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Freeview Light on the Londonderry (Northern Ireland) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps55.003,-7.370 or 55°0'11"N 7°22'11"Wsa_postcodeBT48 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.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
_______

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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 V max
C29 (538.0MHz)286mDTG-2,000W
Channel icons
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)286mDTG-2,000W
Channel icons
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)286mDTG-2,000W
Channel icons
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

H/V: aerial position (horizontal or vertical)

Are you trying to watch these 44 Freeview channels?

the effected channels
the effected channels
the effected channels
the effected 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?

regional news image
BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,052km northeast (50°)
to BBC Northern Ireland region - 46 masts.
regional news image
UTV Live 0.6m homes 2.5%
from Belfast BT7 1EB, 1,052km northeast (50°)
to UTV region - 46 masts.

How will the Londonderry (Northern Ireland) transmission frequencies change over time?

1950s-80s1984-971997-981998-20122012-134 Sep 2019
VHFB E TW TW TB E TW T
C2BBCtvwaves
C29BBCA
C31C5wavesC5wavesD3+4
C37BBCB
C41ITVwavesITVwavesITVwavesD3+4
C44BBC2wavesBBC2wavesBBC2wavesBBCA
C47C4wavesC4wavesC4wavesBBCB
C51tv_offBBC1wavesBBC1wavesBBC1waves_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

Which companies have run the Channel 3 services in the Limavady transmitter area

Oct 1959-May 2006Ulster Television
May 2006-Dec 2014UTV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Londonderry was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Comments
Friday, 26 April 2019
D
Darren Long
5:39 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

link to this comment
Darren Long's 1 post GB flag
MikeP
sentiment_very_satisfiedPlatinum

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.



link to this comment
MikeP's 3,056 posts GB flag
M
Medinnersready
9:22 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.

link to this comment
Medinnersready's 2 posts GB flag
Saturday, 27 April 2019
MikeP
sentiment_very_satisfiedPlatinum

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.



link to this comment
MikeP's 3,056 posts GB flag
Tuesday, 30 April 2019
M
Medinnersready
1:09 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?

link to this comment
Medinnersready's 2 posts GB flag
Wednesday, 1 May 2019
C
Colm Campbell
9:06 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

link to this comment
Colm Campbell's 1 post GB flag
Friday, 3 May 2019
S
Stuart Harris
sentiment_satisfiedBronze

11:40 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.

link to this comment
Stuart Harris's 34 posts GB flag
Saturday, 11 May 2019
J
John King
10:13 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.

link to this comment
John King's 2 posts GB flag
Monday, 30 September 2024
Transmitter engineering
sentiment_satisfiedGold

11:06 AM

LONDONDERRY transmitter - AM: Off the air due to essential engineering from 30 Sep 10:00. . [BBC]

link to this comment
Transmitter engineering's 1,917 posts GB flag
Transmitter engineering
sentiment_satisfiedGold

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]

link to this comment
Transmitter engineering's 1,917 posts GB flag
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Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

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If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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