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Freeview Light on the Carnmoney Hill (Northern Ireland) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps54.676,-5.930 or 54°40'35"N 5°55'48"Wsa_postcodeBT36 6DD

 

The symbol shows the location of the Carnmoney Hill (Northern Ireland) transmitter which serves 21,000 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.

Are there any planned engineering works or unexpected transmitter faults on the Carnmoney Hill (Northern Ireland) mast?

CARNMONEY HILL transmitter - DAB: Off the air due to essential engineering from 13 Oct 11:45 until 13 Oct 12:45. . FM: Off the air due to a fault from 14 Oct 12:20 until 14 Oct 12:23. . BBC


Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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Which Freeview channels does the Carnmoney Hill 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
C46 (674.0MHz)254mDTG-316W
Channel icons
1 BBC One (SD) Northern Ireland, 2 BBC Two Northern Ireland, 9 BBC Four, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 13 others

PSB2
D3+4
 V max
C40 (626.0MHz)254mDTG-316W
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, 25 ITV4, 29 E4 +1, 34 UTV +1 (UTV),

PSB3
BBCB
 V max
C43 (650.0MHz)254mDTG-616W
Channel icons
72 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

NIMM
 V max
C48 (690.0MHz)254mDTG-1116W
Channel icons
52 TG4, 53 RTÉ One, 54 RTÉ Two,

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-11 QPSK 32KN 2/3 10.0Mb/s DVB-T2 MPEG4
H/V: aerial position (horizontal or vertical)

Are you trying to watch these 11 Freeview HD channels?

the effected channels

The Carnmoney Hill (Northern Ireland) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: BBC Four HD, BBC News HD, CBeebies HD, Quest HD, Forces TV, FreeSports, More4 +1, Now 70s, PBS America +1, Quest Red +1, RT HD.

If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? page.

Which BBC and ITV regional news can I watch from the Carnmoney Hill transmitter?

regional news image
BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,044km northeast (51°)
to BBC Northern Ireland region - 46 masts.
regional news image
UTV Live 0.6m homes 2.5%
from Belfast BT7 1EB, 1,044km northeast (51°)
to UTV region - 46 masts.

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

1984-971997-981998-20122012-1330 Sep 2019-
B E TB E TB E TB E K TB E K T
C40BBC1wavesBBC1wavesBBC1wavesD3+4D3+4
C43ITVwavesITVwavesITVwavesBBCBBBCB
C46BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C48NIMMNIMM
C50tv_offC4wavesC4wavesC4waves

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 20W
NIMM, BBCA, D3+4, BBCB(-1dB) 16W

Which companies have run the Channel 3 services in the Divis 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. Carnmoney Hill 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
Saturday, 13 March 2021
T
Timothy Davis
11:46 AM

The issue has resolved now after several days. It was not working this morning and now later in the morning, all the channels on that mux are back (after communicating with various people last night and early this morning). You say that problematic connections, water ingress, etc., can seem to affect reception of just an individual mux. This is interesting and I will check for these things.

link to this comment
Timothy Davis's 4 posts GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

2:51 PM

Timothy Davis:

To get more technical, problematic connections etc. can result in what's called standing waves in the cable which are often frequency specific and so affecting one particular frequency more than others.
Major cable breaks will of course have an effect on all signals.
This is why it's a good idea to make a note of the signal strengths and quality of signals for all the multiplexes when your system has no faults, then when there's a problem it can help to identify to possible causes.

link to this comment
Chris.SE's 2,424 posts GB
Wednesday, 13 October 2021
Transmitter engineering
sentiment_very_satisfiedOwner

11:43 AM

CARNMONEY HILL transmitter - DAB: Off the air due to essential engineering from 13 Oct 11:45. . [BBC]

link to this comment
Transmitter engineering's 136,837 posts GB
Transmitter engineering
sentiment_very_satisfiedOwner

2:43 PM

CARNMONEY HILL transmitter - DAB: Off the air due to essential engineering from 13 Oct 11:45 until 13 Oct 12:45. . [BBC]

link to this comment
Transmitter engineering's 136,837 posts GB
Thursday, 14 October 2021
Transmitter engineering
sentiment_very_satisfiedOwner

2:29 PM

CARNMONEY HILL transmitter - DAB: Off the air due to essential engineering from 13 Oct 11:45 until 13 Oct 12:45. . FM: Off the air due to a fault from 14 Oct 12:20 until 14 Oct 12:23. . [BBC]

link to this comment
Transmitter engineering's 136,837 posts GB
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