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.
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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 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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Monday, 15 September 2014
Transmitter engineering
4:33 PM
4:33 PM
PRESELI transmitter - DAB: BBC National DAB Radio Off Air from 14:09 today to 14:23 today. [BBC]
link to this comment |
Tuesday, 16 September 2014
Transmitter engineering
4:34 AM
4:34 AM
PRESELI transmitter - DAB: BBC National DAB Radio Off Air from 14:09 yesterday to 14:23 yesterday. [BBC]
link to this comment |
Wednesday, 17 September 2014
Transmitter engineering
4:34 AM
4:34 AM
PRESELI transmitter - DAB: BBC National DAB Radio Off Air from 14:09 on 15 Sep to 14:23 on 15 Sep. [BBC]
link to this comment |
Saturday, 20 September 2014
R
rob summons4:03 PM
Having problems since retuning on 3.9.14 as instructed. Freeview cutting out in the evening. Try to retune nothing found. Live in Rosemarket at sa731jh.
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Wednesday, 8 October 2014
Transmitter engineering
10:31 PM
10:31 PM
PRESELI transmitter - Freeview: BBC Digital TV Off Air from 18:33 today to 18:33 today. [BBC]
link to this comment |
Thursday, 9 October 2014
Transmitter engineering
4:32 AM
4:32 AM
PRESELI transmitter - Freeview: BBC Digital TV Off Air from 18:33 yesterday to 18:33 yesterday. DAB: BBC National DAB Radio Off Air from 23:04 yesterday to 23:13 yesterday. [BBC]
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Friday, 10 October 2014
Transmitter engineering
4:31 AM
4:31 AM
PRESELI transmitter - Freeview: BBC Digital TV Off Air from 18:33 on 08 Oct to 18:33 on 08 Oct. DAB: BBC National DAB Radio Off Air from 23:04 on 08 Oct to 23:13 on 08 Oct. [BBC]
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Monday, 8 December 2014
Transmitter engineering
10:31 AM
10:31 AM
PRESELI transmitter - MainPossible weak signal [DUK]
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Monday, 9 February 2015
Transmitter engineering
12:09 PM
12:09 PM
PRESELI transmitter - MainPossible service interruptions [DUK]
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Thursday, 12 March 2015
Transmitter engineering
4:30 AM
4:30 AM
PRESELI transmitter - MainPossible service interruptions [DUK]
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