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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, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 601 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, 24 ITV4, 33 ITV +1 (Wales),

PSB3
BBCB
 H max
C40+ (626.2MHz)562mDTG-620,000W
Channel icons
74 Shopping Quarter , 101 BBC One HD Wales, 102 BBC Two HD (England), 104 Channel 4 HD South ads, 105 Channel 5 HD, 204 CBBC HD, plus 1 others

COM4
SDN
 H -3dB
C42- (641.8MHz)562mDTG-810,000W
Channel icons
12 Quest, 20 Drama, 21 5USA, 23 CCXTV, 27 ITV2 +1, 28 E4 (Wales), 30 5STAR, 31 Paramount Network, 44 Channel 5 +1, 54 5SELECT, 58 ITV3 +1, 59 ITV4 +1, 63 Blaze, 66 CBS Reality, 70 Horror Channel, 77 TCC, 80 Blaze +1, 97 ITVBe +1, 203 CITV, 211 Ketchup, plus 14 others

COM5
ArqA
 H -3dB
C45- (665.8MHz)562mDTG-810,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 28 E4 +1, 29 4Music, 34 pick, 38 Quest Red, 41 Food Network, 45 Film4 +1, 46 Challenge, 47 4seven, 56 Smithsonian Channel, 75 Yesterday +1, 76 Quest +1, 87 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H -3dB
C39+ (618.2MHz)562mDTG-810,000W
Channel icons
25 Yesterday, 32 Sony Movies, 37 DMAX, 39 CBS Justice, 42 HGTV, 67 CBS Drama, 79 Dave ja vu, 81 Talking Pictures TV, 91 PBS America, 234 RT, 235 Aljazeera English, plus 18 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 11 Freeview HD channels?

the effected 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: BBC Four HD, BBC News HD, CBeebies HD, Forces TV, FreeSports, Together TV +1, More4 +1, NOW 80s, PBS America +1, Quest Red +1, RT HD.

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 - 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, 1 September 2020
C
Chris.SE
sentiment_satisfiedGold

10:07 AM

All:

I'm guessing Preseli may be on essential engineering maybe due to the above reports as all TV muxes appeared to go off-air just before 1045. All back on air at time of posting. I note that virtually all its relays are on Planned Engineering with "Possible service interuptions".

link to this comment
Chris.SE's 1,770 posts GB
Friday, 4 September 2020
Transmitter engineering
sentiment_very_satisfiedOwner

7:28 AM

PRESELI transmitter - DAB: Reduced quality due to a fault from 13 Aug 23:42 until 13 Aug 23:52. . [BBC]

link to this comment
Transmitter engineering's 132,375 posts xx
Saturday, 5 September 2020
S
Stuart Jones
7:26 AM
Tenby

Hi
We are having problems with keeping a signal on our free view box. We are on a caravan site at New Hedges in Tenby SA70 8TR. We have reset numerous times but the picture constantly freezes and goes off regularly to no signal being received.
Our aerial is fitted in the window pointing the same way has all others on the site and I believe this to be the Preseli transmitter.
We have turned off all phones, CD player laptops etc but no improvement.

Could you help in diagnosing the problem.
Many thanks
Mr Jones

link to this comment
Stuart Jones's 1 post GB
Transmitter engineering
sentiment_very_satisfiedOwner

10:28 AM

PRESELI transmitter - DAB: Reduced quality due to a fault from 13 Aug 23:42 until 13 Aug 23:52. . [BBC] , DAB: Reduced quality due to a fault from 13 Aug 23:42 until 13 Aug 23:52. . [BBC]

link to this comment
Transmitter engineering's 132,375 posts xx
Sunday, 6 September 2020
C
Chris.SE
sentiment_satisfiedGold

2:18 AM

Stuart Jones:

The predicted transmitter for your location is indeed Preseli which should give you the most reliable signals. The COM multiplexes may be slightly less reliable than the PSBs. The aerial should have its rods horizontal and be pointing at a bearing of 8 degrees (that's east of due N).
You can also receive a number of other transmitters in that location with less releibale signals that may be more variable or poor.

I suggest the first thing to check is that you are tuned to the correct UHF channels for Preseli by going to your set's tuning section, they are C43, C46, C40, C42, C45, C39 in the order BBCA/PSB1, D3&4/PSB2, BBCB-HD/PSB3, SDN/COM4, ArqA/COM5, ArqB/COM6.
You may be able to check best in Manual tuning if you have that option, but you may have others such as Signal Test or similar. (Ignore PSB3 if your set hasn't got an HD/T2 tuner).

If you find you are not tuned to these UHF channels, unplug the aerial and carry out an automatic retune which should clear all previous tuning as nothing should be found. Plug the aerial back in an ideally carry out a manual tune for the correct UHF channels.

If you are tuned to the correct channels, then check your aerial connections and coax plug for any poor or broken connections. Is your aerial a Wideband or Group B suitable for Preseli and does it have a similar number of elements to others there that are receiving satisfactory signals?

link to this comment
Chris.SE's 1,770 posts GB
Tuesday, 15 September 2020
Transmitter engineering
sentiment_very_satisfiedOwner

1:28 PM

PRESELI transmitter - DAB: Off the air due to essential engineering from 15 Sep 13:23. . [BBC]

link to this comment
Transmitter engineering's 132,375 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

4:28 PM

PRESELI transmitter - DAB: Off the air due to essential engineering from 15 Sep 13:23 until 15 Sep 14:32. Off the air due to essential engineering from 15 Sep 13:23 until 15 Sep 14:48. . [BBC]

link to this comment
Transmitter engineering's 132,375 posts xx
Wednesday, 16 September 2020
Transmitter engineering
sentiment_very_satisfiedOwner

10:27 PM

PRESELI transmitter - DAB: Off the air due to essential engineering from 15 Sep 13:23 until 15 Sep 14:32. Off the air due to essential engineering from 15 Sep 13:23 until 15 Sep 14:48. . [BBC] , DAB: Off the air due to essential engineering from 15 Sep 13:23 until 15 Sep 14:32. Off the air due to essential engineering from 15 Sep 13:23 until 15 Sep 14:48. . [BBC]

link to this comment
Transmitter engineering's 132,375 posts xx
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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.

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