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.
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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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Wednesday, 19 October 2016
Transmitter engineering
5:31 AM
5:31 AM
DIVIS transmitter - DAB: BBC National DAB Radio Weak Signal from 13:26 on 17 Oct to 16:28 on 17 Oct. [BBC]
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Transmitter engineering
8:30 PM
8:30 PM
DIVIS transmitter - DAB: BBC National DAB Radio Weak Signal from 13:26 on 17 Oct to 16:28 on 17 Oct, BBC National DAB Radio Off Air from 19:19 today. [BBC]
link to this comment |
Transmitter engineering
10:09 PM
10:09 PM
DIVIS transmitter - DAB: BBC National DAB Radio Weak Signal from 13:26 on 17 Oct to 16:28 on 17 Oct, BBC National DAB Radio Off Air from 19:19 today to 21:05 today. [BBC]
link to this comment |
Thursday, 20 October 2016
Transmitter engineering
5:31 AM
5:31 AM
DIVIS transmitter - DAB: BBC National DAB Radio Weak Signal from 13:26 on 17 Oct to 16:28 on 17 Oct, BBC National DAB Radio Off Air from 19:19 yesterday to 21:05 yesterday. [BBC]
link to this comment |
Transmitter engineering
11:31 AM
11:31 AM
DIVIS transmitter - DAB: BBC National DAB Radio Off Air from 19:19 yesterday to 21:05 yesterday, BBC National DAB Radio Weak Signal from 13:26 on 17 Oct to 16:28 on 17 Oct. [BBC]
link to this comment |
Friday, 21 October 2016
Transmitter engineering
5:31 AM
5:31 AM
DIVIS transmitter - DAB: BBC National DAB Radio Weak Signal from 13:26 on 17 Oct to 16:28 on 17 Oct, BBC National DAB Radio Off Air from 19:19 on 19 Oct to 21:05 on 19 Oct. [BBC]
link to this comment |
Saturday, 22 October 2016
Transmitter engineering
5:31 AM
5:31 AM
DIVIS transmitter - DAB: BBC National DAB Radio Off Air from 19:19 on 19 Oct to 21:05 on 19 Oct. [BBC]
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Saturday, 7 January 2017
P
Peter1:58 PM
Dungannon
I am currently having problems with freeview. the channels i do get are pixelling and there are a great deal of channels i dont get at all. it was all ok until last night when the channels on my three tvs started to pixel or disappear. i have retuned as recommended but it makes no difference. are there problems with my local transmitter. My postcode is BT71 4SG
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Peter's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
S
StevensOnln13:38 PM
Peter: Retuning is never recommended when you have a signal problem as it deletes all of your correctly tuned channels before attempting to scan for new ones. There are no reported problems with Divis so it is most likely something at your end. Start at the back of the TV and check all cables and connections are in tight with nothing loose or damaged, then work your way back towards the aerial as far as you can safely access checking everything as you go. Once you have some channels back, you'll probably need to retune again to restore the channels deleted during your earlier retune.
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Monday, 27 February 2017
Transmitter engineering
4:33 PM
4:33 PM
DIVIS transmitter - Freeview: BBC Digital TV Off Air from 15:25 today to 15:32 today, HD Digital TV Off Air from 15:24 today to 15:33 today. [BBC]
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