Full Freeview on the Preseli (Pembrokeshire, Wales) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 51.944,-4.661 or 51°56'38"N 4°39'40"W |  | SA41 3QR |
The symbol shows the location of the Preseli (Pembrokeshire, Wales) transmitter which serves 57,000 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 Preseli (Pembrokeshire, Wales) 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
H/V: aerial position (horizontal or vertical)
The Preseli (Pembrokeshire, Wales) 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 Preseli 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 Preseli (Pembrokeshire, Wales) 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 Preseli transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 111km east-southeast (118°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 110km east-southeast (120°)
to ITV Wales region - 206 masts.
Are there any self-help relays?
| Abergynolwyn | Active deflector | Gwynedd | 84 homes |
| Caerberllan | Active deflector | ||
| Cwmtydu A/d | Active deflector | 17 km NNE Newcastle Emlyn | 10 homes 50 caravans |
| Drefelin | Active deflector | 20 km NNW Carmarthen | 36 homes |
| Poppit Sands | Active deflector | 39 km NE Carmarthen Caravan Park | |
| Rhyd-yr-onnen | Active deflector | 20 km N Aberystwyth | 20 homes caravan site |
How will the Preseli (Pembrokeshire, Wales) transmission frequencies change over time?
| 1962-80s | 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 2013-18 | 2013-17 | 31 Oct 2018 | ||
| VHF | B E T | B E T | B E T | W T | K T | K T | K T | ||
| C8 | ITVwaves | ||||||||
| C30 | _local | _local | _local | _local | |||||
| C37 | C5waves | C5waves | |||||||
| C39 | +ArqB | +ArqB | ArqB | ||||||
| C40 | BBC2waves | BBC2waves | BBC2waves | +BBCB | +BBCB | BBCB | |||
| C42 | -SDN | -SDN | -SDN | SDN | |||||
| C43 | ITVwaves | ITVwaves | ITVwaves | +BBCA | +BBCA | +BBCA | BBCA | ||
| C45 | -ArqA | -ArqA | -ArqA | ArqA | |||||
| C46 | BBC1waves | BBC1waves | BBC1waves | +D3+4 | +D3+4 | +D3+4 | D3+4 | ||
| C49tv_off | +ArqB | ||||||||
| C50tv_off | C4waves | C4waves | C4waves | +BBCB |
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 19 Aug 09 and 16 Sep 09.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-5 | 100kW | |
| BBCA, D3+4, BBCB | (-7dB) 20kW | |
| SDN, ARQA, ARQB | (-10dB) 10kW | |
| Mux A*, Mux B* | (-17dB) 2kW | |
| Mux 1*, Mux 2*, Mux C*, Mux D* | (-20dB) 1000W |
Which companies have run the Channel 3 services in the Preseli transmitter area
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Wednesday, 13 December 2023
S
Steve Donaldson2:36 PM
Alexander Scott: Information about and contact details for Restore TV is here: https://restoretv.uk
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C
Chris.SE11:41 PM
Alexander Scott:
To add to what Steve has already said, we've made the presumption that your aerial is pointing at Preseli because you've posted on the Preseli page. If so, your aerial should be pointing at compass bearing 292 degrees, that's virtually WNW.
If it's pointing at Carmel, it should be compass bearing 108 degrees, that's almost ESE.
In both cases the aerial rods (or squashed Xs) should be horizontal.
It's not at all obvious why your aerial should point at Preseli as there are multiple (quite severe) line-of-sight obstructions due to the terrain between you and Preseli, whereas there is only one much smaller one between you and Carmel, which is also closer.
3 different reception predictors also suggest Carmel would give better reception, also the ArqA/COM5 multiplex is not predicted to be as reliable as the others from Preseli.
HOWEVER, predictions are not always 100% and there could be some very local conditions where a local installer has found Preseli to be better. If that's the case, do you know why?
Just to compound matters, both transmitters have been listed for Planned Engineering for several weeks recently, although the work at Preseli should have been finished as it's no longer listed - but we also know those lists are sometimes not 100%. Carmel is still listed.
How old is your aerial installation? Do check it's still pointing correctly , that the downlead isn't flapping about in the wind and that all accessible coax connections are free of corrosion and water.
Steve has mentioned the possibility of interference from a new/upgraded phone mast and if you haven't got a Free Filter for 700MHz (more commonly referred to as 5G) then you should get in touch with Restore TV.
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Thursday, 14 December 2023
C
Chris.SE10:50 PM
Alexander Scott;
The list of transmitters on Planned Engineering has been updated during the week and Carmel is no longer listed, so it's presumed that Preseli and Carmel are operating normally.
Have your signals improved?
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Sunday, 9 June 2024
M
Mr. A. Phillips3:44 PM
No TV for the last three days on and off all the time
Called someone out to check Ariel who said the
Pressilli transmitter is having work done why didn't
You let people know with a tv message saying work
Was being carried out, you did last time I could have
Had somebody in telling me I needed a new Ariel
Which would have been over 100. This is just not
Good enough.
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S
Steve Donaldson4:16 PM
Mr. A. Phillips: This website is not affiliated with any of the broadcasting companies. It is entirely independent.
Freeview lists transmitter engineering works on this page which you might like to bookmark for future reference:
Planned engineering works | Freeview
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Monday, 25 November 2024
G
G H Martyn7:36 PM
Haverfordwest
Poor signal on COM5 Multiplex from Preseli transmitter. Channels 11, 17, 19, etc. Signal strength 99-100% but signal quality zero-5% Other multiplexes have no problems.
My postcode SA62 6QH
Large aerial in roof space has been satisfactory for years, and other multiplexes are fine.
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G's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
C
Chris.SE8:24 PM
G H Martyn:
Apart from the fact that the transmitter is having Planned Engineering (see post just before yours) which will probably exacerbate the problem, you aren't predicted to get the most reliable reception of the COM multiplexes in your locale.
However, you are also surrounded by a number of mobile phone masts (within 1km of you) and some of these may recently have upgraded (or maybe even a new mast) to use the 700MHz band.
This can cause interference to DTV signals. You should have received a postcard from Restore TV.
See https://restoretv.uk/post…ure/
I would contact Restore TV for a Free Filter.
If you have any aerial pre-amp and/or splitter to feed more than one TV, the Filter must be fitted BEFORE the amp.
Do let us know how you get on.
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