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Full Freeview on the Wenvoe (Cardiff, Wales) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.460,-3.282 or 51°27'35"N 3°16'57"Wsa_postcodeCF5 6SA

 

The symbol shows the location of the Wenvoe (Cardiff, Wales) transmitter which serves 360,000 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 Wenvoe (Cardiff, 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 Wenvoe 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
C41+ (634.2MHz)384mDTG-3100,000W
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
C44 (658.0MHz)384mDTG-3100,000W
Channel icons
5 Channel 5, 6 ITV 2, 10 ITV3, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 25 ITV4, 30 E4 +1, 35 ITV +1 (Wales),

PSB3
BBCB
 H max
C47 (682.0MHz)384mDTG-6100,000W
Channel icons
73 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+ (642.2MHz)384mDTG-850,000W
Channel icons
 E4 (Wales),  CCXTV, 12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 45 Channel 5 +1, 56 5SELECT, 58 ITVBe +1, 59 ITV3 +1, 60 ITV4 +1, 64 Blaze, 67 CBS Reality, 68 Horror Channel, 74 Drama +1, 78 TCC, 81 Blaze +1, 203 CITV, 211 Ketchup TV, 212 YAAAS!, plus 15 others

COM5
ArqA
 H -3dB
C45+ (666.2MHz)384mDTG-850,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 4Music, 36 pick, 40 Quest Red, 43 Food Network, 46 Film4 +1, 47 Challenge, 48 4seven, 57 Smithsonian Channel, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H -3dB
C39+ (618.2MHz)384mDTG-850,000W
Channel icons
25 Dave ja vu, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 41 CBS Justice, 44 HGTV, 68 CBS Drama, 82 Talking Pictures TV, 84 PBS America, 234 RT, 235 Aljazeera English, plus 17 others

LCF
 H -10dB
C51 (714.0MHz)384mDTG-1210,000W
Channel icons
from 22nd September 2014: 8 Made in Cardiff,

com7
 H -3.3dB
C55 (746.0MHz)384mDTG-647,000W
Channel icons
 Together TV +1,  Merit,  Court TV, 65 FreeSports, 71 Quest Red +1, 76 Now 70s, 86 More4 +1, 87 PBS America +1, 91 That's TV , 96 Forces TV, 106 BBC Four HD, 107 BBC News HD, 113 RT HD, 114 Quest HD, 205 CBeebies HD, plus 2 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
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Which BBC and ITV regional news can I watch from the Wenvoe transmitter?

regional news image
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 6km northeast (42°)
to BBC Wales region - 206 masts.
regional news image
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 1km east-northeast (74°)
to ITV Wales region - 206 masts.

Are there any self-help relays?

AbergwesynActive deflector7 km N Llanwrtyd Wells20 homes
BarryTransposer10 km SW city centre300 homes
Celtic ManorTransposer5 km E Newport80 homes
PentrebachTransposer3 km S Merthyr Tydfil100 homes
YstradfellteActive deflector30 km NE Port Talbot20 homes

How will the Wenvoe (Cardiff, Wales) transmission frequencies change over time?

1950s-80s1984-971997-981998-20102010-1323 Jan 132013-1715 May 2019
VHFB E TB E TB E TB E TB E K TW TW T
C5BBCtvwaves
C30LOCAL2
C31com7com7
C37com8com8
C39 ArqBArqBArqB
C41ITVwavesITVwavesITVwaves+BBCA+BBCA+BBCABBCA
C42+SDN+SDN+SDNSDN
C44BBC1wavesBBC1wavesBBC1wavesD3+4D3+4D3+4D3+4
C45+ArqA+ArqA+ArqAArqA
C47C4wavesC4wavesC4wavesBBCBBBCBBBCBBBCB
C49tv_off+ArqB
C51tv_offBBC2wavesBBC2wavesBBC2wavesLCFLCF
C55tv_offcom7tv_off
C56tv_offCOM8tv_off

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 3 Mar 10 and 31 Mar 10.

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

Analogue 1-4 500kW
BBCA, D3+4, BBCB(-7dB) 100kW
com8(-9.7dB) 53.2kW
SDN, ARQA, ARQB(-10dB) 50kW
com7(-10.3dB) 47kW
Mux 1*, LCF(-17dB) 10kW
Mux 2*, Mux A*, Mux B*, Mux C*, Mux D*(-20dB) 5kW

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. Wenvoe 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
Monday, 10 September 2012
justin ball
10:53 PM
Caerphilly

I am able to pick up a signal from wenvoe which includes bbc hd, itv hd etc, however film 4 and both sky sports channels (via bt vision are very pixellated. my aerial is located outside on the side of my house but is above the overall height of my property.
i currently live in bedwas and am blocked from using mynydd machen transmitter by a hillside. I am able to get a signal from mendip but cannot get hd channels? any help would be greatly welcomed

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justin ball's 5 posts GB
Tuesday, 11 September 2012
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:06 AM

justin ball: The COM channels may be pixelated because the Van Terrace transmitter broadcasts on them. It is two miles away and on a bearing only 9° anti-clockwise of Wenvoe. Oh, and it is horizontally polarised as well. Unless you can move your aerial to somewhere where it will be able to "see" Wenvoe, but where it will be blocked from the interfering Van Terrace, then you're not going to be able to pick up the COMs from Wenvoe.

Even if the hill wasn't in the way, Mynydd Machen is a PSB-only transmitter, so you would be no better off. This means that it doesn't carry Film4 or Sky Sports, to name but a few.

The predictor suggests that you have a good chance of receiving from Mendip. Have you tried manually tuning to C58 for its HD (switching to DVB-T2 mode if there is an option)? Do you have two aerials or are you tuning to one of the transmitters with the aerial not facing the right way?

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Dave Lindsay's 5,724 posts GB
Wednesday, 12 September 2012
justin ball
7:53 AM
Caerphilly

Thank you dave, Ive turned my aerial too mendip and have a decent signal! just gutted i cant watch the welsh sport and news channels!...Thanks for your advice. been a great help.

link to this comment
justin ball's 5 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

10:25 AM

justin ball: I was going to suggest that you may be able to have two aerials and combine the two feeds into one downlead with a diplexer. However, looking at the channels used by Mendip's COMs and Wenvoe's PSBs, this isn't going to be possible.

Mendip's COMs are on 48, 56, 52
Wenvoe's PSBs are on 41, 44, 47

You could combine these with a diplexer that "splits" at C51, but you will loose the ability to receive SDN from Mendip on C48. You will also attenuate C52 a bit because there is a slope down to the split.

Whilst you could probably do without HD from Wenvoe (on C47), and instead use Mendip's on C58, I don't believe that there is a diplexer available that splits somewhere between 44 and 48...

It is a pity that you can't receive from Mynydd Machen as, whilst it doesn't broadcast the COM channels, it does use channels in the 20s which would be ideal for combining with Mendip.

I was also going to suggest that the diplexer could be sited indoors behind your TV so as to allow you to remove it without needing to get a ladder. This would, of course, require two downleads whereas mounting it on the aerial mast you only mean the one.


The other possibility is to have two aerials with two feeds to your living room and feed them into two different receivers. Perhaps use Mendip except where there are regional variations that you wish to watch.

If you might wish to record these variations and you only have a conventional set-top box for Wenvoe, but have a PVR on Mendip, then you could perhaps feed the set-top box into the PVR via scart.

link to this comment
Dave Lindsay's 5,724 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

10:26 AM

justin ball: For lots of information and products, see ATV Sheffield's site A.T.V (Aerials And Television) TV Aerial, DAB Aerial, FM Aerial.

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Dave Lindsay's 5,724 posts GB
Thursday, 13 September 2012
justin ball
10:30 PM

justin ball: I have fitted a labgear PUH141 4 way masthead amplifier with variable gain....how do i change the gain on this please?? its supplied with a psm114v supply. (51.5953,-3.1920) 

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justin ball's 5 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

11:22 PM

justin ball: The variable gain adjustment is made on the power unit which is usually sited behind the TV, this meaning that you do not require to enter the loft or wherever the booster / splitter is located.

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jb38's 7,179 posts GB
Friday, 14 September 2012
justin ball
8:26 AM

justin ball: on this labgear power unit i cant see the adjustment screw, its not on the outside of the unit so im pretty stumped now. (51.5953,-3.1920) 

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justin ball's 5 posts GB
justin ball
8:05 PM

justin ball: ok ive installed a 4 way masthead amp. whilst running one feed to my bt vision box last night the picture was very pixellated, Ive since run 2 more feeds to tv's around the home and the picture is now very much improved but still some distortion. would it be wise to fit a attenuator? as it seems to me that by splitting the signal off too 2 other rooms IT has actually reduced what was 'to strong' a signal. ADVICE MUCH APPRECIATED. (51.5953,-3.1920) 

link to this comment
justin ball's 5 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

11:26 PM

justin ball: I suspect that you have the PSM114 power unit and not the PSM114V type as was mentioned in your posting, as a PSM114V and a PUH141 amp provides amplification ranging from 10-20db via the adjustment screw located in a small hole on the bottom left hand face side of the power supply.

I will say though that the tuners fitted in BT Vision boxes leave a lot to be desired when compared to the likes of Panasonic or Humax types, but rather than experiment with attenuators which can be iffy in operation, and especially the cheap variable 0-20db gain types which in no way are as stable as the fixed versions, I would think about purchasing the proper PSM114V power supply as that is much smoother in operation and likewise gives superior results.

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jb38's 7,179 posts GB
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