Freeview Light on the Londonderry (Northern Ireland) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 55.003,-7.370 or 55°0'11"N 7°22'11"W |  | BT48 0JS |
The symbol shows the location of the Londonderry (Northern Ireland) transmitter which serves 37,000 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.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Londonderry (Northern Ireland) transmitter._______
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 Londonderry (Northern Ireland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: U&Yesterday, 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, DMAX, E4 Extra, YAAAS!, Film4 +1, Food Network, FRANCE 24 (in English), GREAT! action, GREAT! christmas, GREAT! movies, GREAT! romance mix, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, Quest +1, Quest Red, Really, Sky Mix, Sky News, Talking Pictures TV, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, U&Dave, U&Dave ja vu, U&Drama +1, U&W.
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 Londonderry 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 | C29 (538.0MHz) | 286m | DTG- | 2,000W |
 1 BBC One (SD) Northern Ireland, 2 BBC Two Northern Ireland, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 14 others | |||||
| PSB2 D3+4 | V max | C31 (554.0MHz) | 286m | DTG- | 2,000W |
 3 UTV (SD) (UTV), 4 Channel 4 (SD) NI ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 NI ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 UTV +1 (UTV), 71 That’s 60s, | |||||
| PSB3 BBCB | V max | C37 (602.0MHz) | 286m | DTG- | 2,000W |
 46 5SELECT, 101 BBC One HD Northern Ireland, 102 BBC Two HD Northern Ireland, 103 UTV HD (UTV), 104 Channel 4 HD NI ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others | |||||
Are you trying to watch these 44 Freeview channels?
The Londonderry (Northern Ireland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: U&Yesterday, 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, DMAX, E4 Extra, YAAAS!, Film4 +1, Food Network, FRANCE 24 (in English), GREAT! action, GREAT! christmas, GREAT! movies, GREAT! romance mix, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, Quest +1, Quest Red, Really, Sky Mix, Sky News, Talking Pictures TV, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, U&Dave, U&Dave ja vu, U&Drama +1, U&W.
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 Londonderry transmitter?
BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,052km northeast (50°)
to BBC Northern Ireland region - 46 masts.
How will the Londonderry (Northern Ireland) transmission frequencies change over time?
| 1950s-80s | 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 4 Sep 2019 | ||||
| VHF | B E T | W T | W T | B E T | W T | ||||
| C2 | BBCtvwaves | ||||||||
| C29 | BBCA | ||||||||
| C31 | C5waves | C5waves | D3+4 | ||||||
| C37 | BBCB | ||||||||
| C41 | ITVwaves | ITVwaves | ITVwaves | D3+4 | |||||
| C44 | BBC2waves | BBC2waves | BBC2waves | BBCA | |||||
| C47 | C4waves | C4waves | C4waves | BBCB | |||||
| C51tv_off | BBC1waves | BBC1waves | BBC1waves | _local | _local |
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 10 Oct 12 and 24 Oct 12.
How do the old analogue and currrent digital signal levels compare?
| Analogue 5 | 10kW | |
| Analogue 1-4 | (-4.9dB) 3.2kW | |
| BBCA, D3+4, BBCB | (-7dB) 2kW |
Local transmitter maps
Londonderry Freeview Londonderry DAB Limavady TV region BBC Northern Ireland UTVWhich companies have run the Channel 3 services in the Limavady transmitter area
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Friday, 26 April 2019
D
Darren Long5:39 PM
Hi, the sound/speech on my HD channels has been off sync for the last couple of days. The standard channels seem to be ok. This is the BT47 area.
Thanks
D
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MikeP
9:15 PM
9:15 PM
Darren Long:
The problem you report may be curable by an adjustment on your TV, but not all Freeview TVs have that facility. The partial post code you gave does not help as we need a full post code to check on any of the transmitters.
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M
Medinnersready9:22 PM
MikeP: I am experiencing the exact same problem in the BT48 area just 3 miles away from BT47. HD audio to video latency is incurable with audio delay settings yet all SD channels are fine.
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Saturday, 27 April 2019
MikeP
10:16 AM
10:16 AM
Medinnersready:
Then I suggest you contact Arqiva who operate and maintain the transmitters. Use https://www.arqiva.com/co…us/.
This website does not have any responsibility for any transmitter.
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Tuesday, 30 April 2019
M
Medinnersready1:09 AM
Darren Long: I am in BT48 and have also been having the exact same problem as you with HD channels only. I have retuned and checked all settings - more than once. Samsung TVs if that makes any difference?
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Wednesday, 1 May 2019
C
Colm Campbell9:06 PM
Medinnersready: I live in BT47, and noticed only on Friday that there is a lag in the lip sync with the HD channels, despite contacting Samsung who took me through a restart the issue still exists
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Friday, 3 May 2019
S
Stuart Harris11:40 PM
Don't know if this has any connection with the problems being reported but Londonderry has been having major engineering works carried out since 25th February and they are due for completion 20th May 2019.
Therefore the suggestion to contact Arqiva is a sensible one, with engineeers at the transmitter should be easy for them to check what is going on.
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Saturday, 11 May 2019
J
John King10:13 PM
When did the Londonderry transmitter start transmitting ITV and later Channel 4? I know the transmitter started broadcasting BBC Television from December 1957, and Strabane started ITV broadcasting in February 1963. Does this mean Strabane was designed to serve Londonderry City for ITV for a long period? Thanks for your help.
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Monday, 30 September 2024
Transmitter engineering
11:06 AM
11:06 AM
LONDONDERRY transmitter - AM: Off the air due to essential engineering from 30 Sep 10:00. . [BBC]
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Transmitter engineering
2:06 PM
2:06 PM
LONDONDERRY transmitter - AM: Reduced quality due to a fault from 30 Sep 11:09. Off the air due to essential engineering from 30 Sep 10:00 until 30 Sep 10:51. . [BBC]
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