Full Freeview on the Divis (Northern Ireland) transmitter
 | 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.
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 
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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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Saturday, 23 March 2013
C
C Reade10:53 PM
Would guess its an antenna problem at Divis. Could be off quite a while. Wouldnt like to be climbing that thing this time of night!
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T
Tony Mc11:02 PM
@Eddie and C Reade. I'm in west Belfast just under the Divis mountain, all my channels are out from 10 o'clock also... Hope this can be sorted ASAP... Seems the weather is in a foul mood..... Any updates on when this will be fixed?.
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E
Eddie11:05 PM
Found this - seems to give more info than I had initially found. Might help you in future ...
Radio & Television Investigation Service - Diagnostic form (BT118LP)
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N
norman henderson11:16 PM
Carrickfergus
I have lost all channels and I am not receiving any picture I also have BT freeview. I am receiving RTE channels
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norman's: mapN's Freeview map terrainN's terrain plot wavesN's frequency data N's Freeview Detailed Coverage
T
Tony Mc11:17 PM
Thanks for that Eddie... Seems theres nothing we can do but wait.. The weather's already effected the electricity and theres also a problem with emergency services taking 999 calls , the calls are being diverted to Scotland for some reason... So much for spring weather eh?
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Eddie11:51 PM
Belfast
Cheers for that Peter
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Eddie's: mapE's Freeview map terrainE's terrain plot wavesE's frequency data E's Freeview Detailed Coverage
Sunday, 24 March 2013
D
Dave12:09 AM
None of the COM4 channels are working for me everything else is back to normal.
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P
P. Kieran Ward12:30 AM
Belfast
Hi all! Here is one way to get over 'No Signal' problems is the way my daughter used when Divis was off. We were watching Law and Order on Channel 5 and when Divis went down was to watch the remainder of the show via the internet. It looks like some of the muxs are still off air at 12.30am Sunday.
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P.'s: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
P
Peter Henderson5:07 PM
Another good reason to have Freesat as a back up, even if you have good terrestrial reception.
I well remember the major fault at Divis in the late 70's (or was it the early 80's ?) when we had no TV for almost a week. The transmitter was subsequently on low power4 for several months afterwards.
Satellite or cable didn't exist in those days, so it was all very frustrating!
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