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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
_______

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 October 2013
A
Anto
10:59 PM

Hello,
Can anyone please tell me how to manually find channel Dave, Dave Ja Vu and possibly GOLD? Would really appreciate it. I have a Saorview/Freeview combi box and live in the south in Dundalk, Co.Louth, relatively close to the border.

Regards,
Anto.C

link to this comment
Anto's 2 posts IE flag
M
Michael
sentiment_satisfiedGold

11:44 PM

Anto: If you scroll up to the list of multiplexes you will see Dave is on the ArqA mux - try a manual scan for UHF channel 26. Although, the commercial channels from Divis are broadcast at half the power of the public service ones, so you may not be able to pick them up.

link to this comment
Michael's 358 posts GB flag
Thursday, 24 October 2013
P
P. Kieran Ward
sentiment_satisfiedBronze

11:28 PM
Belfast

Anto: Do you know which transmitter you are receiving Freeview from? I think you may be getting your Freeview from the Newry South transmitter (https://ukfree.tv/txdetail.php?a=IJ093255) or Newry North transmitter (https://ukfree.tv/txdetail.php?a=IJ090284). Both of these transmitters are Freeview Light transmitters which means that they don't carry commercial stations. Both masts are public service broadcasting (PSB) transmitters and does not provide these commercial (COM) channels: 4Music, 4seven, 5 Later, 5*, 5USA, Al Jazeera English, Al Jazeera HD, Challenge, Channel 5 +1, CITV, Community Channel, Dave, Dave ja vu, Drama, E4+1, Film 4 +1, Food Network, ITV 2 +1, ITV 3, ITV 3 +1, ITV 4, Movie Mix, pick, Quest, Really, RT English , Sky News, The Zone, Travel Channel, True Entertainment, VIVA, Yesterday.

If by any chance you can receive your Freeview signals from Divis do you get anything on UHF Channels 23 or 29? If you do - it is surprising that you are not receiving anything on UHF Channel 26 as they all broadcast on the same power output (50,000W).

Let me know which Freeview transmitter are you receiving your Freeview from!

Regards

Kieran (North Belfast)


link to this comment
P. Kieran Ward's 89 posts GB flag
P.'s: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
P
PJH
sentiment_satisfiedSilver

11:44 PM

Or Possibly the Kilkeel transmitter Kieran., which is also Freeview light.

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PJH's 240 posts GB flag
Friday, 25 October 2013
P
P. Kieran Ward
sentiment_satisfiedBronze

11:44 PM

Hi PJH!

Possibly it could be Kilkeel but if by chance Anto is using only one aerial and if it is pointing towards Saorview's Clermont Carn transmitter I would believe that the Newry transmitters would be more in line. Of course until Anto gets back to this forum we can only speculate!

If he gets back in touch we all may be able to advise him.

Regards

Kieran (North Belfast)


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P. Kieran Ward's 89 posts GB flag
Monday, 28 October 2013
S
sellis
8:33 PM

what are the lights at the transmitter tonight? s north belfast

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sellis's 1 post GB flag
Monday, 4 November 2013
P
PaulN
sentiment_satisfiedBronze

8:10 AM

Anyone else experiencing reception issues from Divis this morning ? I have much reduced power on all channels on all receivers while one STB reports no signal on them all. I just checked that my aerials haven't fallen off the roof !

link to this comment
PaulN's 39 posts GB flag
P
PaulN
sentiment_satisfiedBronze

1:17 PM

Turns out I am special again... My labgear loft amplifier died overnight. Changed its mains fuse but it is not powering up. One for the bench or bin later.

Bypassed it with a splitter for a couple of TVs and all is good again. Interestingly the only channel that needs any amplification off the back of my log periodic aerial for division is the nimm on C39 but quality is perfect despite the low strength.

I had noticed some artefacts on BBC HD channels last night - that must have been dying gasp of the labgear unit but I never gave it a second thought.

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PaulN's 39 posts GB flag
Tuesday, 5 November 2013
P
PaulN
sentiment_satisfiedBronze

1:06 PM

Bench tests show the input side of the transformer has burnt out for reasons unknown but it will be easy to graft on an alternative 12V power source to get my labgear unit operational again. Darned if I am paying 60-80 quid for a new one !

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PaulN's 39 posts GB flag
Friday, 8 November 2013
P
PaulN
sentiment_satisfiedBronze

9:37 PM

Back in business with repaired loft amp. It must have been slowly dying for a while cos I am now seeing perfect picture on C56 SaorView mux 2 while at launch it was abysmal.

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PaulN's 39 posts GB flag
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