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.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Divis (Northern Ireland) transmitter._______
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, 25 December 2013
P
P. Kieran Ward1:43 AM
Gavin!
COM 6 multiplex is on UHF Channel 29 from Divis at 50,000 watts where as LBT multiplex is on UHF Channel 30 at 5,000 watts but I would be very surprised if it is interference from COM 6 multiplex. The test signal with me in North Belfast on EPG 791 and 792 seem to be fine here.
P. Kieran Ward
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P
PJH12:22 PM
Yep, breaking up here today again.
It's the signal quality that appears to be fluctuating widely rather than the strength so it may be part of the testing process.
I've also noticed some receivers are better at receiving it than others.
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Monday, 30 December 2013
H
Hannah1:40 PM
Bt34 4ue
I am receiving no signal to my freeview TV. My neighbour is having the same problem, so is unlikely to be something to do with the aeriel. This has been ongoing since 06:30 this morning. BBC1cam snack. It only momentarily
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P
P. Kieran Ward11:35 PM
Hannah! Your location is Annalong from your postcode. I take it that you get your Freeview TV signal from the Kilkeel transmitter. If this is correct there doesn't appear to be any problems at this transmitter. The transmitter is a Freeview Light Transmitter which will only carry fewer channels than Divis. If you know about UHF channels the Kilkeel Transmitter uses three UHF Channels to supply 40 stations on UHF channels: 39, 42 and 45. Have a look at the link: Kilkeel (Northern Ireland) Freeview Light transmitter | ukfree.tv - 11 years of independent, free digital TV advice
I hope you get your problem sorted!
Regards
P. Kieran Ward (BT14 6NQ)
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Tuesday, 31 December 2013
G
Gavin5:03 PM
This is very wierd though. Last night C30 was sitting firmly on 50% strength & 90-100% quality with no picture breakup. Then, without warning, it dropped to 0%/0% and disappeared for half a minute or so before returning at the previous levels. This happened a few times while I was monitoring it.
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Wednesday, 1 January 2014
W
Wayne Cochrane1:34 PM
Nothing weird: just that your receiver is right on its decoding threshold & a small drop in signal is enough for it to lose signal lock.
Most receivers will go from 100 - 0% with very little provocation.
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J
James Vance 8:30 PM
Belfast
Hi bought a new tv with freeview what type aeril would I need for bt155ag
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James's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
P
P. Kieran Ward11:31 PM
Hi James Vance!
I live quite close-by your address and can I start by asking you for the make and model of the TV you bought. This will tell me what stations you will be able to receive.
It depends on the type of tuner in the set so that is why I ask the question. Your area is served by the Divis Digital Freeview transmitter but depending on the make and model of your set you may be able to also receive the 3 RTE/TG4 stations transmitted from Black Mountain (NI Mini Multiplex).
I used No: 27 in your street to get the information contained in this link: Coverage Checker - Detailed View
This is the Digital UK site's Post Code checker.
Have a look at this link and get back to me.
Regards
P. Kieran Ward (BT14 6NQ)
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Friday, 3 January 2014
D
Daniel Trimble7:40 PM
Hi does anyone know of a company called Aerial Services NI based in Belfast. Can't find a website anymore and the phone's are not answered. Perhaps they no longer trade? They used maybe still do looked after our apartment block in Annadale Embankment. The letting company went bust and can't get a hold of anyone our flats have had no signal since Tuesday night. Thanks
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J
James Vance 8:21 PM
Belfast
Hi Kieran the tv is a samsung ue28 f4000 freeview tuner hope this helps to find what type of aerial I would need
link to this comment |
James's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
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