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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Divis (Northern Ireland) transmitter.

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-3100,000W
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, 250 BBC Red Button, plus 13 others

PSB2
D3+4
 H max
C21+ (474.2MHz)551mDTG-3100,000W
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, 30 E4 +1, 35 UTV +1 (UTV),

PSB3
BBCB
 H max
C24 (498.0MHz)551mDTG-6100,000W
Channel icons
56 5SELECT, 101 BBC One HD Northern Ireland, 102 BBC Two HD (England), 103 UTV HD (UTV), 104 Channel 4 HD NI ads, 105 Channel 5 HD, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -3dB
C23 (490.0MHz)551mDTG-850,000W
Channel icons
12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H -3dB
C26 (514.0MHz)528mDTG-850,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H -3dB
C30 (546.0MHz)528mDTG-850,000W
Channel icons
 FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 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-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
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
Monday, 3 January 2022
C
Chris.SE
sentiment_very_satisfiedPlatinum

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 3,184 posts GB
T
Tony
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
S
StevensOnln1
sentiment_very_satisfiedPlatinum

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 3,402 posts GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

2:14 PM

Tony:

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 3,184 posts GB
Tuesday, 4 January 2022
D
Denis
sentiment_satisfiedBronze

11:14 AM

Tony:
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 23 posts GB
Friday, 15 April 2022
S
SAMUEL WILSON
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
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 3,402 posts GB
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
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.

link to this comment
Chris.SE's 3,184 posts GB
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Your comment please
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