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Freeview Light on the Marlborough (Wiltshire, England) transmitter

first published this on - UK Free TV
sa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.418,-1.701 or 51°25'4"N 1°42'3"Wsa_postcodeSN8 2ET

 

The symbol shows the location of the Marlborough (Wiltshire, England) transmitter which serves 4,300 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 Marlborough (Wiltshire, England) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
_______

Which Freeview channels does the Marlborough 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
C25 (506.0MHz)242mDTG-320W
Channel icons
1 BBC One (SD) West, 2 BBC Two England, 9 BBC Four, 201 CBBC SD, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 16 others

PSB2
D3+4
 V max
C28 (530.0MHz)242mDTG-320W
Channel icons
3 ITV (SD) (West), 4 Channel 4 (SD) South ads, 5 Channel 5 (SD), 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 24 ITV4, 33 ITV +1 (West), 45 Film4 +1,

PSB3
BBCB
 V max
C22 (482.0MHz)242mDTG-620W
Channel icons
86 More4 +1, 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 204 CBBC HD,

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 60 Freeview channels?

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

The Marlborough (Wiltshire, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4Music, 4seven, 4seven HD, 5SELECT, 5Spike, 5STAR, 5STAR +1, 5USA, 5USA +1, AlJazeera English (SD), Aljazeera English HD, BBC Four HD, BBC News HD, Blaze, Blaze +1, CBeebies HD, CBS Drama, CBS Justice, CBS Reality, CBS Reality +1, Challenge, Channel 4+1 HD, Channel 5 +1, CITV, Dave, Dave ja vu, DMAX, Drama, E4 +1, Food Network, Forces TV, Freesports, Home, Horror Channel, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Together TV +1, Movies4Men, NOW 80s, Now 90s, Paramount Network, PBS America, pick, Pick +1, Quest +1, Quest Red, Quest Red +1, Really, RT HD, Sewing Quarter, Sky News, Smithsonian Channel HD, Sony Movie Channel, Talking Pictures TV, TCC, Together TV, Yesterday, YourTV.

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 Marlborough transmitter?

regional news image
BBC Points West 0.9m homes 3.4%
from Bristol BS8 2LR, 63km west (275°)
to BBC West region - 60 masts.
regional news image
ITV West Country News (East) 0.9m homes 3.4%
from Bristol BS4 3HG, 60km west (273°)
to ITV West region - 61 masts.
All of lunch, weekend and 50% evening news is shared with West Country (West)

How will the Marlborough (Wiltshire, England) transmission frequencies change over time?

1950s-80s1984-971997-981998-20102010-132013-182013-1731 Mar 2018-
VHFA K TA K TA K TA K TA K TA K TA K T
C7BBCtvwaves
C22BBC1wavesBBC1wavesBBC1wavesBBCBBBCBBBCBBBCB
C25ITVwavesITVwavesITVwavesBBCABBCABBCABBCA
C28BBC2wavesBBC2wavesBBC2wavesD3+4D3+4D3+4D3+4
C32C4wavesC4wavesC4waves

tv_off Being removed from Freeview (for 5G use) by 30 June 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 24 Mar 10 and 7 Apr 10.

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

Analogue 1-4 100W
BBCA, D3+4, BBCB(-7dB) 20W

Which companies have run the Channel 3 services in the Mendip 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. Marlborough 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
Wednesday, 2 February 2011
C
Colin
3:22 PM

I receive 25 & 28 from Marlborough (4 km) and I also have an aerial for hannington (fringe reception). Both of them exhibit the same problem - relatively low signal quality on the 'commercial' channels. I noted 9&6 for Marlborough and 5&3 for hannington (out of 10).Why is this?

link to this comment
Colin's 2 posts GB
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

5:12 PM
Reading

Colin: Marlborough does not transmit the so-called commercial multiplexes at all. You're getting fringe reception from one of the full-service transmitters. This is either going to be Salisbury, which is vertically polarized, or Mendip - horizontally-polarized but more powerful.

For the "Marlborough" aerial the problem is likely to be that it's just not pointing directly at the transmitter that you're picking up, and it may be the wrong polarization and/or the wrong group (Salisbury and Mendip are both Group C/D transmitters). Salisbury is also pretty low power, though substantially higher than Marlborough. Mendip commercial multiplexes are on relatively low power (10kW) until early 2012, and you only receive a small fraction of the signal if the aerial is in the other polarization.

Hannington multiplex C and D are on 10kW at the moment. This will increase to 20kW, to match the other four multiplexes, at the end of June after some other sites, in the Central TV region, switch over. Pre-switchover Mux A requires roughly twice the power, all else being equal, to provide the same coverage area as the other multiplexes. This is because it uses a different mode, which gives a higher bitrate (more capacity) but requires more signal/less interference.

Or, you could be talking about the PSB channels with commercials, on C28. This should be about the same reported quality as on C25, but levels of interference can differ between different channels due to the frequency allocations at other sites (e.g. the site interfering on C28 might not broadcast on C25). You'll have to provide a postcode for me to find out more.

link to this comment
Mike Dimmick's 2,486 posts GB
Friday, 8 April 2011
M
Matt James
12:52 PM
Marlborough

I have two aerials one on hannington and one on Marlborough through an A and E combiner with a m/h amp. I get the PSBs all fine from Marlborough. Hannington is quite weak at times though. WOuld I be better turning the Hannington aerial over to Mendip(it's a group E).Digital UK also suggests rowridge but an E group does not work well on A groups.
Regards, Matt

link to this comment
Matt James's 1 post GB
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

3:50 PM
Reading

Matt James: Mendip PSBs are good but at the moment the commercial muxes are low power, and the prediction is poor or non-existent. Some of them power up on 28 September and change to other channels, which leaves your prediction poor. It reaches final modes and power levels on 28 March 2012 after Rowridge DSO 2, but there will be a number of changes in interference as the switchover programme completes and other transmitters go to full power. The end result will be some muxes good, some variable.

Hannington's results are expected to continue to be variable after switchover, with many of the probabilities lower than they are now.

Rowridge COM muxes clash with Marlborough's channel allocations. This will actually harm your reception of Marlborough and it goes from Good to Poor in April 2012 once they've gone full power after Crystal Palace DSO. It also means there's no prediction for Rowridge COM muxes on either polarization.

I'd wait until next April, see what you actually get from Hannington and how bad the impact on Marlborough is, then decide whether to stick with Hannington or try Mendip instead.

link to this comment
Mike Dimmick's 2,486 posts GB
Sunday, 17 April 2011
Transmitter engineering
sentiment_very_satisfiedOwner

11:33 PM

MARLBOROUGH transmitter - Freeview BBC Digital TV Off Air from 22:15 today to 22:23 today [BBC]

link to this comment
Transmitter engineering's 128,079 posts xx
Monday, 18 April 2011
Transmitter engineering
sentiment_very_satisfiedOwner

4:31 AM

MARLBOROUGH transmitter - Freeview BBC Digital TV Off Air from 22:15 yesterday to 22:23 yesterday [BBC]

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Transmitter engineering's 128,079 posts xx
Thursday, 21 April 2011
M
Maurice D Stanton
4:23 PM

I am situated across the valley from the Marborough transmitter at a distance of about half a mile, and so I should have a very strong and continuous reception.

However, the reception frequently breaks up and an intermittent signal is received. Last night the screen virtually froze for about 5 minutes.

What is causing this, and will the problem ever be rectified?

link to this comment
Maurice D Stanton's 4 posts GB
Friday, 22 April 2011
M
Maurice
5:55 PM

Thanks Briantist

I looked at the recommendations, and I don't think that is the answer. Firstly, there are no motors or mobile phones close enough, and it happens on both TVs that are at opposite ends of the house.

Any more ideas then?

link to this comment
Maurice's 4 posts GB
Saturday, 23 April 2011
Briantist
sentiment_very_satisfiedOwner

7:32 AM

Maurice: Pay an installer in to check your system.

link to this comment
Briantist's 38,846 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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