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: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, YAAAS!, Film4 +1, Food Network, GREAT! movies, Great! Movies Christmas 1, Great! Movies Action, Great! Movies Christmas, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Quest +1, Quest Red, RealityXtra, Really, Sky News, Talking Pictures TV, TCC, That's 60s, That's 80s, 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, 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), | |||||
| 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: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, YAAAS!, Film4 +1, Food Network, GREAT! movies, Great! Movies Christmas 1, Great! Movies Action, Great! Movies Christmas, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Quest +1, Quest Red, RealityXtra, Really, Sky News, Talking Pictures TV, TCC, That's 60s, That's 80s, 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, 24 October 2012
pat: HD channels are broadcast from all transmitters including Derry which is on Sheriff Mountain.
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G
gerry7:38 PM
Londonderry
Returned and now getting - 1 BBC One Northern Ireland, 2 BBC Two Northern Ireland, 7 BBC Three, 9 BBC Four, 70 CBBC Channel, 71 CBeebies, 80 BBC News, 81 BBC Parliament, 301 301, 302 302, plus 14 others 3 UTV (UTV), 4 Channel 4 NI ads, 5 Channel 5 NI ads, 6 ITV 2, 13 Channel 4+1 NI ads, 14 More 4, 28 E4, 33 UTV+1 (UTV), plus 3 others 15 Film 4, 18 4Music, 19 Yesterday, 21 VIVA, 24 ITV 4, 47 4seven, 83 Al Jazeera English, 85 Russia Today English, plus 22 others
as a digital multiplex transmitted on frequency C49 (698.0MHz) from 379m datum.
Have not moved aerial what do you suggesst best thing to do lost some of the channels i was watching earlier From Limavady Transmitter?
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gerry's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
P
pat7:42 PM
Londonderry
Dave all my channels are 576i not 1080i.
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pat's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
P
pat8:01 PM
Londonderry
Does anyone know when the Derry transmitter will start broadcasting any channels on HD.
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pat's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
P
pat9:05 PM
Londonderry
sorry all sorted TV aerial problem
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pat's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
M
Mark10:35 PM
Seems to be some smart people on here that know things about digital tv. can anyone explain why Northern Irelands second biggest city only gets a few freeview channels only getting BBC1, 2, 3 ,4, UTV, CH4, CH5, ITV, 4+1, More4, E4 and UTV+1?
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Mark: It is those who cannot receive from a full-service transmitter who will be unable to watch the Commercial channels (those that don't broadcast from the Sheriff Mountain transmitter).
The reason for this is because there are two types of broadcaster: Public Service (PSB) and Commercial (COM).
The Commercial multiplexes (each multiplex is a single signal that carries multiple services) cover about 90% of the UK population from 81 of the largest transmitters (largest by viewer population). The cost for them to broadcast from the other 1,000 or so smaller relays would roughly double their cost of transmission whilst only adding 8.5% of the population to their a potential viewerbases.
Their objective is show advertising which they sell. They want to get as many viewers as possible for lowest possible cost. Doubling the cost of transmission to increase potential reach by around 10% doesn't make sense to them. They operate purely for profit and have no obligation to provide a "Public Service".
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Thursday, 25 October 2012
P
pat1:42 AM
Londonderry
Why are we not a full-service transmitter after all we are second biggest city in northern Ireland, maybe Derry is not large enough and Limavady is.
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pat's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
M
Mark11:31 AM
Londonderry
Yes that is my point why wasn't the transmitter put closer to Derry. And is it possible that we will ever get a few more channels or is it maxed out?
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Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
pat, Mark: I have already answered your questions above in the posting of Wednesday 24 October 2012 10:46PM.
Unless you can receive from a full-service transmitter (which is probably only Limavady, if any) then you will only ever have PSB channels.
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