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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Thursday, 21 November 2013
P
PJH12:02 AM
Samantha: Might be better to get someone out to have a look at your aerial set up just to make sure it isn't damaged.
At your location you should be receiving perfect reception from Divis, the NIMux at Black Mountain, and Saorview from Clermont Cairn.
I'd recommend Newtownabbey Aerials. Reasonably priced and he knows what he's doing.
You need a Freeview HD set top box or television in order to receive RTE or the NIMux from Black Mountain.
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P
P. Kieran Ward10:57 PM
Hi PJH!
Re: Samantha's problem - I would be very careful regarding recommending any specific business on this forum. While you were maybe happy with the service you may have received from the company, any outcome for someone else may not meet their expectations and might have an effect on the credibility of this site.
P. Kieran Ward
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P
P. Kieran Ward11:10 PM
Michael,
You were thinking that Samantha's problems might be because of interference from the Saorview's Mt Leinster transmitter - www.ukfree.tv link icon C23 (490.0MHz). Do you realise that this transmitter is over 200miles away from Garrickfergus?
Regards
P. Kieran Ward
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P
P. Kieran Ward11:12 PM
Hi Samantha!
Have you tried resetting your receiver to 'Factory Reset' and then rescanning all the local UHF channels?
Regards
P. Kieran Ward
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M
Michael11:19 PM
P. Kieran Ward: You realise that I put "Pauric: " at the start of my post? ;)
Just pointing out it could be that, as I don't know his exact location.
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Friday, 22 November 2013
P
PJH7:19 PM
Kieran: I don't think any of that's the cause of Samantha's problems. We're simply beating around the bush here.
She should have perfect reception from Divis and the NI mux from Black Mountain, as well as Saorview from Clermont Cairn (try Digital UK's postcode checker if you don't believe me). Mt Leinster shouldn't even come onto the equation in Carrick.
and fine, if you don't want me to mention a specific installer that's no problem.
However, I'd have a look through Yellow Pages and get someone out (whoever she chooses). Looks like an aerial problem to me. Something like a loose connection or possibly water ingress.
You can spend a lot of time messing around with this type of thing and get nowhere. Better to get a professional to sort out the problem in my opinion.
For want of repeating myself, Divis should be absolutely no problem for someone living in Carrick.
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Monday, 25 November 2013
S
Samantha9:11 PM
Carrickfergus
Oh dear, I didn't realise anyone was commenting, sorry guys. Just for an update, it fixed itself the next day and has been perfect since, until last night when interference started on all channels included in Channel 21. It's mostly just that Channel so I think it might just be ongoing engineering. I was lucky enough to have sky before I moved house so honestly have no idea if this interference is normal, it certainly wasn't in Glengormley a few years ago. Well thanks for the suggestions everyone but I think i'll leave it as is. Sporadic and tempermental tv is better than no tv :)
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Samantha's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
Tuesday, 10 December 2013
P
PJH1:42 AM
COM 7 from Divis is now on air.
10.5 kw rather than 5 kw.
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PJH: OK. I am waiting for Ofcom to confirm any new figures.
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Friday, 20 December 2013
I live in Newtownabbey in the Carnmoney Hill fill-in area. However I have bypassed that tx to get the additional services from Divis, and am receiving COM7 well with 60% strength / 100% quality.
Earlier this week I was receiving test tx from the local TV on C30, but with signal at 27%/10% it was mostly break-up. Last night however the signal on C30 was much stronger at 46%/80%, but with occasional severe dips to 10%/10%. Anyone else seeing this and any idea what is happening? Presumably the signal is being tweaked?
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