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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 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
Friday, 12 October 2012
E
Eddie Bosano-Andrews
9:11 AM

Just as an FYI for anyone, I live south of the border in Ardee. I have an LG Smart TV Freeview HD.

I am receiving Saorview and MUX BBCA, MUX A and MUX B perfectly without any problems since 10th October.

Based on this I'm pretty certain that come the 24th I'll have the full Saorview and Freeview HD service.

link to this comment
Eddie Bosano-Andrews's 1 post US
M
mrdtv
sentiment_satisfiedGold

11:05 AM

Eddie Bosano-Andrews:

The coverage is now outstanding in the Republic from Divis and Kilkeel, all the wayto Dublin and indeed Wicklow! See boards.ie. Its also excellent on the IOM and in SW Scotland, Argyll and parts of NW North Wales.

If you have a Freeview HD TV you are in business on the 24th as the Divis HDTV frequency is also 100kW.

link to this comment
mrdtv's 321 posts GB
Monday, 15 October 2012
P
Peter Henderson
sentiment_satisfiedSilver

3:47 PM

Just to clarify things re. RTE, a standrd definition Freview set top box/TV will tune in all Saorview channels (apart from RTE Two HD) and the NI mux. However, you will get sound only and no picture. Thi is obviously not a problem with regard to the radio stations.

HD channels (Whether RTE or BBC) simply don't appear on a standard definition Freeview STB or TV when you do a rescan.

link to this comment
Peter Henderson's 240 posts GB
Briantist
sentiment_very_satisfiedOwner

4:06 PM

Peter Henderson: that's not correct. UK freeview SD equipment cannot receive the minimux for lack of dvb-t2 and can't get the roi direct for lack of MPEG 4 decoding.

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Briantist's 38,844 posts GB
P
Peter Henderson
sentiment_satisfiedSilver

5:18 PM

Brian: I assume SD equioment will receive the NI mux in the same way as it receives Saorview i.e. sound but no picture.

SD equipment will definitely tune in Saorview this way. I know this from experience. I assume the NI mux will be no different ?

SD equipment will not recognise HD transmissions at all e.g. RTE Two HD and the Freeview HD multiplex, so nothing will be placed on the E.P.G. in this case

link to this comment
Peter Henderson's 240 posts GB
M
Michael
sentiment_satisfiedGold

5:34 PM

Peter Henderson: No, a DVB-T tuner won't pick up the DVB-T2 NI mux (just like a 2k tuner won't pick up the new 8k signal).

I have seen a Freeview manual box with DVB-T/MPEG2 for picture and MPEG4 for audio so you may well be correct.

link to this comment
Michael's 358 posts GB
M
Michael
sentiment_satisfiedGold

5:35 PM

*Freeview box manual

link to this comment
Michael's 358 posts GB
M
mrdtv
sentiment_satisfiedGold

6:44 PM

Peter Henderson:

To receive

a) Saorview

b) NIMM

c) Freeview HD

d) Freeview SD

simultaneously if you have access to all of these formats, the ONLY choice is Freeview HD equipment. As recommended by DUK.

link to this comment
mrdtv's 321 posts GB
Tuesday, 16 October 2012
P
Peter Henderson
sentiment_satisfiedSilver

12:09 AM

Well, we'll see next wednesday re. the NI mux

However, I'm 100% certain an SD receiver will receive a signal from Saorview but with sound only.

An SD receiver will not decode an HD signal, in much the same way as a 2K receiver wont decode an 8K signal.


link to this comment
Peter Henderson's 240 posts GB
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