Full Freeview on the Divis (Northern Ireland) transmitter

Brian Butterworth first published this on 1st May 2004 at 08:20 - UK Free TV

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54.607,-6.009 or 54°36'24"N 6°0'34"W

BT17 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 11/11/2024 Pixelation or flickering on some or all channels

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name

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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.

Mux	H/V	Frequency	Height	Mode	Watts
PSB1 BBCA	H max	C27 (522.0MHz)	551m	DTG-	100,000W
	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)	551m	DTG-	100,000W
	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)	551m	DTG-	100,000W
	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 66 TBN UK,
COM4 SDN	H -3dB	C23 (490.0MHz)	551m	DTG-8	50,000W
	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)	528m	DTG-8	50,000W
	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)	528m	DTG-8	50,000W
	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)	528m	DTG-12	5,000W
	from 29th September 2014: 7 NvTv,
NIMM	H -40dB	C48 (690.0MHz)	551m	DTG-	10W
	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?

BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,044km northeast (51°)
to BBC Northern Ireland region - 46 masts.

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 Fields

Transposer

Central Belfast

61 homes

How will the Divis (Northern Ireland) transmission frequencies change over time?

	1950s-80s	1984-97	1997-98	1998-2012	2012-13	4 Mar 2020
	VHF	A K T	A K T	A K T	K T	W T
C1	BBCtv_waves
C21		C4_waves	C4_waves	C4_waves	+D3+4	D3+4
C23					SDN	SDN
C24		ITV_waves	ITV_waves	ITV_waves	BBCB	BBCB
C26					ArqA	ArqA
C27		BBC2_waves	BBC2_waves	BBC2_waves	BBCA	BBCA
C29					ArqB
C30						LBT
C31		BBC1_waves	BBC1_waves	BBC1_waves
C33						com7
C34						com8
C36						_local
C48					NIMM	NIMM
C55_{tv_off}						com7_{tv_off}
C56_{tv_off}						COM8_{tv_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

Local transmitter maps

Divis Freeview Divis DAB Divis TV region BBC Northern Ireland UTV

Which companies have run the Channel 3 services in the Divis transmitter area

Oct 1959-May 2006	Ulster Television
May 2006-Dec 2014	UTV plc

Feb 1983-Dec 1992	TV-am•
Jan 1993-Sep 2010	GMTV•
Sep 2010-Dec 2014	ITV 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.

Is the transmitter output the same in all directions?

J

John Reilly
10:23 PM

Hi. I live in the Republic and can get most of the . When I re-tuned this afternoon I had ITV3 ITV2+1 5USA and some others. However around 5 P.M. this evening the channels on COM4/SDN disappeared. Does anyone know why this might have happened?

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John Reilly's 1 post IE flag

L

lezzie
10:54 PM

hello everyone i have been getting a message the format is no supported when i try to watch rte 1 but in the morning at about 6:30 of the 24oct12 i had no problem with it i can hear the sound but can see anything does anyone have the same problem am in dunmurry
please me dont know what to do

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lezzie's 1 post GB flag

C

Carl

_{sentiment_satisfied}Bronze

11:23 PM

After a day of retuning quite a number of TVs I noticed the following on EPGs

TVs with put the NIMM RTE from at 51 52 and 53.

Those with aerials for Claremont Cairn RTE, they appear between 800 to 807.

The four Northern Hd appear high up the as well so do check your full EPG or channel guide.

From checking the Claremont Cairn today a amp is still required at least in the Antrim area.

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Carl's 51 posts GB flag

F

Fergus Maunsell
11:44 PM
Belfast

KMJ,: Thanks for answering my query.

Now have to get a Box.

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Fergus Maunsell's 6 posts GB flag

Fergus's: F's Freeview map F's terrain plot F's frequency data F's Freeview Detailed Coverage

F

Fergus Maunsell
12:11 AM

Mini FASHION TRUE HD DVB-T H.264 MPEG4 TV BOX(Black,DG-OT3901)

Mini FASHION TRUE HD Digital DVB-T Terrestrial Receiver H.264 MPEG4 TV BOX(Black,DG-OT3901) - Digi4you.co.uk

Would this hd box for Belfast (BT96TZ)

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Fergus Maunsell's 6 posts GB flag

M

Michael

_{sentiment_satisfied}Gold

12:18 AM

Fergus Maunsell: Only if you are able to receive , as it will not pick up any of the (DVB-T2) .

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Michael's 358 posts GB flag

L

Lorri Henry
12:23 AM

I have retuned Samsung EH5000 Series 5 Full HD LED TV and can get all the NI HD but not the RTE ones . My postcode is bt39 9he
Any thoughts?
Thanks

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Lorri Henry's 2 posts GB flag

N

Neil Robertson
9:28 AM

Dave Lindsay
Thanks for your comments..
I can receive the multiplexes from both local relays here in without a problem so
the exercise (more of a technical bit of fun really) was to see if I could receive
more by receiving the multiplexes which are not on my local relays directly from a main site. However yesterday after switch-over the levels on the SDN, ARQA and ARQB multiplexes from are much, much lower(as I had feared due to the lower transmitter power ) than the BBC and D3+4 multiplexes so it's not really practical unless I use a huge high- .
I have as well so can get them that way.
Thanks

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Neil Robertson's 1 post GB flag

D

Dave McGeown
11:14 AM

Hi,

I live in Newtownabbey and my TV is picking up BBC HD, BBC One HD and UTV HD. I haven't seen any of the RTs just yet but I'll do a bit more checking some other time.

I had to retune some elderly relatives' TVs and last night. One set was in , which we got 21 TV channels and 14 radio. This was on 2 TVs. From the looks of the EPG, it looks like PSB1 and PSB2 channels mainly. The other relatives in Ballyclare however were getting a full 120+ channels it would appear.

I also checked with my brother if he rescanned my dad's TVs, who lives just south of the Border in Louth. He said that he also has 21 channels.

Why would this occur? Incorrect aerials and/or wrong direction?

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Dave McGeown's 2 posts GB flag

F

Fergus Maunsell
11:41 AM

Looking at amazon for Box as my TV is a Samsung UE22D5003 22 Inch Full HD 1080p Edge-lit LED TV

Amazon.co.uk: Electronics & Photo (BT96TZ)

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Fergus Maunsell's 6 posts GB flag

Page 27

Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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