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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-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, 30 December 2011
P
Peter Henderson
8:25 PM

We may have to put up with this kind of thing until DSO Richard.

Roll on next October !

link to this comment
Peter Henderson's 3 posts GB flag
P
Peter Henderson
8:26 PM

P.S. Might be a good idea to check all connections.

link to this comment
Peter Henderson's 3 posts GB flag
Monday, 16 January 2012
M
M E Moore
7:18 PM

I've being trying to get an answer to this question from other places to no avail so I'm hoping someone can answer it here.

With London switching to digital in April 2012 and N Ireland not converting until October 2012, will N Ireland analogue viewers still be able to receive live broadcasts from London based TV studios and stadiums etc?

Presumably they will be transmitting fully digital signals so I'm wondering is there any implications regarding events like the Olympics etc.

Thanks.

link to this comment
M E Moore's 12 posts GB flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

7:30 PM

M E Moore: The transmitters serving the London area will be switched to digital in April. That has nothing to do with Northern Ireland, even when the programming comes from London.

You haven't stumbled on some big secret to stop those in Northern Ireland from watching the Olympics!

link to this comment
Dave Lindsay's 5,724 posts GB flag
Friday, 20 January 2012
J
Jeff Montgomery
10:41 AM

Hi, I have followed all the advised procedures and it seems I am unable to receive ITV, Channel 4, Channel 5 or E4 through free view. My Postcode is BT44 0BS and we are serviced by the Divis transmitter. I'm concerned that, with the digital switchover later this year, I will be unable to receive these channels at all. Is there a plan to strengthen the signals? Or is it just "sorry you can no longer see these major channels"? Thanks in advance. Jeff

link to this comment
Jeff Montgomery's 1 post GB flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

11:07 AM

Jeff Montgomery: Before switchover, the digital signals are weaker than the current analogue ones. After switchover, the digital signals will be strong enough to cover the same area as the current analogue.

Due to the low power digital, some people won't be able to receive them and some will be on the margin.

You might try manually adding the multiplex that carries the services you aren't getting. A multiplex is a signal that carries a basket of services.

Try going through the menu to the manual tune option (assuming it exists on your set) and tune to channel 33.

link to this comment
Dave Lindsay's 5,724 posts GB flag
Sunday, 22 January 2012
R
Richard Johnston
3:55 PM
Belfast

I have been thinking about going Freeview, but looking at the map it appears that at BT9 5HP there is no coverage from the transmitters. Am I correct in this, or just not interpreting the information correctly? Any help appreciated.

link to this comment
Richard Johnston's 2 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
K
KMJ,Derby
sentiment_satisfiedGold

7:29 PM

Richard Johnston: The Digital UK postcode checker predicts excellent reception from Divis should be possible at your location both now and after switchover. Reception from Divis requires an aerial pointing NW and mounted with the rods horizontal. If your aerial is set with the rods vertical and is pointing to Black Mountain you will have to wait until switchover for Freeview transmissions to begin. Good reception is predicted from Black Mountain, but only the three PSB muxes will be transmitted as Black Mountain is a Freeview light relay transmitter.

link to this comment
KMJ,Derby's 1,811 posts GB flag
Monday, 23 January 2012
R
Richard Johnston
10:46 PM
Belfast

Thanks KMJ,Derby. What you say makes sense, it was just the way coverage looked on the map made me wonder about reception. Thanks again.

link to this comment
Richard Johnston's 2 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Tuesday, 31 January 2012
C
Chris76
7:05 PM

Hi All


With regards the DSO Divis.. rte has confirmed it will be live on the service. Also the divis transmitter is going to be very powerful indeed so if anybody is going to diy a new wideband areial i would suggest to move the aerial slightly off line or attenuation will be needed.

link to this comment
Chris76's 1 post GB flag
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