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.
Are there any planned engineering works or unexpected transmitter faults on the Preseli (Pembrokeshire, Wales) mast?
Preseli transmitter - Preseli transmitter: Possible effect on TV reception week commencing 29/05/2023 Pixelation or flickering on some or all channels 
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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
H/V: aerial position (horizontal or vertical)
The Preseli (Pembrokeshire, Wales) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: .
If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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)
Are you trying to watch these 0 Freeview HD channels?
The Preseli (Pembrokeshire, Wales) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: .
If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? 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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Tuesday, 25 February 2020
Transmitter engineering
7:28 PM
7:28 PM
PRESELI transmitter - DAB: Off the air due to a fault from 18 Feb 13:32 until 18 Feb 17:20. . [BBC]
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Tuesday, 28 July 2020
Transmitter engineering
10:35 AM
10:35 AM
PRESELI transmitter - DAB: Off the air due to essential engineering from 28 Jul 10:49. . [BBC] , DAB: Off the air due to essential engineering from 28 Jul 10:49. . [BBC]
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Transmitter engineering
4:29 PM
4:29 PM
PRESELI transmitter - DAB: Off the air due to essential engineering from 28 Jul 10:49. . [BBC] , DAB: Off the air due to essential engineering from 28 Jul 10:49 until 28 Jul 13:57. . [BBC]
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Transmitter engineering
6:35 PM
6:35 PM
PRESELI transmitter - DAB: Off the air due to essential engineering from 28 Jul 10:49 until 28 Jul 13:57. . [BBC] , DAB: Off the air due to essential engineering from 28 Jul 10:49 until 28 Jul 13:57. . [BBC]
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Monday, 10 August 2020
A
Adam Jackson8:36 PM
PSB2 is now on Ch34 not 46 as stated here.
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C
Chris.SE11:21 PM
Adam Jackson:
I'm afraid you are wrong old chap. It is still on 46.
You are most likely picking up PSB2 from the Fishguard relay which is not too surprising considering your location. If your aerial is still pointing at Trefin you should be getting it on C22. If you've recently retuned, changes in reception might be due to strong Tropospheric Ducting which has intermittently been affecting different parts of the UK in recent days.
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Saturday, 22 August 2020
Transmitter engineering
1:09 PM
1:09 PM
PRESELI transmitter - DAB: Off the air due to a fault from 21 Aug 00:29 until 21 Aug 00:34. . [BBC] , DAB: Off the air due to a fault from 21 Aug 00:29 until 21 Aug 00:34. . [BBC]
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Thursday, 27 August 2020
Transmitter engineering
7:28 PM
7:28 PM
PRESELI transmitter - DAB: Off the air due to a fault from 21 Aug 00:29 until 21 Aug 00:34. . [BBC] , DAB: Off the air due to a fault from 27 Aug 17:01 until 27 Aug 17:08. Off the air due to a fault from 21 Aug 00:29 until 21 Aug 00:34. . [BBC]
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Friday, 28 August 2020
Transmitter engineering
4:34 AM
4:34 AM
PRESELI transmitter - DAB: Off the air due to a fault from 21 Aug 00:29 until 21 Aug 00:34. . [BBC] , DAB: Off the air due to a fault from 27 Aug 17:01 until 27 Aug 17:08. . [BBC]
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Transmitter engineering
1:29 PM
1:29 PM
PRESELI transmitter - DAB: Off the air due to a fault from 27 Aug 17:01 until 27 Aug 17:08. . [BBC] , DAB: Off the air due to a fault from 27 Aug 17:01 until 27 Aug 17:08. . [BBC]
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