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 
_______
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
|
|
Saturday, 24 March 2012
P
Peter Henderson3:05 PM
Newtownabbey
Notice Caldbeck is quite strong this afternoon so obviously that's the problem since it shares a number of frequencies with Divis.
Hopefully, this wont be a problem after DSO.
| link to this comment |
Peter's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
K
KMJ,Derby3:59 PM
Peter Henderson: Remember that after switchover the same frequencies continue to be shared with Caldbeck on the COM muxes,which increase power to 50kw on 24th October 2012 at both Caldbeck and Divis. Reception of the PSB muxes should be better though after changing to the frequencies used by the current analogue services.
| link to this comment |
Sunday, 25 March 2012
P
Peter Henderson12:27 AM
Indeed KMJDerby, hopefully.
Can't figure out why, pre DSO, Calbeck had Freeview ERPs of 10 and 3.2 KW while Divis is restricted to 2.3 and 1.6 kw. Even 10 kw would make a big difference here.
It's a real pity Carnmoney Hill (the nearest transmitter to me) is Freeview Lite post DSO as well.
Hopefully, Caldbeck wont be a problem here after the power increase at Divis. Even 50 kw should make a big difference. .
| link to this comment |
Monday, 26 March 2012
M
MikeW12:02 PM
Has anyone noticed reception dropping in the last week for Mux2 Chans (UTV,Ch4, Ch5 etc), while all other Muxs & Chans remain full strength? Is there current maintenance?
My wife has complained about "No signal" for half of Corry and Titanic!
| link to this comment |
T
Terry Gaut1:48 PM
Coventry
I live in a block of 11 flats,where we share a communial ariel,all new equipment fitted in each home and a new ariel fitted to the roof, for the digital change over.
There have been very few problems until the past week,when we have lost signal for up to 5hrs a day,since the sun has been shining.
Between 10.00a.m and 3.00p.m and a hour later since the clocks were put forward.
Any advice,please?
| link to this comment |
Terry's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
P
Peter Henderson5:47 PM
Mike W/Terry Gaut: See my previous posts.
It's all due to conditions. Caldbeck is bombing in here today so obviously that's the problem (Caldbeck shares a number of frequencies with Divis).
You'll just have to wait until this high pressure disappears.
Hopefully, this kind of thing wont happen after 24th October when Divis has a massive power increase to 100/50 kw. Current ERP levels are only a measly 2.3/1.6 kw.
| link to this comment |
Wednesday, 28 March 2012
J
Jordy10:49 AM
Caldbeck was swamping Divis in parts of Lisburn yesterday afternoon...
Peter i wouldn't worry about Carnmoney being Freeview Lite in a few years time all Tx's will be down to 3 psb multiplexs if what is being proposed goes ahead. Ofcom have postponed the 600mhz auction as the DTT allocations are to be used for mobile services this has been agreed at a world conference.
In a nutshell the death of tv in a terrestrial format has begun, if they close the c/d group and force over 40% of the countries transmitters to be retuned, transmitters such as Mendip. Winter Hill, Limavady, Huntshaw to name a few requiring aerial changes. It would be utter chaos...
| link to this comment |
Sunday, 8 April 2012
P
Peter Henderson9:15 PM
Well, hopefully it wont happen Jordy.
Would be money in Sky's pocket if it did.
| link to this comment |
Thursday, 12 April 2012
L
LEONARD BRETT2:21 PM
will I be able to pick up freeview from a 64
element antenna mounted in my roofspace
postcode BT196BA
thanks
| link to this comment |
Friday, 13 April 2012
P
Peter Henderson7:25 PM
Leonerd Brett:
Digital UK's postcode checker indicates Divis reception in youir area should be fine, post DSO.
Be careful the gain of your aerial isn't too high as this will cause problems when Divis icreases power to 100/50 kw on the 24th October.
| link to this comment |
Select more comments
Your comment please