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
|
|
Thursday, 24 October 2013
P
P. Kieran Ward11:28 PM
Belfast
Anto: Do you know which transmitter you are receiving Freeview from? I think you may be getting your Freeview from the Newry South transmitter (https://ukfree.tv/txdetail.php?a=IJ093255) or Newry North transmitter (https://ukfree.tv/txdetail.php?a=IJ090284). Both of these transmitters are Freeview Light transmitters which means that they don't carry commercial stations. Both masts are public service broadcasting (PSB) transmitters and does not provide these commercial (COM) channels: 4Music, 4seven, 5 Later, 5*, 5USA, Al Jazeera English, Al Jazeera HD, Challenge, Channel 5 +1, CITV, Community Channel, Dave, Dave ja vu, Drama, E4+1, Film 4 +1, Food Network, ITV 2 +1, ITV 3, ITV 3 +1, ITV 4, Movie Mix, pick, Quest, Really, RT English , Sky News, The Zone, Travel Channel, True Entertainment, VIVA, Yesterday.
If by any chance you can receive your Freeview signals from Divis do you get anything on UHF Channels 23 or 29? If you do - it is surprising that you are not receiving anything on UHF Channel 26 as they all broadcast on the same power output (50,000W).
Let me know which Freeview transmitter are you receiving your Freeview from!
Regards
Kieran (North Belfast)
link to this comment |
P.'s: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
P
PJH11:44 PM
Or Possibly the Kilkeel transmitter Kieran., which is also Freeview light.
link to this comment |
Friday, 25 October 2013
P
P. Kieran Ward11:44 PM
Hi PJH!
Possibly it could be Kilkeel but if by chance Anto is using only one aerial and if it is pointing towards Saorview's Clermont Carn transmitter I would believe that the Newry transmitters would be more in line. Of course until Anto gets back to this forum we can only speculate!
If he gets back in touch we all may be able to advise him.
Regards
Kieran (North Belfast)
link to this comment |
Monday, 28 October 2013
S
sellis8:33 PM
what are the lights at the transmitter tonight? s north belfast
link to this comment |
Monday, 4 November 2013
P
PaulN8:10 AM
Anyone else experiencing reception issues from Divis this morning ? I have much reduced power on all channels on all receivers while one STB reports no signal on them all. I just checked that my aerials haven't fallen off the roof !
link to this comment |
P
PaulN1:17 PM
Turns out I am special again... My labgear loft amplifier died overnight. Changed its mains fuse but it is not powering up. One for the bench or bin later.
Bypassed it with a splitter for a couple of TVs and all is good again. Interestingly the only channel that needs any amplification off the back of my log periodic aerial for division is the nimm on C39 but quality is perfect despite the low strength.
I had noticed some artefacts on BBC HD channels last night - that must have been dying gasp of the labgear unit but I never gave it a second thought.
link to this comment |
Tuesday, 5 November 2013
P
PaulN1:06 PM
Bench tests show the input side of the transformer has burnt out for reasons unknown but it will be easy to graft on an alternative 12V power source to get my labgear unit operational again. Darned if I am paying 60-80 quid for a new one !
link to this comment |
Friday, 8 November 2013
P
PaulN 9:37 PM
Back in business with repaired loft amp. It must have been slowly dying for a while cos I am now seeing perfect picture on C56 SaorView mux 2 while at launch it was abysmal.
link to this comment |
J
jb3811:53 PM
PaulN : Although you have now rectified your problem, but purely for info purposes transformers used in boosters etc are all fitted with miniature thermal fuses strapped to the outer windings on the primary side of the transformer and are usually covered by a layer of tape.
All you might notice is a small lump under the outer covering of the primary windings.
link to this comment |
Saturday, 9 November 2013
P
PaulN 6:51 PM
That's interesting cos is there is a wee layer of tape on there. Everyday a school day ! Cheers
link to this comment |
Select more comments
Your comment please