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Freeview Light on the Mynydd Machen (Caerphilly, Wales) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.604,-3.123 or 51°36'13"N 3°7'24"Wsa_postcodeNP11 7PS

 

The symbol shows the location of the Mynydd Machen (Caerphilly, Wales) transmitter which serves 31,000 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 Mynydd Machen (Caerphilly, 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 Mynydd Machen 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
 V max
C23+ (490.2MHz)411mDTG-3400W
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
 V max
C26+ (514.2MHz)411mDTG-3400W
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 ITV1 +1 (Wales),

PSB3
BBCB
 V max
C29+ (538.2MHz)411mDTG-6400W
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

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
H/V: aerial position (horizontal or vertical)

Are you trying to watch these 43 Freeview channels?

the effected channels
the effected channels
the effected channels
the effected channels

The Mynydd Machen (Caerphilly, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Aljazeera English, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, CITV, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, Film4 +1, Food Network, GB News, GREAT! movies, GREAT! movies action, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, POP MAX, Quest +1, Quest Red, Really, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, That's TV (UK), Together TV, W, Yesterday +1.

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 Mynydd Machen transmitter?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 14km south-southwest (213°)
to BBC Wales region - 206 masts.
regional news image
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 19km southwest (215°)
to ITV Wales region - 206 masts.

How will the Mynydd Machen (Caerphilly, Wales) transmission frequencies change over time?

1984-971997-981998-20102010-1315 May 2019
A K TA K TA K TA K TA K T
C23ITVwavesITVwavesITVwaves+BBCABBCA
C26BBC2wavesBBC2wavesBBC2waves+D3+4D3+4
C29C4wavesC4wavesC4waves+BBCBBBCB
C33BBC1wavesBBC1wavesBBC1waves

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 3 Mar 10 and 31 Mar 10.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 2kW
BBCA, D3+4, BBCB(-7dB) 400W

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

Jan 1958-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. Mynydd Machen was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Comments
Sunday, 23 September 2012
B
bev hurley
7:58 PM

Do you know when Mynydd Machen will be transmitting more freeview channels?
At the moment I have just the basic BBC/ITV/channel 4 & 5 channels
Thanks

link to this comment
bev hurley's 1 post GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

8:10 PM

bev hurley: Never.

The Commercial broadcasters (those that don't transmit from Mynydd Machen) achieve coverage of 90% of the population from 81 of the largest transmitters (largest by viewer population). For them to transmit from the other 1,000 plus relays including Mynydd Machen would roughly double their transmission costs whilst only adding a potential 8.5% of the population to their viewer bases. As they operate purely for profit, they wish to acquire as many viewers as possible for least cost which is what they do.

Unless you are in a spot where you can receive the Commercial channels from a full-service transmitter, then you ain't gonna get them. In some parts of South Wales Mendip can be received. If this is possible at your location you may therefore be able to receive the Commercial channels, either by using a separate aerial and separate set-top box or by combining an aerial on Mendip with one on Mynydd Machen. What can be received and can't be received in your area varies over small distances because of the terrain.

link to this comment
Dave Lindsay's 5,724 posts GB
Tuesday, 23 October 2012
C
Clive Porter
8:30 AM

What has happened to the Mynydd Machen Channel 23 / BBCA Multiplex this morning? All programs on this multiplex are "dead".
Have the engineers forgotten to turn it back on after their overnight engineering work?

link to this comment
Clive Porter's 6 posts GB
D
David Badbach
8:54 AM

Clive: Yep, I'm in the RISCA area, but luckily I also have FreeSAT, so that's giving me a service. Wake up engineers - please!

link to this comment
David Badbach's 2 posts GB
C
Clive Porter
12:58 PM

Mynydd Machen Channel 29 ?
Can anyone tell me what has become of the BBCB Multiplex (BBC One HD, BBC HD ITV1 HD etc.) on Mynydd Machen Channel 29?
I used to receive the channel 29 multiplex until around the time of the "re-tune" on 17 October. I've not been able to receive it since that date, maybe earlier as I don't watch HD very often.
I receive channels 23 and 26 from Mynydd Machen perfectly (100% signal 100% quality) but my (full HD) TV shows no signal at all on channel 29.


link to this comment
Clive Porter's 6 posts GB
Tuesday, 9 April 2013
B
barrie wreford
3:21 PM

the problem with the mynydd machen transmitter is the design of the transmitting aerial,if you live close and low down the signal is poor,the further away you are the signal improves.i live about two and a half miles away line of sight in risca on a hill when we have the slightest high pressure i get picture breakup or no signal due to interference from stockland hill.that is with the correct group aerial mounted vertical and pointing at the mast.

link to this comment
barrie wreford's 11 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

3:29 PM

barrie wreford: Can you not use the Risca relay, or even Wenvoe which would probably give you the full service?

link to this comment
Dave Lindsay's 5,724 posts GB
Friday, 12 April 2013
B
barrie wreford
5:16 PM

hi dave,signals from risca tranmitter here are non exsistant as a hill in the way and kings weston hill is too strong eg set top aerial upstairs gives good pics.after switchover i was on wenvoe but a coppice of very large trees have grown taller and made viewing very bad especially in windy weather despite antiference group b xg9 on 12ft pole.i pick up coms bbc and and itv west by an aerial pointing at mendip and diplexed [triax a-e unit.many thanks barrie

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barrie wreford's 11 posts GB
Tuesday, 13 August 2013
K Wright
12:06 PM
Caerphilly

CF83 2SS

Usually excellent freeview signal from set top aerial but nothing this morning even after resetting box. Tried re-installation and it only picked up 9 channels, (no BBC channels at all), presumably from a different transmitter as the signal is very poor.

Is there a fault with this transmitter today please?

link to this comment
K Wright's 1 post GB
Wednesday, 14 August 2013
Dave Lindsay
sentiment_very_satisfiedPlatinum

1:10 PM

K Wright: The posting above says that Mynydd Machen was off air yesterday for a couple of hours.

BBC services should be tuned to UHF channel 23, this information is usually given on the signal strength screen.

C49 is Mynydd Bach, C60 is Abertridwr and C41 is Wenvoe.

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Dave Lindsay's 5,724 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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