menuMENU    UK Free TV logo Freeview



Click to see updates

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 27/11/2023 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.

 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

 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),

 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

 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, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 35 others

 H -3dB
C26 (514.0MHz)528mDTG-850,000W
Channel icons
 Smithsonian Channel, 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 Christmas, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H -3dB
C30 (546.0MHz)528mDTG-850,000W
Channel icons
 Quest Red +1,  Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! christmas mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 235 Al Jazeera Eng, plus 20 others

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

 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

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.

Monday, 3 January 2022

3:37 AM

Carl Reade:

Hi Carl. No transmitter issues AFAIK and the BBC haven't got anything listed. The transmitter was listed for Planned Engineering w/c 13/12/21.
There has been some tropo around however, some the last few days but that should now have cleared. There was also some for around a whole week in mid-December which didn't clear until after the 23rd. HTH.

link to this comment
Chris.SE's 3,910 posts GB flag
10:10 AM

The information for Divis appears to be out of date.
NIMM (RTE etc) etc is on 33
I cannot find com 7 in Bangor, its certainly not on 33, unless there is a problem with my receiver
Can anyone tell me the channel number for com 7?

link to this comment
Tony's 1 post GB flag

12:54 PM

Tony: COM7 is broadcast from Divis on UHF channel 55, it is not available from any other transmitter in Northern Ireland and is due to close at the end of June when it's licence expires.

link to this comment
StevensOnln1's 3,565 posts GB flag

2:14 PM


It's the "transmission frequencies change over time" section that has the main errors that the site owner has not "clarified". The main section at the top of the page is correct other than the channel for the Local Belfast LBT mux which is C36 not C30.
All the channels are listed correctly in this post Divis (Northern Ireland) Full Freeview transmitter | free and easy
but also note that Arqiva closed COM8 for commercial reasons at the end of June 2020.

COM7 has been recently mentioned in these posts -
Divis (Northern Ireland) Full Freeview transmitter | free and easy
Divis (Northern Ireland) Full Freeview transmitter | free and easy

link to this comment
Chris.SE's 3,910 posts GB flag
Tuesday, 4 January 2022

11:14 AM

NVTV (TV Ch7) is on Mux ch 36 (NIMM 594GHz). In Killyleagh I get 100% strength from a communal 21 element Mux Master with a (11dBi gain). The 100% reading on my Samsung is somewhat arbitary, I don't know what signal strength it relates to. The Divis details show a transmitter power of 5kW. Given such a strong signal I doubt if it is that low.

Some parts of Bangor are in a shadow. You can check using a line-of-sight tool (such as on Solwise).

COM7 is Mux 55 and contains Freesports, PBS, BBC News HD. It needs a HD tuner. 100% signal in Killyleagh.

The TV Channel numbers, as shown in the TV Guide, change frequently and can move to another Mux, but the big ones don't.

Try to find signal information on your TV. It is often hidden away. On my Samsung it is settings>support>device care> self diagnosis and not in the tuning menu where you'd expect. LG is easier.

Let's know how you get on.

link to this comment
Denis's 24 posts GB flag
Friday, 15 April 2022
1:41 PM

BT38 LT for the past week we have been getting background voice overs eg " Man enters room and coughs" on some of the Divis channels.

link to this comment
SAMUEL WILSON's 1 post GB flag

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 3,565 posts GB flag
Thursday, 4 August 2022
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

2:29 PM


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.

link to this comment
Chris.SE's 3,910 posts GB flag
Friday, 10 February 2023
Transmitter engineering

11:08 AM

Divis transmitter - Divis transmitter: Possible effect on TV reception week commencing 06/02/2023 Pixelation or flickering on some or all channels [DUK]

link to this comment
Transmitter engineering's 146,506 posts GB flag
Select more comments

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.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

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.

UK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.

Privacy policy: UK Free Privacy policy.