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Full Freeview on the Divis (Northern Ireland) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps54.607,-6.009 or 54°36'24"N 6°0'34"Wsa_postcodeBT17 0NG

 

The symbol shows the location of the Divis (Northern Ireland) transmitter which serves 440,000 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 Divis (Northern Ireland) mast?

Divis transmitter - Divis transmitter: Possible effect on TV reception week commencing 25/03/2024 Pixelation or flickering on some or all channels Digital tick


Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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Which Freeview channels does the Divis 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
 H max
C27 (522.0MHz)551mDTG-100,000W
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
 H max
C21+ (474.2MHz)551mDTG-100,000W
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),

PSB3
BBCB
 H max
C24 (498.0MHz)551mDTG-100,000W
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

COM4
SDN
 H -3dB
C23 (490.0MHz)551mDTG-850,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 H -3dB
C26 (514.0MHz)528mDTG-850,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

COM6
ArqB
 H -3dB
C30 (546.0MHz)528mDTG-850,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

LBT
 H -13dB
C36 (594.0MHz)528mDTG-125,000W
Channel icons
from 29th September 2014: 7 NvTv,

NIMM
 H -40dB
C48 (690.0MHz)551mDTG-10W
Channel icons
from 4th September 2019: 53 TG4, 54 RTÉ One, 55 RTÉ Two,

DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Which BBC and ITV regional news can I watch from the Divis 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.

Are there any self-help relays?

Chapel FieldsTransposerCentral Belfast61 homes

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

1950s-80s1984-971997-981998-20122012-134 Mar 2020
VHFA K TA K TA K TK TW T
C1BBCtvwaves
C21C4wavesC4wavesC4waves+D3+4D3+4
C23SDNSDN
C24ITVwavesITVwavesITVwavesBBCBBBCB
C26ArqAArqA
C27BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C29ArqB
C30LBT
C31BBC1wavesBBC1wavesBBC1waves
C33com7
C34com8
C36_local
C48NIMMNIMM
C55tv_offcom7tv_off
C56tv_offCOM8tv_off

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 1-4 500kW
BBCA, D3+4, BBCB(-7dB) 100kW
SDN, ARQA, ARQB(-10dB) 50kW
com8(-16dB) 12.7kW
com7(-16.1dB) 12.4kW
LBT(-20dB) 5kW
Mux 1*, Mux 2*, Mux A*, Mux B*(-23.4dB) 2.3kW
Mux C*(-24dB) 2kW
Mux D*(-24.9dB) 1.6kW
NIMM(-47dB) 10W

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. Divis 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
Wednesday, 23 May 2012
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 PM

DIVIS transmitter - Analogue BBC TWO Weak Signal from 13:20 today to 13:35 today [BBC] Over the next week Divis main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) Possible weak signal, Radio (digital) working normally. [DUK]

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Transmitter engineering's 149,799 posts xx flag
Thursday, 24 May 2012
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 AM

DIVIS transmitter - Analogue BBC TWO Weak Signal from 13:20 yesterday to 13:35 yesterday [BBC] Over the next week Divis main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) Possible weak signal, Radio (digital) working normally. [DUK]

link to this comment
Transmitter engineering's 149,799 posts xx flag
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 AM

DIVIS transmitter - Analogue BBC TWO Weak Signal from 13:20 yesterday to 13:35 yesterday [BBC] Over the next week Divis main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) Possible weak signal, Radio (digital) working normally. [DUK]

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Transmitter engineering's 149,799 posts xx flag
Friday, 25 May 2012
P
P. Kieran Ward
sentiment_satisfiedBronze

12:11 AM

Downeagle - I believe I heard on both BBCNI and UTV that there was work being undertaken at the Newcastle transmitter during this week (21st - 25th May 2012).

Regards

kieranward

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P. Kieran Ward's 89 posts GB flag
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 AM

DIVIS transmitter - Analogue BBC TWO Weak Signal from 13:20 on 23 May to 13:35 on 23 May [BBC] Over the next week Divis main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) Possible weak signal, Radio (digital) working normally. [DUK]

link to this comment
Transmitter engineering's 149,799 posts xx flag
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 AM

DIVIS transmitter - Analogue BBC TWO Weak Signal from 13:20 on 23 May to 13:35 on 23 May [BBC] Over the next week Divis main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) Possible weak signal, Radio (digital) working normally. [DUK]

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Transmitter engineering's 149,799 posts xx flag
P
Peter Henderson
sentiment_satisfiedSilver

11:09 AM

Along with Kilkeel Kieran.

However, since you're receiving Freeview Downeagle, you must have your aerial pointed at Divis.

Most likely due to atmospheric conditions.

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Peter Henderson's 240 posts GB flag
D
davy
9:15 PM

I live in glengormley bt36.. which transmitter should i go to for best freeview reception..at the moment most aerials point to carnmoney...i would like to get recption from divis as this has more channels

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davy's 1 post GB flag
M
Mark Fletcher
sentiment_satisfiedGold

11:36 PM
Halifax

Davy,Glengormley.If you were to wait until after DSO is completed in Northern Ireland/Ulster from Wednesday 24 October 2012 onwards,then what you indicated about Divis being yer preferred option certainly will bear fruit.Please bear in mind if you did opt for the main Divis transmitter,you will need preferably a group A aerial,or a group K aerial as an alternative.

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Mark Fletcher's 673 posts GB flag
Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Saturday, 26 May 2012
P
Peter Henderson
sentiment_satisfiedSilver

12:16 AM

Davy: Depends what part of Glegomey your in.

On the Antrim Road down around Pizza Hut for example, most aerials point tooward Carnmoney Hill, but up around the church road and Ballyhenry Road they all seem to receive Divis. After DSO there's going to be a considerable power increase so even areas that can't get Freeview from Divis at the moment may well do so after DSO.

I'd try Digital UK's postcode checker which should give you a rough idea of what will be available after 24th October.

Don't forget, the new RTE NIMM will be broadcast from Carnmoney Hill. If you can't receive the NIMM from Black Mountain it may be worthwhile putting aerials up for both and diplexing them into the one downlead.

I don't think Clermont Carn reaches Glengprmley although who knows what will happen after it increases power to 160kw in October !

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Peter Henderson's 240 posts GB flag
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