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 18/09/2023 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 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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Tuesday, 29 May 2012
PRESELY transmitter - Freeview HD Digital TV Very Weak Signal from 17:16 today to 17:31 today [BBC]
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Wednesday, 30 May 2012
PRESELY transmitter - Freeview HD Digital TV Very Weak Signal from 17:16 yesterday to 17:31 yesterday [BBC]
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Thursday, 31 May 2012
PRESELY transmitter - Freeview HD Digital TV Very Weak Signal from 17:16 on 29 May to 17:31 on 29 May [BBC]
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Wednesday, 13 June 2012
PRESELI transmitter - seli Transmitter works 14 and 15 June 2012: Engineering transmitter work will take place between 00:01hrs and 06:00hrs. TV services that will be disrupted: Analogue services - n/a Digital services - PSB1, PSB2, PSB3, COM4, COM5 and COM6 will be subject to periods of shutdown. [DUK] Over the next week Preseli main transmitter: TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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Friday, 15 June 2012
PRESELY transmitter - Freeview HD Digital TV Weak Signal from 13:50 on 13 Jun to 14:04 on 13 Jun [BBC]
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Sunday, 17 June 2012
R
Robert Elliott11:30 PM
For the past 4 days my DAB radio has been very erratic on FM and displaying NO SIGNAL on DAB, is this due to works on the Preselli transmitter or do I have to get my radio fixed?Thank you.
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Monday, 18 June 2012
PRESELI transmitter - Over the next week Preseli main transmitter: TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK] Over the next week Preseli main transmitter: TV (digital) Liable to interruption, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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Tuesday, 17 July 2012
T
Tom11:35 PM
Hi
I live on the east coast of Ireland In the last few weeks I have lost all signal on channel 42 only all other muxes working fine. I have checked for single channel interference and found nothing wrong. It is also not caused by the weather. Any ideas?
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Tuesday, 7 August 2012
K
ken owen11:43 PM
Goodwick
Would an indoor ariel work in the attic to allow viewing of freeview hd in 5 precelly crescent, goodwick, sa64 0ba
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ken's: ...
Wednesday, 8 August 2012
ken owen: If the question is in relation to an aerial already fitted in the loft one which is known to work for standard definition channels then it will be expected to receive HD channels as well. Difficulties picking up HD don't usually arise where standard definition Public Service channels (BBC, ITV1, S4C, C4 etc) can be received.
The post code for Precelly Crescent is different to that which you supplied, it being SA64 0HE. The only way to determine whether something can be received is to try it. Prior to doing this only an assessment of what the likelihood of success might be by assessing potential difficulties such as obstructions.
Lofts aren't necessarily ideal, although in some places aerials in lofts can work. I'm not entirely sure you can be that an aerial in the loft might work. I would suggest that it won't work if you have to point the aerial through the loft-space of a neighbour. The direction to the transmitter appears to along the line of the properties. That said, the road is on a slope, so it might be possible to see over neighbouring properties.
This appears to be in a good signal area. What makes me think this is the prediction from Digital UK and the fact that there is a 10-element (regular size) aerial under the eaves on one of the houses (as shown on Streetview).
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Dave's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
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