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 25/11/2024 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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Monday, 29 October 2012
S
Sinead8:32 PM
Hi Dave and Carl
I haven't done anything with the aerial but rescaned the channels on the I-Can box last night and I now I can see TG4, RTE 1, RTE 2 on 51, 52 and 53 respectively on the EPG. I can also see what programmes are on using the EPG but I have no picture or sound. Any thoughts?
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C
Carl9:24 PM
Antrim
Sinead
Sounds like your down to two options either the box is bad or its a signal issue. You could take the box to your friends and plug it in there to prove the box is working correctly that would rule that one out.
It is a case of having to rule it out.
If your aerial has been up for quite a while it may be an old Group A type which cuts off at channel 37 and the NIMM (RTE Black Mountain) is transmitted on channel 39 which is the Group K type which picks up to channel 48. But I would check the box first.
The customer who I was out with got a second I Can box which again would not even let you into the menu.
hopefully this helps.
Regards Carl
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Carl's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
S
Sinead10:51 PM
Thanks Carl, learning so much about TVs since the DSO. The box has worked in another friends house and they picked up RTE with it. If RTE is showing on 51, 52 and 53 does that mean that my aerial is the K class?
I also have another couple of friends with the I-Can box, one of them could not access the menu or EPG however when they pressed the DISP buttom and moved from 1080p to 560p they could access the menu, maybe this might work for your client.
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M
m collins11:16 PM
Belfast
Dave
thanks for explaining.
I have identified my problem: my recorder is a 'free sat' box not 'free view'.
(On the auto scan it did not pick up RTE.
However when I scanned for ' other dishes' , I think, it did show RTE as a 'pay for' channel and that it was encrypted.)
I need to purchase a recorder which has a free view tuner to get over the problem.
M Collins
M Collins
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m's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 30 October 2012
C
Carl9:39 AM
Antrim
Sinead
Thanks for the box info I will remember that one.
Hard to say, if it was put up a couple of years ago I would expect it to be Gp K (ch21 - 48)or a wideband (ch21 - 69) type which would be fine.
If its very old then it could be a Gp A (ch21 - 37)which is struggling to pull channel 39 in.
Think you will need someone out on this one.
Can't think of anything else.
Regards Carl
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Carl's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
C
Carl9:46 AM
Antrim
M Collins
The RTE you picked up is the Sky transmittion which requires a card.
Dont forget the box needs to be Freeview HD not just Freeview.
Recording boxes are easy to get at the mitute, non recording seem to be selling out quickly.
Regards Carl
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Carl's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Wednesday, 31 October 2012
P
Peter1:26 AM
Carl
May I ask. Why I receiving these Muxes on wrong frequencies.
Mux D3+4 is on C42(642.0MHz) and isn't on C21(474.2MHz).
And Mux BBCA is on C45(666.0MHz) and isn't on C27(522.0MHz).
Regards Peter (54.6054,-5.9849)
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Peter: Because you're receiving them from Black Mountain and not Divis!
Black Mountain is a Public Service relay which means that it doesn't transmit the Commercial (COM) channels which are SDN, ArqA and ArqB.
Divis is on a bearing 280 degrees and your aerial will be horizontal. Black Mountain is at 232 degrees and your aerial will be vertical.
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P
Peter1:33 PM
Dave
I see. It is bad news for me. Anyway I am now wiser. Thank you for explanation.
Regards Peter (54.6054,-5.9849)
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Friday, 2 November 2012
T
Tony 10:42 PM
Hi i have a Samsung PS50A457P1 with built in Free-view, it picks up UK tv but says 'HD not supported' for all the Irish stations. I also have a Sony Bravia and it shows them no problems, any ideas?
BT32 5HB
Tony
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