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.
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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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Tuesday, 1 February 2011
Colin: OK, if you do not want any help, I won't provide any. Thanks.
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Oddly without any repairs, replacements etc, we have had a stable Mux 2 for 10 days. What's the betting it goes tonight.
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Robert's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Thursday, 3 February 2011
J
John10:51 PM
Whats going on? For the passed week now,we have got our pictures back. The signal all of a sudden seems to be really good with not even a hint of freezing. We have had a terrible time of it from Beckley, so this is very welcome. My neighbours are saying exactly the same thing. Have you done something up there at Beckley, and is it going to last?
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Friday, 4 February 2011
Monday, 7 February 2011
T
Tony Mallett11:28 AM
We had perfect freeview reception prior to the "fire", now we have intermittent reception on ITV1, channel4, channel5, it's a ludicrous situation and we are expected to replace our aerial. Our opinion is that the Oxford transmitter services have got it wrong, and should pay for the necessary changes. Can we have a reply from "them" please?
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Tony Mallett: I would see Freeview intermittent interference | ukfree.tv - independent free digital TV advice .
You are responsible for your reception, the transmission company is only responsible for the transmission.
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Tuesday, 8 February 2011
M
Mike Dimmick12:05 PM
Reading
Tony Mallett: some viewers in the area have found that the new transmission aerial produces higher signal strength than the old, and that causes problems with amplifiers. If you have an amplifier or booster, I suggest removing it to see if that improves matters. If not, try adding an attenuator to reduce the signal strength.
If you could provide your postcode, we can look at the prediction and the distance to the mast to see if your problems are more likely to be too much or too little signal strength, or other types of interference.
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Wednesday, 9 February 2011
P
Paul1:03 PM
I have just heard that, pror to the fire, MUX2 ( which carried ITV1, C4, Five, etc. ) was transmiited from its own aerial above the main antenna. Transmission of that MUX has now moved down to the main antenna.
So we're not all going mad, the receved signal strength of those channels really has dropped.
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Mike Dimmick4:09 PM
Paul: Before the main transmitting aerial was replaced, there were panels on top of it. These were used, the best I can tell, to increase the power-handling capability of the main aerial. The first four analogue channels and the six multiplexes were all combined onto the cylinder.
Multiplexes 1 and B also have supplementary panels below the main aerial, on one corner of the mast. Channel 5 analogue has its own skew-fire panels further down.
Source: U.K. Television Stations (UHF Digital System) and Former U.K. Television Stations (UHF Analogue System) showing muxes 2, A, C and D at an average height of 289m above sea level (AOD) and muxes 1 and B at an average 277m, and BBC1/2/ITV/C4 at 289m. Photographs at mb21 - The Transmission Gallery - 277m is actually in the middle of the FM radio panels immediately below the main antenna.
The mux 1 and B panels were moved down closer to the C5 array in order to fit the new reserve aerial, which took over services in late 2009 to allow the old cylinder to be replaced: http://tx.mb21.co.uk/gallery/oxford/oxford06.php
The new aerial was fitted in February 2010: mb21 - The Transmission Gallery . When the broadcasters tried to put it into service it caught fire, and had to be replaced.
The new, new aerial was fitted in August 2010 and went into service towards the end of the year. As far as we know, all services (except C5 analogue) are combined onto this one transmission aerial, just as before. At switchover all six high-power digital multiplexes will be combined onto this one aerial. (RG47SH)
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Friday, 11 February 2011
S
Shirley12:26 PM
Buckingham
I live in Buckingham. I bought a new Panasonic TV and a new Sony DVD/Recorder in July 2010. I had a new aerial installed. They seemed to work perfectly until the end of Dec when the DVD stopped picking up the signal from all channels except BBC1 and BBC2. The TV works perfectly when the DVD is switched off but as soon as the DVD is switched on the signal goes from the TV. The DVD has been tested in Milton Keynes and has shown it works perfectly. Do I have to wait till Sept 28 before I can use my new DVD?! What's it all about?
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Shirley's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
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