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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 03/10/2022 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-3100,000W
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, 250 BBC Red Button, plus 16 others

PSB2
D3+4
 H max
C44- (657.8MHz)295mDTG-3100,000W
Channel icons
3 ITV (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, 30 E4 +1, 35 ITV +1 (Central west),

PSB3
BBCB
 H max
C47 (682.0MHz)295mDTG-6100,000W
Channel icons
56 5SELECT, 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Central West), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -3dB
C29 (538.0MHz)295mDTG-850,000W
Channel icons
12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H -3dB
C37- (601.8MHz)319mDTG-850,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H -3dB
C31 (554.0MHz)319mDTG-850,000W
Channel icons
 FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 others

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

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 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 (183°)
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
Sunday, 8 April 2012
R
roger C
7:48 PM
Basingstoke

I live in basingstoke and the ITV Hd chanel is giving the weather for kent sussex etc.
have we got to retune to get correct station
also we will bbc hd go reginal for local news

link to this comment
roger C's 2 posts GB
K
KMJ,Derby
sentiment_satisfiedGold

8:36 PM

roger C: At present the local news is not available on BBC HD and in many areas the wrong region is received on ITV1 HD. No doubt eventually the local news will be in HD for all regions on BBC and ITV, but at the present time when the emphasis is on cost cutting there is no hurry to incur the additional expense of making local news in HD, especially as extra capacity on satellite would be necessary if the service was to be available on all platforms. Note that at present only London and Granada are available on Freesat, with Meridian Maidstone additionally being in HD on Sky/FSFS.

link to this comment
KMJ,Derby's 1,811 posts GB
Monday, 9 April 2012
Tuesday, 10 April 2012
Transmitter engineering
sentiment_very_satisfiedOwner

10:29 AM

OXFORD transmitter - Over the next week Oxford main transmitter: TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

link to this comment
Transmitter engineering's 138,029 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

10:29 AM

OXFORD transmitter - Over the next week Oxford main transmitter: TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

link to this comment
Transmitter engineering's 138,029 posts xx
Tuesday, 17 April 2012
R
Robert
sentiment_satisfiedBronze

7:55 AM
Swindon

As I have stated before there clearly is an issue between 9 and 10 pm every night. Let's hope the increased power promised for tomorrow solves it.

link to this comment
Robert's 75 posts GB
M
Mike Payne
10:21 AM
Aylesbury

My aerial is on the roof and I used a signal strength meter for the best reception from Oxford. If I use 1 or 2 on the TV remote for BBC1 & 2, or 3, 4 & 5 for ITV channels I receive a poor pictures with only a 47% signal strenght. If I switch to 801, 802, 803, 804, 805 etc the strenght of the signal increases to 85% and the picture quality is very good. I would like to know why this happens and can it be changed as it confuses my father who is in his 90's and is this likely to change when Oxford goes to full power tomorrow (18th April)

link to this comment
Mike Payne's 5 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

11:02 AM

Mike Payne: Where signals from more than one transmitter are found, then receivers put these in the 800s. Different receivers have different methods of deciding which to go with as the "main" transmitter (i.e. those that get the proper logical channel numbers, 1=BBC One etc).

With such a marked difference in signal strength, it would appear that this doesn't go on signal strength! Maybe it is one of those that goes with the first it finds during the scan (and then throws the rest into the 800s). So if your transmitter happens to be on the lowest frequencies, then it is found first and you are OK.

All of Oxford's channels are at the high end...

The thing to do is to see what transmitters your receiver is picking up. It will hopefully tell you the UHF channel that it is tuned to on the signal strength screen. (I say "hopefully" because not all do and if it doesn't it rather leaves you guessing.)

Refer to this page:

Freeview multiplexes | ukfree.tv - independent free digital TV advice

Under "After switchover configuration" you will see six rows. These are the groups of services known as multiplexes or "muxes". What I would do is survey one of the services in each of the muxes. These are usually BBC One, ITV1, BBC One HD (if applicable), ITV3, Pick TV and Yesterday.

The signal strengths you have discovered perhaps suggest that Oxford is in the 800s and another transmitter is the main one. In which case poor reception on the main transmitter may ensue because the aerial is probably facing the wrong way (for the signals being picked up).

The Digital UK Tradeview predictor suggests that Sandy Heath may be a possibility at your location. Click the link beside your posting for the list of transmitters and UHF channel numbers.

The automatic tuning scan runs from channel 21 to 69. So if it doesn't give these channel numbers as it scans, and only give a percentage, you can convert target channel number to percentage.

As Oxford's start at 53, then I calculated that to be 66%. So if you run the automatic tuning scan with the aerial unplugged up to 60% you should get it. If you do not get it in in time and the receiver has manual tuning, you can manually add missing multiplexes. E.g. the lowest channel is that of BBC A, so manually tune to C53 to add it.

The only thing you've got to watch for is if there is a transmitter that is being picked up uses channels within the range of the target. This is why I suggest you survey what you have beforehand. A way round this may be to have the aerial unplugged for longer so as to avoid the other transmitter, and then manually add any missing ones.

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Dave Lindsay's 5,724 posts GB
R
RM
9:47 PM
Bampton

I have a Samsung LE40B550A TV with built-in Freeview.
I lost BBC1, BBC2 and ITV-1 on Saturday night but they were back on Sunday. Now I have lost everything.
I'm in Carterton - OX18 and have a rooftop aeriel.
I have not changed or touched anything on or around the TV.

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RM's 1 post GB
Wednesday, 18 April 2012
R
Robert
sentiment_satisfiedBronze

6:53 AM
Swindon

I have just looked at the various transmitters available to us at SN3 4ST and the two Mendip ones are just 7 kilometers away, and yet the predicted channel reception is only good on 4 Coms, whereas Oxford is green on all.

Why is this. We use Oxford but given the close proximity of Mendip one would have thought a far superior signal would be received.

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Robert's 75 posts GB
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