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.
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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 Londonderry (Northern Ireland) 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, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, Film4 +1, Food Network, GB News, GREAT! movies, GREAT! movies action, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, That's TV (UK), 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 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, 250 BBC Red Button, plus 13 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, 30 E4 +1, 35 UTV +1 (UTV), | |||||
PSB3 BBCB | V max | C37 (602.0MHz) | 286m | DTG- | 2,000W |
56 5SELECT, 101 BBC One HD Northern Ireland, 102 BBC Two HD (England), 103 UTV HD (UTV), 104 Channel 4 HD NI ads, 105 Channel 5 HD, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others |
Are you trying to watch these 43 Freeview channels?
The Londonderry (Northern Ireland) 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, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, Film4 +1, Food Network, GB News, GREAT! movies, GREAT! movies action, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, That's TV (UK), 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 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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Wednesday, 17 January 2018
Transmitter engineering
1:30 PM
1:30 PM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 12:10 today to 12:41 today, BBC National DAB Radio Off Air from 07:25 today to 08:41 today. FM: Radio 1 FM Weak Signal from 12:10 today to 12:25 today, Radio 1 FM Weak Signal from 07:25 today to 08:25 today, Radio [BBC]
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Transmitter engineering
7:30 PM
7:30 PM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 12:10 today to 12:41 today, BBC National DAB Radio Off Air from 07:25 today to 08:41 today. FM: Radio 1 FM Weak Signal from 07:25 today to 08:25 today, Radio 1 FM Weak Signal from 12:10 today to 12:25 today, Radio [BBC]
link to this comment |
Transmitter engineering
10:30 PM
10:30 PM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 07:25 today to 08:41 today, BBC National DAB Radio Off Air from 12:10 today to 12:41 today. FM: Radio 1 FM Weak Signal from 12:10 today to 12:25 today, Radio 1 FM Weak Signal from 07:25 today to 08:25 today, Radio [BBC]
link to this comment |
Thursday, 18 January 2018
Transmitter engineering
4:30 AM
4:30 AM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 07:25 yesterday to 08:41 yesterday, BBC National DAB Radio Off Air from 12:10 yesterday to 12:41 yesterday. FM: Radio 1 FM Weak Signal from 07:25 yesterday to 08:25 yesterday, Radio 1 FM Weak Signal from 12:10 yest [BBC]
link to this comment |
Transmitter engineering
7:30 AM
7:30 AM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 12:10 yesterday to 12:41 yesterday, BBC National DAB Radio Off Air from 07:25 yesterday to 08:41 yesterday. FM: Radio 1 FM Weak Signal from 07:25 yesterday to 08:25 yesterday, Radio 1 FM Weak Signal from 12:10 yest [BBC]
link to this comment |
Transmitter engineering
1:30 PM
1:30 PM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 12:10 yesterday to 12:41 yesterday, BBC National DAB Radio Off Air from 07:25 yesterday to 08:41 yesterday. FM: Radio 1 FM Weak Signal from 12:10 yesterday to 12:25 yesterday, Radio 1 FM Weak Signal from 07:25 yest [BBC]
link to this comment |
Transmitter engineering
10:29 PM
10:29 PM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 07:25 yesterday to 08:41 yesterday, BBC National DAB Radio Off Air from 12:10 yesterday to 12:41 yesterday. FM: Radio 1 FM Weak Signal from 12:10 yesterday to 12:25 yesterday, Radio 1 FM Weak Signal from 07:25 yest [BBC]
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Friday, 19 January 2018
Transmitter engineering
4:30 AM
4:30 AM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 07:25 on 17 Jan to 08:41 on 17 Jan, BBC National DAB Radio Off Air from 12:10 on 17 Jan to 12:41 on 17 Jan. FM: Radio 1 FM Weak Signal from 12:10 on 17 Jan to 12:25 on 17 Jan, Radio 1 FM Weak Signal from 07:25 on 1 [BBC]
link to this comment |
Transmitter engineering
7:29 AM
7:29 AM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 07:25 on 17 Jan to 08:41 on 17 Jan, BBC National DAB Radio Off Air from 12:10 on 17 Jan to 12:41 on 17 Jan. FM: Radio 1 FM Weak Signal from 07:25 on 17 Jan to 08:25 on 17 Jan, Radio 1 FM Weak Signal from 12:10 on 1 [BBC]
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Friday, 2 February 2018
Transmitter engineering
4:29 AM
4:29 AM
LONDONDERRY transmitter - DAB: BBC National DAB Radio Off Air from 22:34 yesterday to 00:02 today. FM: Radio 1 FM Weak Signal from 22:34 yesterday to 23:46 yesterday, Radio 2 FM Weak Signal from 22:34 yesterday to 23:46 yesterday, Radio 3 FM Weak Signal from 22:34 yesterday to 23: [BBC]
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