Freeview Light on the Castlederg (Northern Ireland) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 54.694,-7.587 or 54°41'39"N 7°35'14"W |  | BT81 7RW |
The symbol shows the location of the Castlederg (Northern Ireland) transmitter which serves 1,200 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 Castlederg (Northern Ireland) transmitter._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
H/V: aerial position (horizontal or vertical)
The Castlederg (Northern Ireland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4Music, 4seven, 5SELECT, 5STAR, 5USA, Aljazeera English, BBC Four HD, BBC News HD, Blaze, Blaze +1, CBeebies HD, CBS Drama, CBS Justice, CBS Reality, Together TV +1, Challenge, Channel 5 +1, CITV, Dave, Dave ja vu, DMAX, Drama, E4 +1, Film4 +1, Food Network, Forces TV, FreeSports, HGTV, Horror Channel, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, More4 +1, NOW 80s, Paramount Network, PBS America +1, pick, Quest +1, Quest Red, Quest Red +1, Really, RT HD, Sky Arts, Sky News, Smithsonian Channel, Sony Movies Action, Talking Pictures TV, TCC, Together TV, 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 Castlederg 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 | C40 (626.0MHz) | 89m | DTG-3 | 2W |
 1 BBC One (SD) Northern Ireland, 2 BBC Two Northern Ireland, 9 BBC Four, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 601 BBC Red Button, plus 13 others | |||||
| PSB2 D3+4 | V max | C43 (650.0MHz) | 89m | DTG-3 | 2W |
 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, 24 ITV4, 33 UTV +1 (UTV), | |||||
| PSB3 BBCB | V max | C46 (674.0MHz) | 89m | DTG-6 | 2W |
 74 Shopping Quarter , 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, 204 CBBC HD, plus 1 others | |||||
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
H/V: aerial position (horizontal or vertical)
Are you trying to watch these 51 Freeview channels?
The Castlederg (Northern Ireland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4Music, 4seven, 5SELECT, 5STAR, 5USA, Aljazeera English, BBC Four HD, BBC News HD, Blaze, Blaze +1, CBeebies HD, CBS Drama, CBS Justice, CBS Reality, Together TV +1, Challenge, Channel 5 +1, CITV, Dave, Dave ja vu, DMAX, Drama, E4 +1, Film4 +1, Food Network, Forces TV, FreeSports, HGTV, Horror Channel, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, More4 +1, NOW 80s, Paramount Network, PBS America +1, pick, Quest +1, Quest Red, Quest Red +1, Really, RT HD, Sky Arts, Sky News, Smithsonian Channel, Sony Movies Action, Talking Pictures TV, TCC, Together TV, 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 Castlederg transmitter?
BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,050km northeast (50°)
to BBC Northern Ireland region - 46 masts.
How will the Castlederg (Northern Ireland) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 4 Sep 2019 | |||||
| C/D E | C/D E | C/D E | C/D E T | B E K T | |||||
| C40 | BBCA | ||||||||
| C43 | D3+4 | ||||||||
| C46 | BBCB | ||||||||
| C49tv_off | BBCB | ||||||||
| C54tv_off | BBCA | ||||||||
| C55tv_off | BBC1waves | BBC1waves | BBC1waves | ||||||
| C58tv_off | D3+4 | ||||||||
| C59tv_off | C4waves | C4waves | C4waves | ||||||
| C62 | BBC2waves | BBC2waves | BBC2waves | ||||||
| C65 | ITVwaves | ITVwaves | ITVwaves |
tv_off Being removed from Freeview (for 5G use) after November 2020 - 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 1-4 | 11W | |
| BBCA, D3+4, BBCB | (-7dB) 2.2W |
Which companies have run the Channel 3 services in the Limavady transmitter area
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Sunday, 14 August 2011
CASTLEDERG transmitter - Over the next week Castlederg relay: TV (analogue) Service Shutdowns, no digital TV, Radio (analogue) working normally, no digital radio. [DUK]
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Tuesday, 23 October 2012
At switchover the Castlederg transmitter will be off air from midnight until 9am on 24th October 2012 - see UK Digital switchover ends - Northern Ireland completes on 24th October 2012 | ukfree.tv - 10 years of independent, free digital TV advice for full details.
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Tuesday, 29 January 2013
W
william walsh1:37 AM
when will we be getting the rest of the freeview channels that are available to the rest of n-Ireland, here in castlederg and other border area's
thank you
wjw
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william walsh: The channels broadcast by the Castleberg transmitter are available to the rest of Northern Ireland.
The channels that aren't available from the Castleberg transmitter are the Commercial ones and these aren't broadcast from any small transmitters because the operators don't consider it worth their while. They aren't ever likely to increase their coverage and particularly so for a transmitting station which serves only 1,200 homes.
See here for an explanation:
Londonderry (Northern Ireland) digital TV transmitter | ukfree.tv - 10 years of independent, free digital TV advice
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Monday, 20 April 2015
Transmitter engineering
10:30 AM
10:30 AM
CASTLEDERG transmitter - RelayPossible service interruptions [DUK]
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Tuesday, 28 April 2015
Transmitter engineering
4:31 AM
4:31 AM
CASTLEDERG transmitter - RelayPossible service interruptions [DUK]
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Sunday, 20 September 2020
Monday, 21 September 2020
C
Chris.SE11:49 PM
NOLEEN LOGUE:
Without a full postcode we can't be absolutely certain which transmitter(s) you can/may receive. If it is Castlederg, then there are no fault reports except there's been a lot of "Tropospheric Ducting" around causing interference, see https://www.radioandtvhelp.co.uk/help-guides/television/effect-of-tropospheric-ducting-on-freeview for a simplistic explanation.
The BBC have also been reporting this several times on and off for your transmitter.
It may continue on and off for a day or two more.
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