Full Freeview on the Oxford (Oxfordshire, England) transmitter
Brian Butterworth first published this on - UK Free TV
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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Friday, 31 January 2014
M
mazbar6:09 AM
MikeP: that doesn't rule out any problem that having the system checked won't correct , but then again I don't know how to fix a tv I only know about aerials so I stick to advice about aerials.
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R
Rob6:30 AM
Hi jb38
yet to turn the tv around, i will have a go today if i get the chance, i thought that the shielding on the tv would have been good it being Sony. However this may be the first time it hAs been near any type of strong EMI so may have been faulty all along.
Is there any check i can do inside the TV?
cheers
Rob
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R
Rob11:14 AM
Kidlington
Have borrowed an AM/FM radio so will try and identify the entry point on the wall today.
Thanks again for your help
Rob
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Rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
R
Rob3:48 PM
Hi all again,
well i borrowed the am fm radio tuned it to between stations on am turned off my tv and stuff and approached the wall. Well i got within 10 inches and the interference started, as i got closer Jesus its like really noisy, very noisy behind the tv and noisy lower too pretty much the whole section of the wall from floor to around a foot higher than my tv is alive with noise.
Well i hope the virgin engineer comes out soon to sort this out, will have to remind them next week if i don't here anything.
regards
Rob
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J
jb388:39 PM
Rob: I rather suspected that this might be the case! I will say though that most plastic cased digital equipment emits a certain level of noise that can be detected on an AM radio, although with this generally not at a high level after having passed though a properties double thick brick dividing wall, the noise referred to usually being of a purring / ripple nature especially from LCD TV's, the effect of being particularly noticeable at certain spots on an AM receivers MW band.
As far as the engineers visit to your neighbour is concerned, it would of course be advantageous to your case if you managed to be around when the engineer called at your neighbours house for the purpose of being able to give a demonstration of the problem.
The problem might even be caused by an iffy connection in the Virgin cable termination box, but with problems of this nature it could be anywhere in the system including the Virgin box itself.
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R
Rob8:51 PM
Hi jb38,
i have asked him to let me know when they are coming so hopefully i can have a chat with them. The noise was not so much a purr but a bloody great roar, really aggressive noise.
will drop him a note to remind him i think if i don't hear anything early next week.
Rob
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MikeP
9:22 PM
9:22 PM
Mazbar
With around 50 years experience in the TV servicing and manufacturing industries, I have a pretty good knowledge of installing and servicing TV and radio aerials, and satellite dishes, as well as servicing the receivers as well.
The tests carried out by Rob at the request of several contributors here have shown that the aerial installation does *not* have a problem.
If you look at Rob's reply, just above the latest from jb38 above, you will see the test shows very significant RF interference of the EMI type in the vicinity of where he normally has his TV set.
So it confirms our suspicions that the Sony TV is not at fault, though it may be more sensitive to EMI than it should be, but it appears to be some equipment (perhaps that supplied by Virgin to the neighbour) that is emitting EMI - which it should not do. There are rules about EMI radiations and susceptibility and I think this needs to be investigated by those equipped to conduct such investigations.
Rob
It might be worthwhile to look at the Ofcom website, namely Ofcom | TV or radio interference or reception problems and contacting them to investigate your problem further. (SN119HW)
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R
Rob9:43 PM
Hi mike P
Cheers i think i will contact them if i don't get any joy with virgin media. The noise does seem extreme.
cheers Rob
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Saturday, 1 February 2014
M
mazbar6:30 AM
MikeP: you say his installation does *not* have a problem but reading mist of his post he has a splitter under the floor this can let in interfereance he says he has re made fly leads well after over 20 years of seeing how people try to make there own fly leads this doesn't say there isn't still a problem. In your 50 years experance can you tell me how many times equipment from another house has caused interfereance in another property. The quickest way of testing that no one has said would be to switch off and unplug next doors virgin box and wifi router if the interfereance is still there then it isn't next door and it is in robs house.
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