Freeview Light on the Cwm Twrch (Powys, Wales) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 51.780,-3.799 or 51°46'49"N 3°47'56"W |  | SA9 2TU |
The symbol shows the location of the Cwm Twrch (Powys, Wales) transmitter which serves 2,100 homes. The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.
Are there any planned engineering works or unexpected transmitter faults on the Cwm Twrch (Powys, Wales) mast?
CWM TWRCH transmitter - Freeview: Off the air due to essential engineering from 28 Sep 13:30 until 28 Sep 14:24. Off the air due to a fault from 27 Sep 08:00 until 27 Sep 08:59. . 
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
H/V: aerial position (horizontal or vertical)
The Cwm Twrch (Powys, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, CITV, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, YAAAS!, Film4 +1, Food Network, GB News, GREAT! movies, Great! Movies Action, GREAT! romance, HGTV, HobbyMaker, HorrorXtra, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Talking Pictures TV, TCC, That's 70s, That's TV , Together TV, W, Yesterday +1.
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which Freeview channels does the Cwm Twrch transmitter broadcast?
If you have any kind of Freeview fault, follow this Freeview reset procedure first.Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
| Mux | H/V | Frequency | Height | Mode | Watts |
| PSB1 BBCA | V max | C24 (498.0MHz) | 159m | DTG- | 3W |
 1 BBC One (SD) Wales, 2 BBC Two Wales, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 13 others | |||||
| PSB2 D3+4 | V max | C21+ (474.2MHz) | 159m | DTG- | 3W |
 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Wales), | |||||
| PSB3 BBCB | V max | C27 (522.0MHz) | 159m | DTG- | 3W |
 46 5SELECT, 101 BBC One HD Wales, 102 BBC Two HD Wales, 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 110 Channel 4 HD (Wales), 204 CBBC HD, 205 CBeebies HD, plus 1 others | |||||
Are you trying to watch these 45 Freeview channels?
The Cwm Twrch (Powys, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, CITV, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, YAAAS!, Film4 +1, Food Network, GB News, GREAT! movies, Great! Movies Action, GREAT! romance, HGTV, HobbyMaker, HorrorXtra, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Talking Pictures TV, TCC, That's 70s, That's TV , Together TV, W, Yesterday +1.
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the Cwm Twrch transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 50km southeast (129°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 51km southeast (135°)
to ITV Wales region - 206 masts.
How will the Cwm Twrch (Powys, Wales) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 31 Dec 2019- | |||||
| A K T | A K T | A K T | A K T | A K T | |||||
| C21 | BBC1waves | BBC1waves | BBC1waves | +D3+4 | D3+4 | ||||
| C24 | ITVwaves | ITVwaves | ITVwaves | BBCA | BBCA | ||||
| C27 | BBC2waves | BBC2waves | BBC2waves | BBCB | BBCB | ||||
| C31 | C4waves | C4waves | C4waves |
tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 26 Aug 09 and 23 Sep 09.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 16W | |
| BBCA, D3+4, BBCB | (-7dB) 3.2W |
Which companies have run the Channel 3 services in the Carmel transmitter area
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Saturday, 5 January 2019
Transmitter engineering
5:09 AM
5:09 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air from 04:12 on 03 Jan to 04:53 on 03 Jan, HD Digital TV Off Air from 04:12 on 03 Jan to 04:53 on 03 Jan. [BBC]
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Friday, 26 April 2019
Transmitter engineering
5:09 AM
5:09 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 today, HD Digital TV Off Air; DSO related from 00:01 today. [BBC]
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Transmitter engineering
8:09 AM
8:09 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 today to 05:15 today, HD Digital TV Off Air; DSO related from 00:01 today to 05:15 today. [BBC]
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Saturday, 27 April 2019
Transmitter engineering
5:09 AM
5:09 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 yesterday to 05:15 yesterday, HD Digital TV Off Air; DSO related from 00:01 yesterday to 05:15 yesterday. [BBC]
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Sunday, 28 April 2019
Transmitter engineering
5:09 AM
5:09 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 on 26 Apr to 05:15 on 26 Apr, HD Digital TV Off Air; DSO related from 00:01 on 26 Apr to 05:15 on 26 Apr. [BBC]
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Thursday, 18 July 2019
Transmitter engineering
11:08 AM
11:08 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 yesterday to 04:30 yesterday, BBC Digital TV Off Air; DSO related from 09:03 yesterday to 11:13 yesterday, BBC Digital TV Off Air; DSO related from 14:01 yesterday to 14:08 yesterday, HD Digital TV [BBC]
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Friday, 19 July 2019
Transmitter engineering
5:08 AM
5:08 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 00:01 on 17 Jul to 04:30 on 17 Jul, BBC Digital TV Off Air; DSO related from 09:03 on 17 Jul to 11:13 on 17 Jul, BBC Digital TV Off Air; DSO related from 14:01 on 17 Jul to 14:08 on 17 Jul, HD Digital TV [BBC]
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Transmitter engineering
5:08 PM
5:08 PM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 09:03 on 17 Jul to 11:13 on 17 Jul, BBC Digital TV Off Air; DSO related from 00:01 on 17 Jul to 04:30 on 17 Jul, BBC Digital TV Off Air; DSO related from 14:01 on 17 Jul to 14:08 on 17 Jul, HD Digital TV [BBC]
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Saturday, 20 July 2019
Transmitter engineering
5:08 AM
5:08 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 14:01 on 17 Jul to 14:08 on 17 Jul, BBC Digital TV Off Air; DSO related from 00:01 on 17 Jul to 04:30 on 17 Jul, BBC Digital TV Off Air; DSO related from 09:03 on 17 Jul to 11:13 on 17 Jul, HD Digital TV [BBC]
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Transmitter engineering
11:08 AM
11:08 AM
CWM TWRCH transmitter - Freeview: BBC Digital TV Off Air; DSO related from 09:03 on 17 Jul to 11:13 on 17 Jul, BBC Digital TV Off Air; DSO related from 14:01 on 17 Jul to 14:08 on 17 Jul, BBC Digital TV Off Air; DSO related from 00:01 on 17 Jul to 04:30 on 17 Jul, HD Digital TV [BBC]
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