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Full Freeview on the Oxford (Oxfordshire, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.790,-1.179 or 51°47'25"N 1°10'46"Wsa_postcodeOX3 9SS

 

The symbol shows the location of the Oxford (Oxfordshire, England) transmitter which serves 410,000 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.

Are there any planned engineering works or unexpected transmitter faults on the Oxford (Oxfordshire, England) mast?

Oxford transmitter - Oxford transmitter: Possible effect on TV reception week commencing 25/03/2024 Pixelation or flickering on some or all channels Digital tick


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

Which Freeview channels does the Oxford 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)295mDTG-100,000W
Channel icons
1 BBC One (SD) South (Oxford), 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 17 others

PSB2
D3+4
 H max
C44- (657.8MHz)295mDTG-100,000W
Channel icons
3 ITV 1 (SD) (Meridian/Central (Thames Valley micro region)), 4 Channel 4 (SD) South ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Central west),

PSB3
BBCB
 H max
C47 (682.0MHz)295mDTG-100,000W
Channel icons
46 5SELECT, 101 BBC One HD South (Oxford), 102 BBC Two HD England, 103 ITV 1 HD (ITV Central West), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -3dB
C29 (538.0MHz)295mDTG-850,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 H -3dB
C37- (601.8MHz)319mDTG-850,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

COM6
ArqB
 H -3dB
C31 (554.0MHz)319mDTG-850,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

LOX
 H -10dB
C46 (674.0MHz)295mDTG-1210,000W
Channel icons
from 22nd December 2014: 7 That's Oxford,

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 Oxford transmitter?

regional news image
BBC South (Oxford) Today 0.4m homes 1.6%
from Oxford OX2 7DW, 6km west-southwest (258°)
to BBC South (Oxford) region - 6 masts.
BBC South (Oxford) Today shares 50% content with Southampton service
regional news image
ITV Meridian News 0.9m homes 3.4%
from Whiteley PO15 7AD, 102km south (182°)
to ITV Meridian/Central (Thames Valley) region - 15 masts.
Thames Valley opt-out from Meridian (South). All of lunch, weekend and 50% evening news is shared with all of Meridian+Oxford

How will the Oxford (Oxfordshire, England) transmission frequencies change over time?

1950s-80s1984-971997-981998-20112011-132013-182013-1723 May 2018
VHFC/D EC/D EC/D EC/D EC/D E TW TW T
C2BBCtvwaves
C29SDN
C31com7com7
C37com8com8
C41BBCA
C44D3+4
C46_local
C47BBCB
C49tv_offC5wavesC5waves
C50tv_off SDNSDN
C51tv_offLOXLOX
C53tv_offC4wavesC4wavesC4waves+BBCA+BBCA+BBCA
C55tv_offArqBArqBArqBcom7tv_off
C56tv_offCOM8tv_off
C57tv_offBBC1wavesBBC1wavesBBC1wavesBBCBBBCBBBCB
C59tv_off-ArqA-ArqA-ArqA
C60tv_offITVwavesITVwavesITVwaves-D3+4-D3+4-D3+4
C62SDN
C63BBC2wavesBBC2wavesBBC2waves

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 14 Sep 11 and 28 Sep 11.

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

Analogue 1-4 500kW
BBCA, D3+4, BBCB(-7dB) 100kW
SDN, ARQA, ARQB(-10dB) 50kW
Analogue 5(-11dB) 40kW
com8(-14.7dB) 17.1kW
com7(-14.8dB) 16.4kW
Mux 1*, Mux 2*, LOX(-17dB) 10kW
Mux C*, Mux D*(-18dB) 8kW
Mux A*, Mux B*(-19.2dB) 6kW

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

Feb 1956-Jul 1968Associated TeleVision†
Feb 1956-Jul 1968Associated British Corporation◊
Jul 1968-Dec 1981Associated TeleVision
Jan 1982-Dec 2006Central Independent Television
Dec 2006-Feb 2009ITV Thames Valley
Feb 2009-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. Oxford 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, 23 October 2013
M
MikeB
sentiment_very_satisfiedPlatinum

2:51 PM

AlgernonBlack: So your actually saying that you did have excellent reception, but your going to Freesat anyway?

link to this comment
MikeB's 2,579 posts GB flag
Saturday, 26 October 2013
A
AlgernonBlack
sentiment_satisfiedBronze

7:35 PM
Cheltenham

Mike B.
My problem all along has been the failure of Freeview due to weather. This year has been awful.
The transmissions do not provide reception of all programmes, to all viewers, all of the time, so I have moved to FREESAT. It is brilliant. Plus there are a host of additional channels available free.





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AlgernonBlack's 23 posts GB flag
AlgernonBlack's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
M
MikeB
sentiment_very_satisfiedPlatinum

9:23 PM

AlgernonBlack: Freesat is an excellent system, and of course has no problems with local weather.

However. it seems that many of your problems might have been caused by too much signal strength, rather than too little. Digital via terrestial has been successful for most people, most of the time, and once problems have been overcome, offer excellent service with little need for extra expense.

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MikeB's 2,579 posts GB flag
Saturday, 9 November 2013
J
Jeff Boyle
6:15 PM

Hi,

I live in Swindon, Wilts and our freeview reception was perfect until a short time ago.
Then we lost many channels ITV, CH4, CH5 , E4, Film4 and many others, yet we still have BBC1, BBC2 and a number of others. I received a filter of some sort identified by CH60 on it and a leaflet saying that due to the turning on of 4G system this
'might' interfere with freeview reception. If I connect this filter between the aerial and the mast amp or boost this will allow me to receive all signals again and normal reception as before. Well I've connected it and it doesn't work. When are the authorities going to stop their greed for money. They should not have turned on 4G until they had made sure it did not affect any other system freeview or anyother one.
Unfortunately, because of the revenue generated from the mobile phone companies the authorities knowing that the 4G frequency system would affect freeview still went ahead with it because of the money it will give them ( the mobile phone companies and the authorities). Well it is totally un-acceptable and we the people are paying for our TV licences. So, when are the authorities going to resolve this freeview reception problem ?

Jeff.

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Jeff Boyle's 2 posts GB flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

6:27 PM

Jeff Boyle: In answer to your question, they won't because the spectrum has been sold.

The company Digital Mobile Spectrum Limited, which trades as "at800", was formed by the mobile operators and is charged with alleviating interference by providing one filter per household in most cases.

If the filter supplied does not solve the problem then at800 must provide another solution, but this requires the viewer to contact them rather than a web forum which is not connected with them.

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

6:35 PM

Jeff Boyle: The answer to the question is not as I said, although it is true that the decision has been made and that the spectrum has been sold.

The authorities can only resolve your reception problem when you tell them. If you haven't spoken to at800 then they aren't to know.

link to this comment
Dave Lindsay's 5,724 posts GB flag
M
Michael
sentiment_satisfiedGold

7:00 PM

Jeff Boyle: Last time I checked, the TV Licence goes towards the BBC channels and since you still have those, your comment about the licence is a bit pointless!

But if you actually want to solve your problem, get in touch with at800 as Dave says - they will tell you definitely whether 4G is the problem. If not, Freeview reception, unless it is external interference, is your responsibility.

Go to Contact at800 / DMSL | General Enquiries | at800 and phone them tomorrow.

link to this comment
Michael's 358 posts GB flag
J
Jeff Boyle
9:34 PM

Dave Lindsay:

Hi Dave,

I shall indeed be contacting this at800 company. I installed a proper digital tri fold aerial in my loft. I connected it to an 8 tv booster
amp both from Maplins. I did all this over a year ago and I never had a problem with freeview reception. The only problem I have is now and since nothing has changed at my end. Then the problem is at the transmitter end and or the 4G frequency system. The evidence and data speaks for itself this being all the many people writing in complaining about the same problem with freeview reception. In addition since we have an upfront admission by this at800 company that this 4G transmission 'might' affect freeview transmission. Again I state that they should not have been allowed to begin 4G transmission unless they had resolved all known issues and they already knew it would affect freeview. So, can anyone tell us why they still went ahead with the 4G transmission ?

This is causing myself and many other people major hassle not of our doing. Yet we are the one's that have to do all the running around
to get it resolved. I wonder if all the CEO's , Directors and hierarchy of the companies involved with the 4G transmission have this problem with their freeview reception in their homes.

Jeff


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Jeff Boyle's 2 posts GB flag
Sunday, 10 November 2013
Dave Lindsay
sentiment_very_satisfiedPlatinum

1:32 AM

Jeff Boyle: The "problem" is with your system due to the strength of the 4G signal that it is picking up. It is Freeview reception that is affected, not Freeview transmission. The solution can only ever be as it is now: filtering out the 4G signals.

TV aerial systems don't tend to be fitted with expensive filters that only allow through the frequencies used by the desired transmitter. Had they been so then there would not be an issue.

Some tests were run earlier this year and the results were that fewer than expected would be affected:

Expecting 4G interference? Tests now show that you have a one in 300 chance | 4G-at-800 | ukfree.tv - 11 years of independent, free digital TV advice

If people wish to spend their time writing to complain then this will achieve nothing, other than allowing them to have a moan. The decision to use the 800MHz band for 4G has already been taken. The time for viewers to make comments was when this was being planned.

The solution in most cases is to fit a filter. Where this doesn't work then at800 has an obligation to take other steps. It is hardly going to take such steps with a particular household - before the 4G transmitter is switched on - just incase a filter won't work!

In your case the filter should be fitted between the aerial and the signal amplifier.

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Dave Lindsay's 5,724 posts GB flag
P
pikpilot
sentiment_satisfiedBronze

11:34 AM
Swindon

I was about to post about the filter location and then saw the last line of the post above.

A filter should always be placed after the aerial and before the amplifier. The reason is that if placed after the amplifier, the amplifier input will try to amplify the strong unwanted signal (4G CH 60 in this case) and the amp can be overloaded. The result of that is is non-linear operation, possibly creating new unwanted interference on other frequencies, and with some amps, an automatic reduction of gain across the whole frequency range.

Go into the loft and place the filter before the amplifier and let us know the result.

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pikpilot's 23 posts GB flag
pikpilot's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
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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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