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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 02/12/2024 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), 71 That’s 60s,

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 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 251 Al Jazeera English, 255 FRANCE 24 (in English), 265 Rok Sky +1, plus 29 others

COM5
ArqA
 H -3dB
C26 (514.0MHz)528mDTG-850,000W
Channel icons
11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 76 That's TV 2 MCR, 233 Sky News, plus 13 others

COM6
ArqB
 H -3dB
C30 (546.0MHz)528mDTG-850,000W
Channel icons
12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 63 GREAT! romance mix, 73 HobbyMaker, 75 That's 90s, 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
Friday, 15 April 2022
S
StevensOnln1
sentiment_very_satisfiedPlatinum

4:33 PM

SAMUEL WILSON: You've got audio description switched on. Try pressing the AD button on your remote or look for a setting for it in the menu.

link to this comment
StevensOnln1's 3,673 posts GB flag
Thursday, 4 August 2022
H
hsrrysmyth
12:29 PM

Why has Freeview made this area non existent during switchover 2000
When signal was good and high!
We in this area have suffered with terrible coveragifor two Decades and mostly costly interference from freeviefrom yourselves and still had pay televisions licences,
BBC had strongest signals and frequency all along until now and why.
Would appreciate if Freeview would restore strongest signals
They had stolen for streaming companies.

link to this comment
hsrrysmyth's 1 post GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

2:29 PM

hsrrysmyth:

Sorry, your assumptions are incorrect.
The Divis transmitter isn't currently listed for Planned Engineering, but the lists aren't always 100%.
There are no current faults listed by the BBC that I can find either.
There has been some "Tropospheric Ducting" with the current weather conditions which may have affected reception recently, and predicted that it may do so again at the weekend in your area.

Have you checked that your aerial is still intact and pointing the correct way?
How old is your aerial roughly? Is the downlead undamaged and not flapping in the wind?
Have you checked the coax connections behind your TV?
Do you have any amp/splitter, if so is it still powered and functioning correctly?

The transmitter power since DSO is 50kW and comparable with many other UK main transmitters when comparing Digital to Analogue, many of which have improved coverage.

If you provide a full postcode we can check your predicted reception.

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Chris.SE's 4,374 posts GB flag
Friday, 22 September 2023
D
Denis
sentiment_satisfiedBronze

11:28 AM

Many RTE programmes from Divis are blocked because of Copyright and Licensing. Rugby is one example.
Some areas in N.I. can get RTE direct from Clermont Carn near Omeath and Honeywell Hill in Donegal.
Clermont is powerful 140kW and reaches West Belfast but for large swathes of the country signal are blocked by the Mourne Mountains.
Best way to find out if you can get RTE direct is to look around your neighbourhood for vertical polarised aerials pointing towards the transmitter.

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Denis's 24 posts GB flag
Sunday, 3 December 2023
G
Gemma
8:00 PM
Bangor

Hi,

BT19 7XS, aerial on roof

I've been having issues with the ARQ-A channels for the past week or so. Tried various troubleshooting steps but they're still pixelated and unwatchable. Up until then the channels worked perfectly with no issues. They are still working on a TV in the next room. No issues with any other channels (although BBCA has started being spotty this evening). A

I see there was planned engineering on Divis starting 27/11, could this be the cause? Is there an estimated end date? Not sure what else to try save getting someone out to look at the aerial.

link to this comment
Gemma's 1 post GB flag
Gemma's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
C
Chris.SE
sentiment_very_satisfiedPlatinum

8:32 PM

Gemma:

Hi Gemma. It could be the Planned Engineering especially if ArqA is on reduced power or the Reserve Antenna, BUT, you mention the last few weeks when the transmitter wasn't listed in the middle 2 weeks of November. However that doesn't necessarily mean that work wasn't going on, we know the lists can sometimes be inaccurate. Unfortunately Arqiva never specify how long the work will take or what it entails!

You mention that the channels are ok on the TV in the next room, which suggests the signal may be a bit marginal and maybe it's a longer cable run for the affected TV?
Does the splitter you use to feed the two TVs have an amp, or is it just passive?

I'd check that your aerial is still pointing OK, it should be compass bearing 263 degrees, that's 6 degrees S of due W, with its rods (or squashed Xs) horizontal. Check the downlead isn't flapping in the wind. How old is the installation?
Check all your accessible coax connections for corrosion or water.

You should have had a postcode from RestoreTV about possible interference from mobile signals.
Put your postcard in here https://restoretv.uk/post…ure/ to check.
if you haven't got a free Filter, contact them to get one. It should be fiited before the amp/splitter.
If you happen to have a masthead amp tell RestoreTV as they'd need to send an engineer (free) to intall an external filter & possibly change the aerial.

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Chris.SE's 4,374 posts GB flag
C
Chris.SE
sentiment_very_satisfiedPlatinum

8:36 PM

Gemma:

Typo, I meant -
Put your postcode in here https://restoretv.uk/post…ure/ to check.
Not postcard in there :D

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Chris.SE's 4,374 posts GB flag
Wednesday, 10 April 2024
M
Marian Magee
3:44 PM

Transmitter engineering: how long will the engineering work take on Divis transmitter? Our tv reception has beeb pixilated for weeks now.

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Marian Magee's 1 post GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

5:26 PM

Marian Magee : Nobody from Arqiva (the company that operate the transmitters) posts on here, it's just an automated feed provided by BBC Engineering. They never say how long the work is planned to last for as it depends on various factors such as the weather (the engineers can't work on the mast structure during heavy rain or high winds). The only publicly available information is a list which transmitters are being worked on each week, as this is an independent technical help website, nobody here is likely to have any further information.

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StevensOnln1's 3,673 posts GB flag
Saturday, 14 September 2024
H
https://Casinobitstarz.webgarden.com/
4:15 PM

always i used to read smaller posts which also clear their motive, and thaat iss also happening with this article which
I am reading at this place.

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https://Casinobitstarz.webgarden.com/'s 1 post US flag
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Your comment please
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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If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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