Full Freeview on the Limavady (Northern Ireland) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 55.108,-6.887 or 55°6'30"N 6°53'14"W | BT49 9LJ |
The symbol shows the location of the Limavady (Northern Ireland) transmitter which serves 45,000 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.
_______
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
H/V: aerial position (horizontal or vertical)
The Limavady (Northern Ireland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which Freeview channels does the Limavady 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
H/V: aerial position (horizontal or vertical)
The Limavady (Northern Ireland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the Limavady transmitter?
BBC Newsline 0.6m homes 2.5%
from Belfast BT2 8HQ, 1,051km northeast (51°)
to BBC Northern Ireland region - 46 masts.
Are there any self-help relays?
Elliotts Hill | Transposer | 13 km SE Ballymena, Co. Antrim | 90 homes (according to B9 Energy) |
How will the Limavady (Northern Ireland) transmission frequencies change over time?
1984-97 | 1997-98 | 1998-2012 | 2012-13 | 4 Sep 2019 | |||||
C/D E | C/D E | C/D E | C/D E T | B E K T | |||||
C40 | SDN | ||||||||
C41 | BBCA | ||||||||
C43 | ArqA | ||||||||
C44 | D3+4 | ||||||||
C46 | ArqB | ||||||||
C47 | BBCB | ||||||||
C48 | _local | _local | |||||||
C49tv_off | ArqB | ||||||||
C50tv_off | BBCA | ||||||||
C54tv_off | SDN | ||||||||
C55tv_off | BBC1waves | BBC1waves | BBC1waves | BBCB | |||||
C58tv_off | ArqA | ||||||||
C59tv_off | ITVwaves | ITVwaves | ITVwaves | D3+4 | |||||
C62 | BBC2waves | BBC2waves | BBC2waves | ||||||
C65 | C4waves | C4waves | C4waves |
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 | 100kW | |
BBCA, D3+4, BBCB | (-7dB) 20kW | |
SDN, ARQA, ARQB | (-10dB) 10kW | |
Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D* | (-21dB) 800W |
Local transmitter maps
Limavady Freeview Limavady DAB Limavady AM/FM Limavady TV region BBC Northern Ireland UTVWhich companies have run the Channel 3 services in the Limavady transmitter area
|
|
Monday, 21 May 2012
J
Jim Cassidy5:23 PM
Thanks Dave Lindsay. Should have read the date on that posting before posting my question.
link to this comment |
Tuesday, 22 May 2012
M
mrdtv6:48 PM
London
This is likely to be a full power post DSO test. You must be able to do manual retuning.
The Limavady transmitter 23 May 2012
Engineering transmitter work will take place between 00:01hrs and 06:00hrs.
TV services that will be affected:
Analogue services BBC1, BBC2, ITV and Channel 4
Digital services - PSB1, PSB2, PSB3, COM4, COM5 and COM 6.
link to this comment |
mrdtv's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Friday, 21 September 2012
G
Gerry11:12 PM
Limavady Main Transmitter -freeview
I brought brand new built in TV Freeview Hitachi and cannot get Liable TV (digital) Very weak signal, Can you look into this for me and check and test this transmitter and if RTE channels will be on Freeview system in NI Limavady transmitter throw freeview -How many channels you receive and your signal strength will also depend on the transmitter. Transmitter at limavady needs to boosted ASAP, Donegal viewers have to have a say on this issue under the realms of the Good Friday agreement.
link to this comment |
Gerry: All Freeview transmitters use lower power than after switchover which means that they have limited coverage, and hence there will be some who find that they are very weak.
You will have to wait until 24th October when the signals will be boosted.
See Northern Ireland "mini multiplex" (NIMM) | ukfree.tv - 10 years of independent, free digital TV advice
Limavady will not be carrying RTÃâ° and TG4. There are three transmitters in the North that will be doing so (follow the link above): Brougher Mountain, Black Mountain (adjacent to Divis) and Carmoney Hill.
The idea is that these transmitters supplement the service of the Saorview transmitters. See the Saorview coverage map (click "Show Coverage"):
Step 1: Check Coverage | SAORVIEW
The transmission mode of the signals from the three Freeview transmitters will be DVB-T2 which is that of high-definition broadcasts which means that a HD receiver will be required (for reception of the Northern Ireland Mini-Multiplex).
link to this comment |
Gerry: Further to the above, can you not receive RT from one of the Saorview transmitters?
link to this comment |
Saturday, 22 September 2012
Tuesday, 25 September 2012
G
Gerry6:24 PM
Yes Dave Lindsay Gerry Here Email address for DigitalUK Northern Ireland is northernireland@digitaluk.co.uk I am getting good terrestial TV signal getting Saorview from Moville Transmitter but Highland radion mast is blocking us in Burnfoot Donegal.still not picking up no digital signal who owns tv mast at Limvady any contact details for them? Saorview shoulf be going throw Limvady on Freeview.siginal is very weak indeed i got brand new tv with Freeview built in only 2 months ago in argos.Please Help any help would be greatly appreciated.
link to this comment |
Gerry: My understanding is that the pre-switchover digital TV networks in the UK and in Ireland are different.
In the UK, digital coverage is patchy before switchover. At switchover, the coverage of the Public Service Broadcaster (PSB) channels increases to match that of the current four-channel analogue (which is about 98.5% of the population). After switchover, 90% of the population can receive the Commercial (COM) multiplexes as well. Limavady will be a full service transmitter, so you should hopefully be able to receive PSBs and COMs.
Before switchover, main transmitters and some larger relays carry Freeview at lower transmission powers than after switchover. Thus, the coverage foot-print isn't as big as the analogue channels from each of these transmitting stations.
In contrast, I understand that the situation in Ireland is that many of the digital (Saorview) transmitters are already broadcasting on full power and therefore it already covers a greater proportion of the population.
The reason for the difference is because in the UK there are more networks and hence every transmitting station requires more UHF channels (frequencies). The pre-switchover UK signals have been shoe-horned in. There are four full analogue networks and six digital ones, meaning that the pre-switchover transmitting stations require 10 UHF channels, yet there are only 48 available in total.
Consequently, whilst there are those who can/could receive Freeview before switchover, there are quite a few who receive it for the first time at switchover. Some may have intermittent reception until switchover.
Switchovers in the UK happen in two stages and these are two weeks apart. At Limavady, on 10th October BBC Two analogue will cease for good. The post-switchover BBC digital multiplex will start on its full final power. The other multiplexes will remain on their pre-switchover (low) power until 24th October and the analogue signals for BBC One, UTV and Channel 4 will continue until that date. Thus, you will need to carry out a retune on 10th and 24th October.
If you have two aerials (one on Moville and one on Limavady), the feeds for which are combined into one downlead, you "may" not be able to receive some multiplexes from Limavady after switchover. I emphasise that this "may" affect you only if the feeds are combined.
The reason for this is because after switchover Limavady will use the following six channels: 50, 59, 55, 54, 58, 49
Currently its four analogue channels are 55, 62, 59, 63 and its digital ones are 67, 58, 53, 60, 63, 57.
Moville's analogue channels are 40, 43, 50 and its digital is 45, with a future serve planned for 42.
If the aerial feeds are combined, the feed from each will be "split" at one channel. This means that one aerial "supplies" the channels below the channel at which the "split" occurs and the other feeds those above.
If the "split" is at C51, your Moville aerial therefore can receive C21 to C50 and the Limavady one C52 to C68. At the present time the channels used by each of those transmitters are within those ranges. However, after switchover Limavady's will go lower, it using 49 and 50 as well, the former carrying BBC standard definition services and the latter carrying Dave, Yesterday and others.
It appears that you are closer to Holywell Hill than Moville, so I wonder if there is something preventing you from receiving from there. If you could receive from Holywell Hill, then this uses lower channels and therefore combining an aerial on it with one on Limavady would be possible.
According to this document, the Highland Radio transmitter at Moville isn't intended to serve a wide area and is simply a filler-in:
http://www.frequencyfinde….pdf
It complements the highest power transmitter which is at Burnfoot.
Therefore it isn't surprising that you can't receive Highland Radio from Moville (which is on 104.7MHz). Its transmission power is 100W whereas your local transmitter which is in Burnfoot is at 5kW and its frequency is 103.3MHz.
link to this comment |
Wednesday, 26 September 2012
G
Gerry6:30 PM
Seen Web link on Highland Radio News Motion you put forward today in Dail-
Highland Radio – Latest Donegal News and Sport » Inishowen Saorview signal problems aired in the Dil
Same issue applies here in Speenogue At moment with Digital Signal Coming from Limavady Transmitter cannot get Signal at all.
I have been in contact with all Media Organisations UTV.BBC,RTE about this same issue as this is the broadcasters area and have a vested interested that we get a good picture after digital switchover from both sides of the border under the Good Friday Agreement.
Would you be able to find out who runs and operates TV mast at Limvady Co. Derry and weathers assurances can be got that residents who live in Border Areas I.E. Burt Co.Donegal who have always got a picture from this tranmitter in Limavady will still remain get picture from Limvady after Digital switchover.
We cannot get Sheffits Mountain Transmitter or Holywell Hill as Grianan Fort blocks us getting a TV signal and cannot get Moville Saorview Signal As Highland Radio Mast at Scalp mountain In Burnfoot in Donegal blocks us getting a TV Signal.We currenly get (Saorview)from Fanad in Donegal.
A solution has to be found here and not for it to be sweep under the carpet this has to be looked at now not next year by whoever is tasked to do it......Gerry Your help would be greatly appreciated.
link to this comment |
Select more comments
Your comment please