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Full Freeview on the Divis (Northern Ireland) transmitter

first published this on - UK Free TV
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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 Player, 211 Ketchup TV, 212 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 9 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, 91 Classic Hits, 235 Aljazeera English, plus 18 others

LBT
 H -13dB
C30 (546.0MHz)528mDTG-125,000W
Channel icons
from 29th September 2014: 7 NvTv,

com7
 H -9.1dB
C55 (746.0MHz)551mDTG-612,400W
Channel icons


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, 17 June 2013
Arun
1:38 PM
Stoke-on-trent

Thanks Brian, for the information.
Explains why it was just a momentary loss, and not a loss for an extended time or a low signal condition.

link to this comment
Arun's 7 posts GB
Wednesday, 17 July 2013
C
Carl
sentiment_satisfiedBronze

7:52 PM

Is high pressure effecting UTV multiplex??

link to this comment
Carl's 51 posts GB
P
P. Kieran Ward
sentiment_satisfiedBronze

9:15 PM
Belfast

Carl - No problems with UTV being experienced in North Belfast this evening!

link to this comment
P. Kieran Ward's 89 posts GB
Friday, 19 July 2013
P
PJH
sentiment_satisfiedBronze

2:40 PM

Noticed something strange on my Sony PVR as well Carl. Signal strength 100% but message saying no signal received. Only seemed to be affecting the Sony and all stations on channel 21. Other TV's/PVRs were fine.

A quick manual retune of 21 restored all channels.

Strange.

Absolutely no adverse affects due to the weather conditions, which definitely wouldn't have been the case last year.

DSO definitely was a good job. Pity it took so long to come here but it was well worth waiting for.

link to this comment
PJH's 75 posts GB
C
Carl
sentiment_satisfiedBronze

7:47 PM

Hi, Got an answer apparently there was an upgrade being carried out between the 16th - 17th which caused UTV, ITV etc to drop out. It effected certain boxes and TV brands. As you say PJH a retune sorted it.

link to this comment
Carl's 51 posts GB
P
P. Kieran Ward
sentiment_satisfiedBronze

10:36 PM

Hi all!

Does anyone have any update on when Northern Visions TV will be available on Freeview in the greater Belfast area?

Regards

P. Kieran Ward

link to this comment
P. Kieran Ward's 89 posts GB
Sunday, 21 July 2013
P
PJH
sentiment_satisfiedBronze

12:27 AM

Sometime during the autumn, according to a516:

a516digital: Local TV

link to this comment
PJH's 75 posts GB
P
P. Kieran Ward
sentiment_satisfiedBronze

11:20 PM
Belfast

Hi PJH!

I was aware it is due to recommence broadcasting and the last date I saw for this recommencement was 9th September 2013. It was a case of the station raising the capital (cash) to pay the broadcasting fees to Arqiva. I was just wondering if they (NVTV) have raised the funds necessary.

P. Kieran Ward

link to this comment
P. Kieran Ward's 89 posts GB
Monday, 22 July 2013
P
PJH
sentiment_satisfiedBronze

1:47 AM

Yep, seem to remember 9th September on the a516 website at one stage, so I wonder if the re launch has been put back ?

When I watched it over at my parents house in East Belfast it seemed like not a bad wee station with some very interesting docus. and shows, though they seemed to go round in a loop.

I'm not sure if we'll receive it here on Freeview or not, though everything is great from Divis at the moment thanks to the power increase.

Even at pre DSO levels it was mostly OK, so I would imagine NVTV should be fine. I'm not sure what their ERP will be on Freeview (4kw ?.

link to this comment
PJH's 75 posts GB
Wednesday, 24 July 2013
Arun
10:22 AM
Stoke-on-trent

Hi Brian,
I'm on the Divis Mux and I'm seeing some abnormal activity in the PAT table on RF Channel 21 (PSB2 - UTV mux). The PAT seems to be refreshing constantly even though there is no apparent change in the transmitted information. (& the version numbers seem to be toggling between 01 & 0F). Any idea why this is occurring ? Thanks.

link to this comment
Arun's 7 posts GB
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