Full Freeview on the Divis (Northern Ireland) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 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.
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._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
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 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.
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.
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 | BBCtvwaves | ||||||||
C21 | C4waves | C4waves | C4waves | +D3+4 | D3+4 | ||||
C23 | SDN | SDN | |||||||
C24 | ITVwaves | ITVwaves | ITVwaves | BBCB | BBCB | ||||
C26 | ArqA | ArqA | |||||||
C27 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
C29 | ArqB | ||||||||
C30 | LBT | ||||||||
C31 | BBC1waves | BBC1waves | BBC1waves | ||||||
C33 | com7 | ||||||||
C34 | com8 | ||||||||
C36 | _local | ||||||||
C48 | NIMM | NIMM | |||||||
C55tv_off | com7tv_off | ||||||||
C56tv_off | COM8tv_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
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Wednesday, 24 October 2012
G
gerry3:17 PM
Londonderry
sweetymillar: Cannot get UTV channels SD or HD from LIMavady also having problems not getting ITV2,ITV3 Getting ITV4 but not Sky News. Anyone can help?
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gerry's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
R
Robin6:39 PM
Significant increase in BT23 area for us on channels such as Dave, PickTV (all the weaker ones). We are positioned hight in behind a hill and have gone from 35 - 40% up to 81% signal strength. Hopefully that will be the end of breakup due to poor signal strength.
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J
JK7:16 PM
Craigavon
Sorry for cross posting, I made a few posts on the Clermont Carn page but its more relevant here;
In case this is helpful to someone else trying to get the NIMM. My earlier post details signal levels but 35% on C39 and 80% all others.
I use a variable signal booster to feed a loftbox and 4 other rooms. If I adjust the booster down to a point where signal level is 60% on main channels ( and all work well ), the RTE mux disappears.
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JK's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
F
Frankie T7:20 PM
Hi, I can get RTE ok so I assume this means my HD TV has a HD receiver but I cannot get any HD channels. I've tried the Freeview reset procedure but still can't get BBC HD. any thing else worth trying?
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M
Mike Dimmick7:35 PM
Frankie T: Unfortunately the 'HD TV' logo was defined by a Europe-wide body a few years before the UK regulator and broadcasters decided how we would transmit HD. The 'HD TV' logo only requires support for MPEG-4 AVC video transmitted in DVB-T multiplexes. The UK HD services use the newer DVB-T2 standard. It's quite likely that your TV doesn't support it. Look for the 'Freeview HD' logo or check for DVB-T2 support in the manual.
Transmissions in the Republic of Ireland use the MPEG-4 AVC standard in DVB-T multiplexes, so your TV can pick them up. RT transmitted from UK transmitters, the 'Northern Ireland Mini-Mux' or NIMM, uses DVB-T2.
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F
Frankie T8:15 PM
Thanks Mike, At least now I know not to waste more time trying. Picked what looks like a great PVR on a popular shopping web site.
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J
jerry8:35 PM
hi I live in the dungannon area, I can pick up the RTE channels but am only getting sound but no picture through my freeview box. Any suggestions good folks?
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F
Fergus Maunsell9:51 PM
Belfast
I live in South Belfast with aerial pointing to Divis and Black mountain.
I am still only receiving SD TV channels after a few re-tune toady. I was hoping to get RTE 1, 2 and TG4
I have a Samsung UE22D5003 22 Inch Full HD 1080p Edge-lit LED TV.
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Fergus's: mapF's Freeview map terrainF's terrain plot wavesF's frequency data F's Freeview Detailed Coverage
K
KMJ,Derby9:53 PM
jerry: You need a Freeview box that supports MPEG4 to receive a picture on RTE. Either a BT vision box or a Freeview HD box would be suitable, otherwise a use Saorview box.
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K
KMJ,Derby10:19 PM
Fergus Maunsell: Your TV appears to be listed as "HD ready" which means that it is ready to display a HD picture when fed via the HDMI connection with a suitable HD source, such as a Freeview HD box, HD satellite box or blu-ray player. You need a Freeview HD box (or receiver with in-built tuner which supports DVB-T2) to receive both the Freeview HD channels from Divis and the NIMM from Black Mountain.
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