Freeview: Carnmoney Hill (Northern Ireland) Freeview Light transmitter
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Freeview Light on the Carnmoney Hill (Northern Ireland) transmitter

Google mapBing mapGoogle Earth54.676,-5.930 or 54°40'35"N 5°55'48"W

Transmitter faults and engineering works

CARNMONEY HILL transmitter - DAB: BBC National DAB Radio Off Air from 15:37 on 21 May to 15:43 on 21 May. BBC


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

Other maps:Carnmoney Hill DABCarnmoney Hill AM/FMDivis regionBBC Northern IrelandUTV

Radiation patterns

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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.


List by multiplex|List by channel number|List by channel name|See terrain plot

Carnmoney Hill transmitter Freeview broadcasts

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.

MuxAerial positionFrequencyHeightModeWatts
PSB1
BBCA
 vertical max
C46 (674.0MHz)254m64QAM 8K 2/3
24.1Mb/s DVB-T MPEG2		16W
Channel icons
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, plus 14 others

PSB2
D3+4
 vertical max
C40 (626.0MHz)254m64QAM 8K 2/3
24.1Mb/s DVB-T MPEG2		16W
Channel icons
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 1 others

PSB3
BBCB
 vertical max
C43 (650.0MHz)254m256QAM 32KE 2/3
40.2Mb/s DVB-T2 MPEG4		16W
Channel icons
101 BBC One HD Northern Ireland, 102 BBC Two HD (England), 103 UTV HD (UTV), 104 Channel 4 HD NI ads, plus 1 others

NIMM
 vertical max
C48 (690.0MHz)254mQPSK 32KN 2/3
10.0Mb/s DVB-T2 MPEG4		16W
Channel icons
51 TG4 (NI), 52 RTE One (NI), 53 RTE Two (NI), plus 1 others



Regional news from the Carnmoney Hill transmitter


BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,044km northeast
to BBC Northern Ireland region - 46 masts.

UTV Live 0.6m homes 2.5%
from Belfast BT7 1EB, 1,044km northeast
to UTV region - 46 masts.

How the transmission frequencies change over time

years1984-971997-981998-20122012-132013-182013-18
aerial groupB EB EB EB E KB E KB E K
C40BBC1BBC1BBC1D3+4D3+4D3+4
C43ITVITVITVBBCBBBCBBBCB
C46BBC2BBC2BBC2BBCABBCABBCA
C48NIMMNIMMNIMM
700C50C4C4C4

orange background for multiplexes names moregreen background for transmission frequencieslilac background for power levels in watts800MHz band: 4G mobile to start in 2013700MHz band: possible 4G in 2019 more600MHz band: new or moved digital TV services more
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Wednesdays 10th October and 24th October 2012.


Comparison of old analogue and current digital signal levels

Analogue 1-4 20W
NIMM, BBCA, D3+4, BBCB(-1dB) 16W

History of Channel 3 in the Divis transmitter area

Oct 1959-Dec 2014Ulster Television
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.


Your comments: most recent posts are at the bottom

firstFirst comments prevEarlier comments  ◊ 

Your comments are always welcome. Please use the form below to add your thoughts or questions to this page. We will get back to you as soon as we can.

Peter Henderson
Wednesday 20 February 2013 2:31AM
Cambret Hill would be interesting KMJ as it would help out a lot of people in areas around here that can't get Divis. I've noticed the strength of this transmitter has increased significantly in recent months, so it certainly could be an alternative to Divis.

My point about Londonderry is that it's the second largest city in NI, as well as being the second most densley populated area of the province. The fact the ERP is 2 kw only adds to the fact that it's strange it's only a Freeview Lite transmitter.

Still, I've been told most areas in Derry City can receive Limavady, so maybe it's not such a big issue.
Transmitter engineering
Tuesday 21 May 2013 4:31PM
CARNMONEY HILL transmitter - DAB: BBC National DAB Radio Off Air from 15:37 today to 15:43 today. [BBC]
Transmitter engineering
Wednesday 22 May 2013 4:32AM
CARNMONEY HILL transmitter - DAB: BBC National DAB Radio Off Air from 15:37 yesterday to 15:43 yesterday. [BBC]
Transmitter engineering
Wednesday 22 May 2013 3:09PM
CARNMONEY HILL transmitter - DAB: BBC National DAB Radio Off Air from 15:37 yesterday to 15:43 yesterday. [BBC]
Transmitter engineering
Thursday 23 May 2013 4:32AM
CARNMONEY HILL transmitter - DAB: BBC National DAB Radio Off Air from 15:37 on 21 May to 15:43 on 21 May. [BBC]
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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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