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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
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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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C43+ (650.2MHz)562mDTG-320,000W
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, 250 BBC Red Button, plus 13 others

PSB2
D3+4
 H max
C46+ (674.2MHz)562mDTG-320,000W
Channel icons
5 Channel 5, 6 ITV 2, 10 ITV3, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 30 E4 +1, 35 ITV +1 (Wales),

PSB3
BBCB
 H max
C40+ (626.2MHz)562mDTG-620,000W
Channel icons
56 5SELECT, 101 BBC One HD Wales, 102 BBC Two HD (England), 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

COM4
SDN
 H -3dB
C42- (641.8MHz)562mDTG-810,000W
Channel icons
 E4 (Wales), 12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 14 others

COM5
ArqA
 H -3dB
C45- (665.8MHz)562mDTG-810,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H -3dB
C39+ (618.2MHz)562mDTG-810,000W
Channel icons
 FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 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?

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
VHFB E TB E TB E TW TK TK TK T
C8ITVwaves
C30_local_local_local_local
C37C5wavesC5waves
C39 +ArqB+ArqBArqB
C40BBC2wavesBBC2wavesBBC2waves +BBCB+BBCBBBCB
C42-SDN-SDN-SDNSDN
C43ITVwavesITVwavesITVwaves+BBCA+BBCA+BBCABBCA
C45-ArqA-ArqA-ArqAArqA
C46BBC1wavesBBC1wavesBBC1waves+D3+4+D3+4+D3+4D3+4
C49tv_off+ArqB
C50tv_offC4wavesC4wavesC4waves+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

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.

Comments
Tuesday, 10 April 2012
Transmitter engineering
sentiment_very_satisfiedOwner

1:30 PM

PRESELY transmitter - Freeview BBC Digital TV Weak Signal from 10:03 yesterday to 10:25 today HD Digital TV Weak Signal from 10:35 today to 10:51 today [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Wednesday, 11 April 2012
Transmitter engineering
sentiment_very_satisfiedOwner

4:30 AM

PRESELY transmitter - Freeview BBC Digital TV Weak Signal from 10:03 on 09 Apr to 10:25 yesterday HD Digital TV Weak Signal from 10:35 yesterday to 10:51 yesterday [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Thursday, 12 April 2012
Transmitter engineering
sentiment_very_satisfiedOwner

4:30 AM

PRESELY transmitter - Freeview BBC Digital TV Weak Signal from 10:03 on 09 Apr to 10:25 on 10 Apr HD Digital TV Weak Signal from 10:35 on 10 Apr to 10:51 on 10 Apr [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Friday, 27 April 2012
O
Owen Hesford
9:51 AM
Newcastle Emlyn

SA38 9JH
Why are Tx,s radiation paterns with held and not in the public domain??We at Newcastle Emlyn receive our terestial tv from the relay mast at Llandfriog which in turn receives the tv signal from the Perseli mast.It is proposed to site a wind farm at Llandfriog in line between the two masts. This I feel will cause untold tv signal problems for the community.CAN you please comment on this? Thankyou

link to this comment
Owen Hesford's 1 post GB
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

5:02 PM

Owen Hesford: The owner of this website, Brian Butterworth (Briantist), has asked the BBC several times for the radiation patterns. Their most recent response is at Update on transmitter radiation patterns (BBC FOI request) | ukfree.tv - independent free digital TV advice .

For the frequencies used by Llandyfriog, we have actually told the international community that we will be broadcasting on them from Blaenplwyf (near Aberystwyth) at 40 kW. We are using them at Blaenplwyf, but only at 10 kW, so we can reuse them at a number of other sites in west Wales: see UK TV Frequency map - channel C22 (482.0MHz) before switchover map | ukfree.tv - independent free digital TV advice for the map. If Ireland were to officially discover that we weren't really using them to the extent we negotiated for, it might cause problems when renegotiating.

As for your wind farm, Llandyfriog currently uses a single log-periodic antenna to receive the signal from Presely. I would expect that use of trough antennas or arrays of logs, and/or diversity reception, should overcome any reduction of signal level. If all else fails, the data can be delivered to the relay site via fibre-optic cable rather than off-air, although this imposes an additional cost to the broadcasters.

The National Planning Policy Framework says, in section 44, "Local planning authorities [...] should ensure that [...] they have considered the possibility of the construction of new buildings or other structures interfering with broadcast and telecommunications services." The local authority could insist that the wind farm operator pays for any work required to restore broadcasting, if it does cause enough of a problem.

link to this comment
Mike Dimmick's 2,486 posts GB
Tuesday, 8 May 2012
Transmitter engineering
sentiment_very_satisfiedOwner

12:27 PM

PRESELI transmitter - seli Transmitter works 9 May 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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Transmitter engineering's 138,029 posts xx
Wednesday, 9 May 2012
Transmitter engineering
sentiment_very_satisfiedOwner

10:28 AM

PRESELY transmitter - Freeview HD Digital TV Off Air from 00:31 today to 03:30 today [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Thursday, 10 May 2012
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 AM

PRESELY transmitter - Freeview HD Digital TV Off Air from 00:31 yesterday to 03:30 yesterday [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Friday, 11 May 2012
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 AM

PRESELY transmitter - Freeview HD Digital TV Off Air from 00:31 on 09 May to 03:30 on 09 May [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
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