Full Freeview on the Oxford (Oxfordshire, England) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 51.790,-1.179 or 51°47'25"N 1°10'46"W |  | OX3 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.
This transmitter has no current reported problems
The BBC and Digital UK report there are no faults or engineering work on the Oxford (Oxfordshire, England) transmitter._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
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 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.
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?
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
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-80s | 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 2013-18 | 2013-17 | 23 May 2018 | ||
| VHF | C/D E | C/D E | C/D E | C/D E | C/D E T | W T | W T | ||
| C2 | BBCtvwaves | ||||||||
| C29 | SDN | ||||||||
| C31 | com7 | com7 | |||||||
| C37 | com8 | com8 | |||||||
| C41 | BBCA | ||||||||
| C44 | D3+4 | ||||||||
| C46 | _local | ||||||||
| C47 | BBCB | ||||||||
| C49tv_off | C5waves | C5waves | |||||||
| C50tv_off | SDN | SDN | |||||||
| C51tv_off | LOX | LOX | |||||||
| C53tv_off | C4waves | C4waves | C4waves | +BBCA | +BBCA | +BBCA | |||
| C55tv_off | ArqB | ArqB | ArqB | com7tv_off | |||||
| C56tv_off | COM8tv_off | ||||||||
| C57tv_off | BBC1waves | BBC1waves | BBC1waves | BBCB | BBCB | BBCB | |||
| C59tv_off | -ArqA | -ArqA | -ArqA | ||||||
| C60tv_off | ITVwaves | ITVwaves | ITVwaves | -D3+4 | -D3+4 | -D3+4 | |||
| C62 | SDN | ||||||||
| C63 | BBC2waves | BBC2waves | BBC2waves |
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
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Saturday, 8 October 2011
S
Stephen7:44 PM
Since the changeover on the Oxford transmitter we have had problems with all the channels except BBC.
Our box appears to be picking up a signal from another transmitter, meaning that channels 3,4,5, etc. have a very weak signal that means that it often impossibel to get a picture.
The channels are duplicated, from what I assume is Oxford, in the 800-899 range, with excellent signal and quality.
Is there anyway to force our box, a Humax F2 Fox T receiver, to ignore the weaker signal and pick up the correct channels.
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J
jb389:03 PM
Stephen: The only satisfactory way to achieve this in some cases is to use manual tuning, that is taking it that you carried out a complete reset before the last auto-tuning.
I though you did, then carry out another factory reset, but BEFORE re-connecting the aerial start another auto tune then immediately start to watch the channels rise in the progress bar, then as soon as they get to Mux Ch50 re-connect the aerial and that will exclude anything other than Oxford from loading.
If though there is any problems with doing this, then you will have to load each Mux channel individually using manual tune.
Channels being - BBC Mux Ch53 / ITV Mux Ch60 / HD Mux Ch57 / SDN Mux Ch62 / ArqA Mux Ch59 / ArqB Mux Ch55
Note:- These latter three multiplexes being on low power.
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J
Jonathan9:41 PM
Oxford
Stephen, the Humax Fox T2 should have the ability to handle this automatically if you do a full restart
menu -> settings -> installation -> factory default
You will need your security code, but if you haven't set this it will still be the default 0000
This will do a complete scan; when it finds the signals from both transmitters it should ask you which to select as your primary transmitter, offering Oxford as the default choice.
If that fails then try manual tuning, either as jb38 suggests or using the manual tune mode on the Fox T2 where you can tell it which channels to look at.
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Jonathan's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Sunday, 9 October 2011
S
Stephen2:21 AM
Brackley
Thanks guys
I ended up doing a factory reset and manually tuning each mux.
The Humax box didn't ask me for a transmitter and there no channel count on the progress bar when it's searching and after three goes without the aerial plugged in, I gave up :)
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Stephen's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
J
jb387:47 AM
Stephen: Thanks for the update and pleased that you managed in the end.
Yes, no channel count showing in the progress bar during tuning is a right bind with some equipment, admittedly something I forgot about with the Humax or I wouldn't have mentioned the aerial out scan procedure, although the omission of channel count numbers during scanning is something I consider as a deficiency in the design of the box. (this also applying to a few others as well!)
Still, the Humax scores on some other points concerning tuner sensitivity etc so I suppose that offsets the inconvenience caused by the problem mentioned.
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D
David Pinfold10:30 AM
Banbury
Stephen - I too have bought the humax hd fox t2 receiver & like you I had it tuning into freeview from Crystal Palace which only transmits at 20KW until DSO. It seems that this tuner is extremely sensitive. Like you I had to resort to maunally tuning it. This then begs the question what the signal will be like after switchover next april & it goes to 200KW. However I have to say this was the only tuner this happened on. All the other boxes & TV's were fine.
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
J
Jonathan11:35 AM
Oxford
jb38, my fox t2 does give channel numbers as it scans; possibly different software versions are different on this? It also scans the whole range twice, and picks up different channels on the two scans, which could make your method a bit tricky; I don't know what the difference between the two scans is.
Returning to my own saga, I got the 24dB attenuator, and inserting that wiped out the signal entirely. In some ways this is a bit of a relief (a big enough attenuator should eventually do this), though it doesn't fit very sensibly with the behaviour of my 0-20dB variable attenuator.
More annoyingly, on returning to my variable attenuator the signal was not as good as before. My guess is that this is because I moved the fly lead in the process and the system is still very sensitive to that position. Various people have suggested that this could be due to a poorly shielded fly lead picking up signal, either directly or rebroadcast by the down lead (the installers didn't replace the coax below the loft when they installed the new aerial, so the condition is unknown; looking at it in the loft it seems old but sound enough).
Anyway my next set of plans involves (1) getting a better fly lead, and/or (2) trying an attenuator in the loft when the new coax from the aerial joins the down lead - this has F connectors so I can't use my existing attenuator family.
| link to this comment |
Jonathan's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
S
Steve P4:21 PM
Jonathon - can you find distinguishing characteristics between first and second scan channels? Modulation type perhaps?
I presume the pattern is repeatable.
IIRC your variable attenuator's case WAS the outer connector - apparently uninsulated. Which seems odd. Put it in a plastic box with channels cut for the wires?
Someone commented earlier about outer coax NOT being earthed. Which I suppose it is not these days when TVs no longer use 3 core flex with the neutral connected to a chassis.
Any expert comments? Are variable attenuators normally like that?
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C
Chris.SE4:39 PM
Jonathan: If you've got sufficient spare cable in the loft to trim and remake conections if needed, then just put some coax connectors on instead of F type. If there isnt't enough, you can get F-Coax convertors which should be a lot cheaper than more attenuators.
Also, see it you can check your old cable for continuity and shorts.
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D
David Pinfold8:12 PM
Banbury
Jonathan - I assume you have an aerial socket plate on the wall. If so I have found some of these cheap plates give very poor connection when installing them around my house. In one case I gave up and fitted a F plug face plate & made an F plug to standard aerial plug fly lead up which works extremely well.
| link to this comment |
David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
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