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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.

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
Thursday, 12 March 2015
M
M Davies
2:24 PM

Transmitter engineering: Is com 5 off air today 12/03/15 Preseli?

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M Davies's 1 post GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

3:48 PM

M Davies: See:


Digital UK - Planned Engineering Works


Preseli: "Possible service interruptions"

link to this comment
Dave Lindsay's 5,724 posts GB
Friday, 17 April 2015
Transmitter engineering
sentiment_very_satisfiedOwner

1:31 PM

PRESELI transmitter - Freeview: BBC Digital TV Weak Signal from 11:58 today to 12:12 today. [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Saturday, 18 April 2015
Transmitter engineering
sentiment_very_satisfiedOwner

4:31 AM

PRESELI transmitter - Freeview: BBC Digital TV Weak Signal from 11:58 yesterday to 12:12 yesterday. [BBC]

link to this comment
Transmitter engineering's 138,029 posts xx
Sunday, 19 April 2015
Transmitter engineering
sentiment_very_satisfiedOwner

4:30 AM

PRESELI transmitter - Freeview: BBC Digital TV Weak Signal from 11:58 on 17 Apr to 12:12 on 17 Apr. [BBC]

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Transmitter engineering's 138,029 posts xx
Sunday, 10 May 2015
D
D,Sopher
9:17 PM
Llanybydder

My post code is SA40 9RE, Llanybydder, Carmarthenshire, the house being about 800 ft above sea level. Reception for some channels, ITV 1,2,3,4, and freeview 19, 20,37 is poor or interrupted (loss of sound, breaking up picture, message saying no signal) IN WINDY WEATHER ONLY. BBC channels on the other hand seem unaffected. Could this be down to the my aerial (indoor, on window sill), or the presence of the BT telephone cable (extending from this side of the house to the telegraph pole to the west)which swings in heavy winds. Or is it because these channels come from different transmitters? Would getting an outdoor aerial fitted to house wall in a much higher position than the indoor aerial downstairs? I don't have an HD TV. I would be grateful for some suggestions to help remedy this problem which seems to be due to weather conditions. With thanks, DS.

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D,Sopher's 1 post GB
M
MikeB
sentiment_very_satisfiedPlatinum

10:59 PM

D,Sopher: What transmitter are you using?

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MikeB's 2,579 posts GB
Monday, 11 May 2015
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:40 PM

D,Sopher: The short answer is yes, a roof-top aerial will likely improve reception quality, although it's possible that you may never achieve stable reception all the time, particularly of the Commercial (COM) channels.

There are some points you should be aware of - the long answer, if you will:

The terrestrial transmitter network post-switchover is a two-tier one with low power "filler in" transmitters only carrying Public Service (PSB) channels. An explanation of the reasons for this is here:

Londonderry (Northern Ireland) Freeview Light transmitter

In a situation such as yours where the inferior-coverage COM4-6 channels are inferior in terms of availability/reception (as against the PSBs) you may need to go further, such as use a roof-top aerial, or you may never achieve stable reception at all times on those channels.

Digital UK has published a list of all Freeview services here:


Digital UK Industry - Channel listings


COM7 and COM8 are the new quasi-national multiplexes carrying extra HD services, but these will not be available to you, even if you had a HD receiver.

Each multiplex or "mux" is a single signal. Thus, focus on one service from each multiplex.

UHF channel numbers (broadcast channels) are as follows for each transmitter:

PSB1 - BBC One | MP=C49 | P=C43
PSB2 - ITV | MP=C58 | P=C46
PSB3 - BBC One HD | MP=C54 | P=C40
COM4 - ITV3 | P=C42
COM5 - Pick | P=C45
COM6 - 4Music | P=C39

Transmitter abbreviations: MP=Mynydd Pencarreg; P=Preseli

The signal strength screen should tell you which UHF channel ("C") you are tuned to. As I say, look at one service per mux, the first of each being given above.

If you have poor reception of PSB2 (ITV, Channel 4, Channel 5 etc) then maybe it's tuned to Preseli and the good reception of PSB1 is because it's on Mynydd Pencarreg. Using the latter for PSB2 may achieve better reception and you may achieve this by either manual tuning or unplugging the aerial for the earlier part of the scan. If the automatic tuning scan only gives percentage then have it unplugged until, say 55%.

The following are terrain plots for each transmitter to your location:

Preseli:


Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location


Mynydd Pencarreg:


Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location


As you can see, you don't have line-of-sight with either, and so are having to rely on the effect of signal the bending around obstructions (signals travel in straight lines). So you may be lucky to get anything approaching a stable signal from an indoor aerial!

If you have some channels tuned to one transmitter and some to the other then they are each in almost opposite directions, so depending on the way your window faces you might be facing away from at least one of the transmitters! And for Preseli your aerial should be set horizontally and for Mynydd Pencarreg it should be vertical, for best possible reception.

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Dave Lindsay's 5,724 posts GB
Wednesday, 22 July 2015
A
Alan York
7:30 PM
Haverfordwest

At the moment ,unliKe in the past , I can only find listed channels via the channel guide on my remote for BBC TV and radio . Please tell me how to get all the other free view channels , which I had no trouble getting until recently . My post code is sa62 6rf , I live in St David's .

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Alan York's 1 post GB
Thursday, 23 July 2015
J
jb38
sentiment_very_satisfiedPlatinum

12:52 AM

Alan York : If by "other channels" you are meaning those such as ITV / Ch4 or Ch5? then carry out a reset on whatever you are using followed by a normal retune, if though on the other hand you are referring to such as ITV3 / Pick TV etc?, then you are (or were) possibly receiving them from the Preseli main station transmitter @ 26 miles / 83 degrees / aerial horizontally mounted, albeit that the DUK reception predictor indicates that reception in the post code area supplied is not possible from anywhere other than from the St Davids relay, (a few hundred yards away on a bearing of 351 degrees) this possibly being down to the line-of-sight signal from Preseli suffering from an obstruction at just under 1 mile away from your particular location.

The only reason for mentioning the latter (Preseli), being that a Google earth check revealed a small number of aerials in your area pointing in the direction of Preseli.

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jb38's 7,179 posts GB
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Your comment please
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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