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.
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 15/04/2024 Pixelation or flickering on some or all channels 
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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, 17 January 2014
R
Rob8:12 AM
Kidlington
Hi JB,
The TV model number is KDL37w5500, was working fine as i say up until a couple of weeks before xmas. Also there seems to be a lot of masts in kidlington and there is a tetra one close to me probably within 1/2 a mile but the interference is intermitant not all the time.
Cheers again JB for your help so far. just another question, am i right in saying that if it were the cabling then all channels would be effected not just channel 60?
Regards
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
rob4:44 PM
Kidlington
Not sure but i might have found the problem but still not sure, i split the Ariel in the loft and then had to split again down stairs from the main point on the wall under the floor to a splitter to 2 points.
plugged the Sony into the main point before it goes below the floor and things seem ok, there must be something going on under the floor, however we have had solid wooden flooring fitted now and i cannot get to the splitter to check. Think i will try running a cable from the main point above ground to the Sony in its normal position. Also the cable under the ground is single screen so if interference is present then that might not help.
plugged daughters tv in to Sony point and the signal strength said 0 on 53 but strangely the quality was 99 however it would not pick anything up on 60. Also i noticed it said modulation unknown, when plugged in the main point it picks this up and gives 100% quality with 64% strength and shows the region under modulation.
hope this is right will try cable above ground even though that will look really bad running along the skirting board.
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rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
R
rob4:58 PM
Kidlington
What should the cofdm agc be?
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rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
R
rob6:07 PM
Kidlington
Made a fly lead but still seems to happening when Sony tv is back in its normal place. Move to other end of room on the same fly lead and that seems ok. moved Sony to about 10 inches from the wall from and put the original Ariel back in that, still blipping but maybe not as much. Now i am really confused if its something on the other side of the wall or not.
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rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
R
rob6:40 PM
Kidlington
C60 channels improved, however not perfect still the odd glitch at the moment, back to my original set up, just moved the tv a little for adjoining wall, do not really know if it is that which has made the improvement or not. To get rid of the glitches can i get some kind of filter?
still cannot work out why daughters tv seemed to suggest there was no signal on the Sony Ariel point. Also the strength of the signal is high on all channels on the Sony, but suggested 64% and i could not even get the channel 60 channels at all.
still confused.
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
rob10:38 PM
Kidlington
Well its back again really bad again. Think this must be interference from my next door, they have a baby could it be their monitor? Also how can i stop this?
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rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Saturday, 18 January 2014
J
jb388:55 AM
rob: Many apologies for the delay in replying, this purely being down to work commitments in other areas and the time consuming travelling associated with same.
However, your latest reports / tests carried out etc does seem to indicate that the problem is indeed connected with interference being emitted from a device located on the other side of the dividing wall in your neighbours property, but though with the offending device not necessarily always being positioned in exactly the same place hence the erratic nature of the interference.
As far as filters are concerned, these devices will only work "if" the interference is entering the TV via its aerial socket and is not being directly injected into the set via the mains cabling etc, the other point being that your under floor cabling would not appear to come into the equation by the fact of you still experiencing the problem when using the temporary fly lead.
I feel that the only way of finding a solution to the problem is by "subtly" bringing the subject up with your neighbour, because if it is being caused by them having recently started using such as a baby alarm or some other recently acquired device then they could easily move whatever to another position within the same room as interference from these type of devices usually falls off rapidly over short distances.
As far as filters are concerned, these devices will only work "if" the interference is entering the TV via its aerial socket and is not being directly injected into the set, or maybe even via the mains cabling etc.
On the subject of your COFDM query, put in somewhat simplified terms it refers to the type of modulation system used for digital Freeview reception (DVB-T) and with the AGC referred to being the level of automatic gain that's applied by the tuner relative to the strength of the signal being received and likewise with this being subject to wide variations being seen, although the figure being indicated is always higher in strong signal areas due to the tuner levelling the signal out
You might also have seen various other technical info being mentioned such as pre and post viterbi figures etc and which are basically referring to the "before and after" bit error code correction (BER) or quality of the signal, however Sony is one of the few brands that care to provide this type of information and which it has to be said is of no assistance whatsoever to the average viewer, as its something more allied to that seen on professional signal meters as used by aerial installers etc.
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S
Simon J Bolton9:15 AM
Rob/JB38 and all - I've been following this topic with interest but I have to ask: Why be subtle with your neighbour? Just go round, explain the problem and ask them if they have anything against or near the party wall which might be causing interference. If they're nice neighbours they'll tell you anyway, and if they're not there's no point in being subtle!
If there is some sort of mobile device next door causing intermittent interference then if the neighbours are reasonable they will reposition it and that may indeed solve your reception problem. Surely better to be direct with your request rather than hope the neighbours understand subtle? Just a thought...
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R
rob10:50 AM
Kidlington
Thanks all especially jb38, will have to have a word with my new neighbors and see if they have anything on the other side of the wall. Just one more question (sorry) is it normally fir this type of interference only to effect certain programs, in my case all the ones on channel 60. Others are not affected at all.
again many thanks
Rob
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rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Sunday, 19 January 2014
J
jb3812:33 AM
rob: Yes, but only if the interference is caused by a harmonic of another frequency, for example such as in the case of interference from a Tetra base, if though the interference is cause by general digital noise then it would affect a range of channels.
This is a link to a filter that covers interference from both sources.
4G / LTE / TETRA / GSM / TV AERIAL INTERFERENCE FILTER | eBay
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