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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Tuesday, 17 April 2012
M
Mike Payne10:21 AM
Aylesbury
My aerial is on the roof and I used a signal strength meter for the best reception from Oxford. If I use 1 or 2 on the TV remote for BBC1 & 2, or 3, 4 & 5 for ITV channels I receive a poor pictures with only a 47% signal strenght. If I switch to 801, 802, 803, 804, 805 etc the strenght of the signal increases to 85% and the picture quality is very good. I would like to know why this happens and can it be changed as it confuses my father who is in his 90's and is this likely to change when Oxford goes to full power tomorrow (18th April)
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Mike Payne: Where signals from more than one transmitter are found, then receivers put these in the 800s. Different receivers have different methods of deciding which to go with as the "main" transmitter (i.e. those that get the proper logical channel numbers, 1=BBC One etc).
With such a marked difference in signal strength, it would appear that this doesn't go on signal strength! Maybe it is one of those that goes with the first it finds during the scan (and then throws the rest into the 800s). So if your transmitter happens to be on the lowest frequencies, then it is found first and you are OK.
All of Oxford's channels are at the high end...
The thing to do is to see what transmitters your receiver is picking up. It will hopefully tell you the UHF channel that it is tuned to on the signal strength screen. (I say "hopefully" because not all do and if it doesn't it rather leaves you guessing.)
Refer to this page:
Freeview multiplexes | ukfree.tv - independent free digital TV advice
Under "After switchover configuration" you will see six rows. These are the groups of services known as multiplexes or "muxes". What I would do is survey one of the services in each of the muxes. These are usually BBC One, ITV1, BBC One HD (if applicable), ITV3, Pick TV and Yesterday.
The signal strengths you have discovered perhaps suggest that Oxford is in the 800s and another transmitter is the main one. In which case poor reception on the main transmitter may ensue because the aerial is probably facing the wrong way (for the signals being picked up).
The Digital UK Tradeview predictor suggests that Sandy Heath may be a possibility at your location. Click the link beside your posting for the list of transmitters and UHF channel numbers.
The automatic tuning scan runs from channel 21 to 69. So if it doesn't give these channel numbers as it scans, and only give a percentage, you can convert target channel number to percentage.
As Oxford's start at 53, then I calculated that to be 66%. So if you run the automatic tuning scan with the aerial unplugged up to 60% you should get it. If you do not get it in in time and the receiver has manual tuning, you can manually add missing multiplexes. E.g. the lowest channel is that of BBC A, so manually tune to C53 to add it.
The only thing you've got to watch for is if there is a transmitter that is being picked up uses channels within the range of the target. This is why I suggest you survey what you have beforehand. A way round this may be to have the aerial unplugged for longer so as to avoid the other transmitter, and then manually add any missing ones.
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R
RM9:47 PM
Bampton
I have a Samsung LE40B550A TV with built-in Freeview.
I lost BBC1, BBC2 and ITV-1 on Saturday night but they were back on Sunday. Now I have lost everything.
I'm in Carterton - OX18 and have a rooftop aeriel.
I have not changed or touched anything on or around the TV.
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RM's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Wednesday, 18 April 2012
R
Robert6:53 AM
Swindon
I have just looked at the various transmitters available to us at SN3 4ST and the two Mendip ones are just 7 kilometers away, and yet the predicted channel reception is only good on 4 Coms, whereas Oxford is green on all.
Why is this. We use Oxford but given the close proximity of Mendip one would have thought a far superior signal would be received.
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Robert's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
P
Paul12:54 PM
Robert, I think you are more than 7km from the "Mendip" transmitter, but you might be close to one of its relays.
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That could be it. So does that mean the relay doesn't actually boost the power.
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S
Steve P2:05 PM
Relays provide a signal to places missed by the main transmitters - typically valleys across the direction of the signal.
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M
Mike2:55 PM
Swindon
to Robert who said "I have just looked at the various transmitters available to us at SN3 4ST and the two Mendip ones are just 7 kilometers away, and yet the predicted channel reception is only good on 4 Coms, whereas Oxford is green on all. "
Your location in Vicarage Lane, South Marston, Swindon is much closer to Oxford than Mendip transmitter. The Mendip transmitter is more like 70 km away rather than 7km (4.3 miles).
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
K
ken10:19 PM
Mike Payne.as you are in the aylesbury area,the sandy heath/east signals are sometimes picked up at the back of the oxford aerial,more some receivers can jumble these with the oxford signals such as itv4/bbc1 for example,and bbc oxford can finish in the 800s.
its signal quality your after signal strength on some receivers is at around 30% this is the maximum they will show but signal quality is at 97%,if the quality drops the strength bar rises then a loss of picture occurs.
either scan each oxford frequency individually or wait to the receiver scans just over half way and then plug in the aerial lead.this will bypass the lower sandy heath frequencies.
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