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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Wednesday, 28 September 2011
M
Mike Oxlade10:52 PM
OX33 can see Beckley from our garden and loving the new service. Full strength on all channels and can't stop watching HD - brilliant. This is the first time we have had anything that was on CH68 - ie most of the ITV channels - for nearly 2 years!!!
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Thursday, 29 September 2011
M
mst12:01 AM
Oxford
Just noticed on a Technika HD box that ArqA and ArqB on C55 and C59 are using 3/4 FEC compared to all others using 2/3 FEC. This is correct according to digitalUK until COM power up when ArqB comes in line with the others. My understanding is that FEC 3/4 has less error correction than 2/3 (25% vs 33%) to squeeze more data out of the link.
Technika signal strength Nos on same aerial connection quite different than Toppy look more like dB than percent, but trend the same BBC on C53 significant stronger than others C60 same as C55 (should be x8 or 9dB stronger) C59 weakest, but everything reported as 95% quality - which I suspect is the maximum (perfect picture).
C53 now so strong single can receive good quality signal on internal loop antenna on ground floor opposite side of house to transmitter!
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mst's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
R
Rick Mock8:26 AM
I have BT Vision and Phillips set top boxes.I live in Didcot and I now find since the switch over yesterday I have very low signal quality 25% on CH59 Dave and Dave Ja View etc.
All others seem to be at 100%
I have a set top aerial with a booster and the signal strength is around 62% on all channels except CH59.Can't remember what the signal strength is thoughbut it is a lot lower than 62%.
In fact the guy from BT who came to replace our set top box said we get better signal strength on our indoor aerial than his roof top aerial.
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Nick Wilcock: If you look at the Oxford frequency allocation table (above), if you were using any of the current six digital frequencies for your RF connection from a Sky box, then it would have been rendered useless by the presence of a high power analogue channels on it or the neighbouring frequency as they analogue four used C53, C57, C60, and C63.
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Rick Mock: I would get rid of the booster to start with. Indoor aerials perform badly for Freeview reception, and as you have not provided a full postcode it is impossible to say more.
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Mike Oxlade: I am pleased to hear that you now have all the TV services. Freeview HD is rather good, isn't it?
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J
jb388:54 AM
Jonathan: Fully appreciating that you do not have a direct line of sight to the transmitter, however I still feel that at only five miles away from a 100Kw (main Muxes) transmitter there is a possibility of you receiving a signal that's slightly too strong for your boxes tuner, especially with the aerial system you are using.
The other point being, that signal strength indications can be totally incorrect in these type of situations because of the measuring system used being upset, so purely for a test I would try reducing the input to your box by the inclusion of an attenuator in line with the aerial socket, then try a manual scan on the ITV Mux Ch60 to see what comes up.
Needless to say, and although not mentioned, but if you have any form of booster it must be removed.
It could well be that the obstruction you mention is causing a severe reduction in signal strength, but frequently they don't to the extent that some may imagine that they would do.
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Allan : You reception should be perfect. I would see Single frequency interference | ukfree.tv - independent free digital TV advice next
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Robert: You may still be able to see analogue from the Hannington transmitter at your location.
I'm glad to hear that everything is working for you.
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