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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Sunday, 28 October 2012
S
seamus o'doherty12:35 PM
Strabane
And Omagh has a main transmitter all to itself, Brougher Mountain, to cover 36,000 households.
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seamus's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
Patrick: Most probably you need a Freeview HD receiver for Saorview.
The reason being that there are two types of picture format used for digital broadcasts: MPEG2 and the later MPEG4.
Freeview standard definition uses MPEG2 whereas Saorview uses MPEG4. Consequently Freeview standard definition receivers don't tend to have the capability to resolve MPEG4 pictures. Freeview HD uses MPEG4 and therefore will show Saorview.
To receive Saorview you will need a separate aerial pointing to Holywell Hill which is on a bearing of 244 degrees with your aerial horizontal (elements flat). If you received RT analogue and have an appropriate aerial, then this should work for Saorview. There is no harm in seeing if it will work with your current set. Holywell Hill broadcasts on UHF channel 30, so if it has manual tuning, try tuning to C30.
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Mark: The network was designed in an era when all transmitters carried the same number of channels. Thus it didn't make any difference to whether one received from a main station or a relay.
The decision was made to allow a two-tier network which now leaves some at a disadvantage as far as range of channels is concerned. It is this decision which has produced the outcome we have rather than poor design of the network in the first place.
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K
KMJ,Derby5:39 PM
Mark: A look at the history of some of the transmitter sites explains why some of them came to be positioned where they are. The Limavady mast dates from the 1950s when it was built as a link station to receive the Divis signal and then feed the Londonderry relay. A low power relay at Maddybenny More used to supply 405 line BBC TV and BBC FM radio to Coleraine. The BBC FM services were transfered to Limavady in 1986, since then a local commercial FM transmitter brought the Maddybenny mast back into use and a BBC national DAB transmitter has been added. The ITA built the Black Mountain and Strabane masts to serve nearly all of Ulster with 405 line ITV. However it was not possible to serve the same area at UHF from Strabane as had been achieved at VHF, hence the use of several existing BBC masts (Limavady, Londonderry and Brougher Mountain) to serve the area.
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P
Patrick6:06 PM
Londonderry
Ok Dave,looks like i need a tv with full HD as the one i have is HD ready and won't pick up Saorview.Many thanks for clearing this up for me.Take care, Patrick
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Patrick's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
Monday, 29 October 2012
D
David Burke10:55 AM
BT47 3TJ
Can you please help
I have 3 Triax Freeview HD boxes and before switchover I was watching RTE Saorview. After re-tuning I am receiving all Freeview from Londonderry Transmitter but no Saorview.
I have 2 eternal roof mounted ariels, 1 for North and 1 for RTE.
What am I doing wrong?
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P
Patrick11:19 AM
Londonderry
I think you have to manually tune them in on channel 30.Hope this helps Dave.
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Patrick's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
David Burke: Have you tried doing a manual tune on the UHF channel of the Saorview transmitter you are using? Which Saorview transmitter is it? If you don't know, what direction is your RT aerial pointing and is it vertical (elements up/down) or horizontal (elements flat)?
If it's horizontal and pointing north-west, then it is directed to Holywell Hill which is on UHF channel 30. When you scan the mode should be set to DVB-T rather than DVB-T2.
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T
TERRY HARVEY7:56 PM
Londonderry
MY AERIAL IS RECEIVING A VERY GOOD SIGNAL FROM THE LONDONDERRY TRANSMITTER BUT CANT GET ALL FREEVIEW PROGRAMS WHAT CAN I DO TO REMEDY THIS PROBLEM----mr t harvey
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TERRY's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
TERRY HARVEY: If you read above, you will see that it is a contenious issue that the Derry transmitter on Sheriff Mountain does not broadcast all channels. There are other areas that only receive the Public Service channels as not all transmitters broadcast them.
In your case, you "may" be lucky, albeit that you will have to fork out for a new aerial. The only way you will receive all channels is "if" you can receive them from Limavady.
Limavady is on a bearing of 78 degrees and aerials will be horizontal (elements flat). You may find that others around you have switched to Limavady so as to get the full service.
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