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, 2 February 2011
Allen: I would start by checking the things on the Single frequency interference | ukfree.tv - independent free digital TV advice page.
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Friday, 4 March 2011
S
Satfix Belfast12:23 AM
Hi do you know why Divis's Freeview signals are so erratic over the past days Having real trouble setting up aerials because the signal strength is so hit and miss. Metered channels 23, 26 and 29 are completely wrecked Areas we installed aerials before seem to be suffering no signal and we have lots of moaning customers when we check systems we find no problems only crappy signals. Please advise......
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P
Peter Henderson1:55 AM
This is due to lift conditians Satfix i.e. the high pressure. I'm afraid you'll have to put up with it until the weather conditions change.
Hopefully, once DSO happens (Nov. 2012) this will be a thing of the past.
Receiving Caldbeck in this area of Newtownabbey off and on over the last few days.
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Peter Henderson: Yes, the COFDM-only networks are be much more capable of rejecting stray signals.
You can see this in that the switched regions have had no problems where unswitched regions have over the last few years.
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Monday, 14 March 2011
P
Phillip9:11 PM
Briantist.
How do I pick up Sky Three on my freeview or my freesat box. (Crumlin Northern Ireland ie. Divis transmitter for freeview.)
Thank You for previous advice.
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Tuesday, 15 March 2011
Wednesday, 16 March 2011
P
Peter Henderson9:13 PM
Lost all the BBC signals this evening. Conditions ?
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Thursday, 17 March 2011
P
Phillip11:22 AM
Thanks Briantist. What is the frequency for Pick TV.
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M
Mike Dimmick12:02 PM
Reading
Philip: On Freeview, Pick TV is on Multiplex C, RF channel 48/690 MHz. Your box should list it at channel number 11.
Pick TV is not available on Freesat because it is scrambled with Sky's Videoguard system. It is a free-to-view channel if you have a Sky box with a 'Freesat from Sky' viewing card, or an active subscription - it may also be available if you have a recently-expired subscription. It's at channel 152 in Sky's EPG.
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
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