Full Freeview on the Preseli (Pembrokeshire, Wales) transmitter

Brian Butterworth first published this on 1st May 2004 at 08:20 - UK Free TV

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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 02/10/2023 Pixelation or flickering on some or all channels

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.

Mux	H/V	Frequency	Height	Mode	Watts
PSB1 BBCA	H max	C43+ (650.2MHz)	562m	DTG-	20,000W
	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
PSB2 D3+4	H max	C46+ (674.2MHz)	562m	DTG-	20,000W
	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),
PSB3 BBCB	H max	C40+ (626.2MHz)	562m	DTG-	20,000W
	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 66 TBN UK,
COM4 SDN	H -3dB	C42- (641.8MHz)	562m	DTG-8	10,000W
	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 CBS Reality, 68 RealityXtra, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 34 others
COM5 ArqA	H -3dB	C45- (665.8MHz)	562m	DTG-8	10,000W
	Smithsonian Channel, 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, 60 Drama +1, 65 That's 60s, 70 Quest +1, 74 Yesterday +1, 75 That's 80s, 233 Sky News, plus 11 others
COM6 ArqB	H -3dB	C39+ (618.2MHz)	562m	DTG-8	10,000W
	Quest Red +1, Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 Great! Movies Christmas, 56 That's TV (UK), 61 GREAT! movies +1, 63 Great! Movies Christmas 1, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 235 Al Jazeera Eng, plus 20 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?

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	ITV_waves
C30					_local	_local	_local	_local
C37			C5_waves	C5_waves
C39						+ArqB	+ArqB	ArqB
C40		BBC2_waves	BBC2_waves	BBC2_waves		+BBCB	+BBCB	BBCB
C42					-SDN	-SDN	-SDN	SDN
C43		ITV_waves	ITV_waves	ITV_waves	+BBCA	+BBCA	+BBCA	BBCA
C45					-ArqA	-ArqA	-ArqA	ArqA
C46		BBC1_waves	BBC1_waves	BBC1_waves	+D3+4	+D3+4	+D3+4	D3+4
C49_{tv_off}					+ArqB
C50_{tv_off}		C4_waves	C4_waves	C4_waves	+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

Local transmitter maps

Presely Freeview Presely DAB Presely AM/FM Preseli TV region BBC Wales Wales

Which companies have run the Channel 3 services in the Preseli transmitter area

Sep 1962-Jul 1964	Wales (West and North) Television (Teledu Cymru)
Jul 1964-Jul 1968	Television Wales and the West
Jul 1968-Feb 2004	Harlech Television
Feb 2004-Dec 2014	ITV plc

Feb 1983-Dec 1992	TV-am•
Jan 1993-Sep 2010	GMTV•
Sep 2010-Dec 2014	ITV Daybreak•

• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only.

Is the transmitter output the same in all directions?

Transmitter engineering

_{sentiment_very_satisfied}Owner

7:28 PM

- : Off the air due to a fault from 18 Feb 13:32 until 18 Feb 17:20. . [BBC]

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Transmitter engineering's 144,308 posts xx flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

10:35 AM

- : Off the air due to essential 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

_{sentiment_very_satisfied}Owner

4:29 PM

- : Off the air due to essential 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

_{sentiment_very_satisfied}Owner

6:35 PM

- : Off the air due to essential 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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Transmitter engineering's 144,308 posts xx flag

A

Adam Jackson
8:36 PM

PSB2 is now on Ch34 not 46 as stated here.

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Adam Jackson's 7 posts GB flag

C

Chris.SE

_{sentiment_very_satisfied}Platinum

11:21 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 which is not too surprising considering your location. If your is still pointing at you should be getting it on . If you've recently retuned, changes in might be due to strong Tropospheric Ducting which has intermittently been affecting different parts of the UK in recent days.

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Chris.SE's 3,727 posts GB flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

1:09 PM

- : 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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Transmitter engineering's 144,308 posts xx flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

7:28 PM

- : 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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Transmitter engineering's 144,308 posts xx flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

4:34 AM

- : 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]

link to this comment

Transmitter engineering's 144,308 posts xx flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

1:29 PM

- : 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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Transmitter engineering's 144,308 posts xx flag

Page 19

Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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