals from this transmitter, the aerial must be mounted for horizontal polarization – the elements going from left to right.

The first designation for the post-switchover multiplexes was: multiplexes 1 and 2 were prefixed "PSB" (for Public Service Broadcasting) and multiplex B becomes "PSB3". The commercial multiplexes A, C and D became "COM4", "COM5" and "COM6". As switchover the PSB1, PSB3, COM5 and COM6 will switch to 64QAM mode transmission, so all multiplexes will transmit in the 64QAM (2/3) 8k mode.

However, Ofcom now calls the PSB multiplexes BBCA, D3+4 and BBCB, the commercial ones are SDN, ArqA and ArqB. In addition the BBCB multiplex will now, from December 2009, be used for the 256QAM DVB-T2 high definition service. This multiplex MAY also be provided from some transmitters before switchover.

Before digital group C/D will not receive "five". (Aerial group appears to be: E W). Upgrade to Wideband aerial requried to watch all Freeview channels during dual running of analogue and digital television. After switchover an existing group C/D aerial will provide all digital TV services.

itv1 - Mendip transmitter area*

DateIncumbent ITV company
14th Jan 1958 to July 1968Television Wales and the West (TWW)
July 1968 to dateHarlech Television
1st Feb 1983 to 31st Dec 1992TV-am (breakfast)
1st Jan 1993 to dateGMTV (breakfast)
NoteFor digital switchover this region is now known as HTV West.
* The Mendip transmitter was not an original ITV VHF 405-line transmitter: the historical information shown above includes the details of the company reponsible for the Mendip transmitter when it began transmission.
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