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Full Freeview on the Preseli (Pembrokeshire, Wales) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.944,-4.661 or 51°56'38"N 4°39'40"Wsa_postcodeSA41 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.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name

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.

 H max
C43+ (650.2MHz)562mDTG-20,000W
Channel icons
1 BBC One (SD) Wales, 2 BBC Two Wales, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 14 others

 H max
C46+ (674.2MHz)562mDTG-20,000W
Channel icons
5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Wales),

 H max
C40+ (626.2MHz)562mDTG-20,000W
Channel icons
46 5SELECT, 101 BBC One HD Wales, 102 BBC Two HD Wales, 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 110 Channel 4 HD (Wales), 204 CBBC HD, 205 CBeebies HD, plus 1 others

 H -3dB
C42- (641.8MHz)562mDTG-810,000W
Channel icons
 E4 (Wales), 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H -3dB
C45- (665.8MHz)562mDTG-810,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H -3dB
C39+ (618.2MHz)562mDTG-810,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

DTG-8 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?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 111km east-southeast (118°)
to BBC Wales region - 206 masts.
regional news image
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?

AbergynolwynActive deflectorGwynedd84 homes
CaerberllanActive deflector
Cwmtydu A/dActive deflector17 km NNE Newcastle Emlyn10 homes 50 caravans
DrefelinActive deflector20 km NNW Carmarthen36 homes
Poppit SandsActive deflector39 km NE Carmarthen Caravan Park
Rhyd-yr-onnenActive deflector20 km N Aberystwyth20 homes caravan site

How will the Preseli (Pembrokeshire, Wales) transmission frequencies change over time?

1962-80s1984-971997-981998-20092009-132013-182013-1731 Oct 2018
C39 +ArqB+ArqBArqB
C40BBC2wavesBBC2wavesBBC2waves +BBCB+BBCBBBCB

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

Sep 1962-Jul 1964Wales (West and North) Television (Teledu Cymru)
Jul 1964-Jul 1968Television Wales and the West
Jul 1968-Feb 2004Harlech Television
Feb 2004-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only.

Sunday, 8 January 2012
Dave Lindsay

11:44 AM

Mike Angle: Google something like Channel 4 HD Wales.

I would imagine that the answer is likely to be no because if they did put C4HD (I would expect C4 will have to pay for it!) on in Wales, then the spare HD slot that is available will then not be UK-wide; i.e. it will exclude Wales.

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Dave Lindsay's 5,724 posts GB flag
6:29 PM

Dave Lindsay.

Thanks for that. I now see that Ch4 HD is not available anywhere in Wales. The Freesat area checker is still claiming it is however.

I noticed a homophone in my post too late.

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Mike's 2 posts GB flag
Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 10 January 2012

7:32 AM

Mike: Channel 4 HD can be watched in all parts of the UK on Freesat.

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Briantist's 38,910 posts GB flag
Tuesday, 17 January 2012

7:59 AM

Mike Angle: Channel 4 HD is not provided in Wales on Freeview HD, only on Freesat HD.

link to this comment
Briantist's 38,910 posts GB flag
Monday, 13 February 2012
Transmitter engineering

10:30 AM

PRESELI transmitter - 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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Transmitter engineering's 148,786 posts xx flag
Wednesday, 14 March 2012
Mr. J. White
11:39 AM

I am disappointed to find there is no English channe4HD in Wales. I switched to digital long before the switch over in my area so that I could get English channel 4 which I have enjoyed for many years,I cannot understand why this segragation is back in place. I moved to Wales but do not speak welsh, many Welsh people dontspeak welsh either, so I fail to see why we cannot receive the English channel4HD. Are there any plans to change this, or can I contact someone to voice my opinion. Thank You

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Mr. J. White's 1 post GB flag
Mr.'s: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage

11:52 AM

Mr. J. White: S4C has the right to a HD slot in Wales, as the law provides for this and Ofcom have to implement the law.

If you want to watch Channel 4 HD you will need to use Freesat.

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Briantist's 38,910 posts GB flag
Mike Dimmick

2:41 PM

Mr J. White, Briantist: No, the BBC B capacity-reservation scheme is national, not regional. While "The Television Multiplex Services (Reservation of Digital Capacity) Order 2008" allows Ofcom to specify different areas of the British Islands in each application process, in practice they have so far only advertised for services covering the whole of the British Islands.

References: The Television Multiplex Services (Reservation of Digital Capacity) Order 2008 section 3(3)(b)(ii) and http://stakeholders.ofcom….pdf section 2.30.

In response to the first invitation to apply, Channel 4 made a joint application with S4C in which they agreed that S4C would serve Wales, and Channel 4 would serve the rest of the UK: http://stakeholders.ofcom….pdf . This is the legal basis on which Channel 4 HD and S4C Clirlun are running. S4C Clirlun does not, individually, have a Digital Television Programme Service licence - it is part of the Channel 4 HD DTPS licence. (DTPS and Digital Television Additional Services, DTAS, licences are listed at Ofcom | Digital TV Channels .)

Channel 4 were actually under no obligation to make this offer to S4C, they could have applied for a nationwide service. (Equally, so could S4C have applied for a nationwide service.) That is in contrast to ITV plc, who were effectively required to collaborate with STV plc, UTV Media plc and Channel Television, because the Order requires that any application from "Channel 3" companies represents at least 13 regional licensees. ITV plc owned (at the time) 11 regional licences and one national licence, STV plc owns two, UTV Media plc owns one, and Channel Television owned one. Since then, ITV plc have bought Channel Television, but that still leaves them one short.

In that first application, there were two slots available, and potentially four applicants: the ITV companies, Channel 4, S4C and Channel 5. C4 may have decided to invite S4C to join to improve the strength of their own application. The other companies were entitled to not just apply for an HD version of their traditional analogue service, but also for any new service, whether or not an HD version of any existing service, so had they been able to agree on it, the ITV companies could have submitted a second application to run ITV2 HD, for example.

Of course Channel 4 may have been 'encouraged' to offer the capacity to S4C, it may not have been entirely their choice!

I believe that if Channel 4 proposed to later drop S4C Clirlun, that would fall under section 19(3C) of the Broadcasting Act 1996 (inserted by section 7(3) of the Order). I think it's likely that Ofcom would decide that the variety of services was 'unduly diminished' - though I could be wrong, Ofcom have permitted Capital Radio and Heart to turn their accreted collections of independent local radio licences into national networks.

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Mike Dimmick's 2,486 posts GB flag
Tuesday, 10 April 2012
Transmitter engineering

10:29 AM

PRESELI transmitter - Over the next week Preseli main transmitter: TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 148,786 posts xx flag
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