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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.

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 29/11/2021 Possible 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.

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, 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, 25 ITV4, 29 E4 +1, 34 UTV +1 (UTV),

PSB3
BBCB
 H max
C24 (498.0MHz)551mDTG-6100,000W
Channel icons
72 Shopping Quarter , 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, 204 CBBC HD, plus 1 others

COM4
SDN
 H -3dB
C23 (490.0MHz)551mDTG-850,000W
Channel icons
 CCXTV, 12 Quest, 20 Drama, 21 5USA, 28 ITV2 +1, 31 5STAR, 32 Paramount Network, 41 GREAT! movies action, 45 Channel 5 +1, 55 5SELECT, 57 ITVBe +1, 58 ITV3 +1, 59 ITV4 +1, 63 Blaze, 66 CBS Reality, 68 Horror Channel, 73 Drama +1, 77 TCC, 80 Blaze +1, 203 CITV, 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, 30 4Music, 35 pick, 39 Quest Red, 42 Food Network, 46 Film4 +1, 47 Challenge, 48 4seven, 56 Smithsonian Channel, 69 Quest +1, 74 Yesterday +1, 82 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H -3dB
C30 (546.0MHz)528mDTG-850,000W
Channel icons
23 Dave ja vu, 26 Yesterday, 33 GREAT! movies, 38 DMAX, 40 CBS Justice, 43 HGTV, 67 CBS Drama, 81 Talking Pictures TV, 84 PBS America, 234 RT, 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
 Together TV +1,  Merit, 64 FreeSports, 70 Quest Red +1, 76 Now 70s, 86 More4 +1, 87 PBS America +1, 89 Court TV, 96 Forces TV, 106 BBC Four HD, 107 BBC News HD, 113 RT HD, 114 Quest HD, 205 CBeebies HD, plus 2 others

NIMM
 H -40dB
C48 (690.0MHz)551mDTG-10W
Channel icons
from 4th September 2019: 52 TG4, 53 RTÉ One, 54 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 - 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
Tuesday, 6 May 2014
P
Pauric
1:07 AM

Hi, I was just wondering has anyone had a problem with channel interference from mt leinster which is blocking out my CH23 and CH26 from Divis. What is the best solution to this problem. I live in South Co. Monaghan.

link to this comment
Pauric's 4 posts IE
R
Richard
sentiment_satisfiedBronze

8:01 PM

Pauric: Direct your aerial to Brougher Mountain transmitter and scan for tv channels.

link to this comment
Richard's 98 posts IE
P
P. Kieran Ward
sentiment_satisfiedBronze

11:36 PM

Pauric!

As Richard has said try Brougher Mountain - it is much closer to you than Divis and Brougher is a main transmitter just like Divis.

Let us know how you get on!

P. Kieran Ward

link to this comment
P. Kieran Ward's 89 posts GB
Wednesday, 7 May 2014
Dave Lindsay
sentiment_very_satisfiedPlatinum

4:43 AM

P. Kieran Ward: But Brougher's COMs are co-channel with Divis' PSBs.

link to this comment
Dave Lindsay's 5,724 posts GB
P
PJH
sentiment_satisfiedSilver

11:25 PM

Freesat might be the only answer.

link to this comment
PJH's 240 posts GB
Thursday, 8 May 2014
P
P. Kieran Ward
sentiment_satisfiedBronze

12:28 AM

Dave! I forgot about that....

Regards

P. Kieran Ward

link to this comment
P. Kieran Ward's 89 posts GB
Tuesday, 27 May 2014
J
j.robinson
11:56 PM

CAN you helpi live Greyabbey CO. Down. im serviced from divis transmitter can you advise which is the best RF/OUT CHANNEL to use from my skybox to my second tv thank you

link to this comment
j.robinson's 1 post GB
Wednesday, 28 May 2014
J
jb38
sentiment_very_satisfiedPlatinum

12:27 AM

j.robinson: You can safely use any channel from 62 to 68, as nothing transmits in that range.

link to this comment
jb38's 7,179 posts GB
Wednesday, 9 July 2014
Transmitter engineering
sentiment_very_satisfiedOwner

1:31 PM

DIVIS transmitter - DAB: BBC National DAB Radio Weak Signal from 13:04 today. FM: Radio 1 FM Weak Signal from 12:12 today, Radio 2 FM Weak Signal from 12:20 today, Radio 3 FM Weak Signal from 12:20 today, Radio 4 FM Weak Signal from 01:40 on 05 Jul to 03:13 on 05 Jul, Radio [BBC]

link to this comment
Transmitter engineering's 137,769 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

7:31 PM

DIVIS transmitter - DAB: BBC National DAB Radio Weak Signal from 13:04 today to 16:04 today. FM: Radio 1 FM Weak Signal from 12:12 today to 16:01 today, Radio 2 FM Weak Signal from 12:20 today to 15:59 today, Radio 3 FM Weak Signal from 12:20 today to 15:59 today, Radio 4 FM [BBC]

link to this comment
Transmitter engineering's 137,769 posts xx
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