Full Freeview on the Durris (Aberdeenshire, Scotland) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 57.000,-2.392 or 56°59'59"N 2°23'30"W | AB39 3TH |
The symbol shows the location of the Durris (Aberdeenshire, Scotland) transmitter which serves 180,000 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
H/V: aerial position (horizontal or vertical)
Which Freeview channels does the Durris 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
H/V: aerial position (horizontal or vertical)
Which BBC and ITV regional news can I watch from the Durris transmitter?
BBC Reporting Scotland 2.4m homes 9.2%
from Glasgow G51 1DA, 173km southwest (224°)
to BBC Scotland region - 230 masts.
STV News 0.4m homes 1.5%
from Aberdeen AB12 3QH, 23km northeast (52°)
to STV North (Aberdeen) region - 76 masts.
Are there any self-help relays?
Aberdeen (old Town) | Transposer | 2 km N city centre | 837 homes (dealer estimate) |
Aberdeen-talisman | Transposer | 1 km SW city centre | 100 homes |
Fyvie | Active deflector | 37 km NW Aberdeen | 10 homes Hotel |
Glen Tanar | Active deflector | 11 km E Ballater | 13 homes |
Glenlivet | Transposer | 15 km E Grantown-on- Spey | 70 homes School |
Haughton House C/p | Transposer | 1 km N Aford Aberdeenshire | 1 homes 150 caravans |
Oyne | Active deflector | 33 km NW Aberdeen | 11 homes |
Strathdon A | Transposer | 60 km W Aberdeen | 25 homes |
Strathdon B | Transposer | 25 homes | |
Strathdon C | Transposer | ‘appreciable population' | |
Strathdon D | Active deflector | ||
Strathdon E | Active deflector | ||
Strathdon F | Active deflector |
How will the Durris (Aberdeenshire, Scotland) transmission frequencies change over time?
1961-80s | 1984-97 | 1997-98 | 1998-2010 | 2010-13 | 3 Oct 2018 | ||||
VHF | A K T | W | W | A K T | W T | ||||
C9 | ITVwaves | ||||||||
C22 | BBC1waves | BBC1waves | BBC1waves | BBCB | BBCB | ||||
C23 | SDN | SDN | |||||||
C25 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
C26 | ArqA | ArqA | |||||||
C28 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
C29 | ArqB | ||||||||
C30 | _local | ArqB | |||||||
C32 | C4waves | C4waves | C4waves | com7 | |||||
C35 | com8 | ||||||||
C41 | _local | ||||||||
C55tv_off | com7tv_off | ||||||||
C56tv_off | COM8tv_off | ||||||||
C67 | C5waves | C5waves |
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 1 Sep 10 and 15 Sep 10.
How do the old analogue and currrent digital signal levels compare?
Analogue 1-4 | 500kW | |
Analogue 5, BBCA, D3+4, BBCB | (-7dB) 100kW | |
SDN, ARQA, ARQB | (-10dB) 50kW | |
Mux 1*, Mux 2*, Mux A* | (-14dB) 20kW | |
com7, com8 | (-15.4dB) 14.5kW | |
Mux B* | (-17dB) 10kW | |
Mux C*, Mux D* | (-20dB) 5kW |
Local transmitter maps
Durris Freeview Durris TV region BBC Scotland STV North (Aberdeen micro region)Which companies have run the Channel 3 services in the Durris transmitter area
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Is the transmitter output the same in all directions?
Radiation patterns withheldWednesday, 22 June 2011
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Bruce Norrie11:14 AM
Peterhead
Hi there, I'm in the Peterhead area, postcode AB42 0TE. I've been having problems with channels recieved since the June 15th retune. On retuning on the 15th we were getting very few channels, but having retuned again on Monday 20th we are now recieving most channels. However, we are still not recieving the COM 6 channels (Yesterday, Film4, 4Music etc). Any idea why this is?
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Bruce's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
Friday, 24 June 2011
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Ruth11:04 AM
We are near Newmachar and have lost sound on all channels - only get pictures. Re-installation of the digibox has been performed approx ten times a day since this problem began at the weekend. What can we do?
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Mike Dimmick5:29 PM
Ruth: Check that the SCART cable is properly plugged in? If you're using an HD box with a DVI connection to the TV, the audio would need to be carried on a different cable - again, check that it's properly connected. HDMI cables carry sound on the same cable as the picture.
If you're using an RF modulator, and tuning in a channel on the TV to the box, ensure that the box and TV are both set to PAL I/System I/UK mode.
Also check that the box and TV are not muted, and if the box remote has a separate volume control, check that the TV and box volume controls are set appropriately. I set the box's volume control to maximum and control volume from the TV remote.
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Sunday, 26 June 2011
J
Joe Wheeler12:07 AM
Banchory
I've been having problems with Dave and other channels again for the past few days, retuning hasn't worked.
I live at AB31 5AD, is this a problem at your end or mine? Is it likely to be sorted or should I consider switching to FreeSat?
Cheers guys,
Joe
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Joe's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Monday, 27 June 2011
J
John Loveday4:51 PM
Inverurie
As one of the Local Councillors for Oldmeldrum I received a number of complaints regarding the COM5 ArqA Multiplex which has dropped in level since the changes on the 15th. Thats Dave, Dave Ja Vu, Pick TV ect..
I am line of site with Durris and the mast itself and I get a rubbish signal from it. All the rest are endstopping!! Whats the problem ??
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John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
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Will8:00 PM
John Loveday: Refer to previous comments by Mike Dimmick. The COM multiplexes on Durris (ArqA, ArqB and SDN) moved on the 15th June to channels 23, 26 and 29 respectively. Unfortunately, the Knockmore transmitter to the north west of Oldmeldrum transmits the PSB multiplexes on these channels and so is probably causing interference.
You haven't given a postcode so I don't know exactly where you are however I would have thought that the Durris transmitter would have given you a much stronger signal than Knockmore. It's closer and radiates at a much higher power. I know that the reception of the COM muxes in Aberdeen has improved dramatically since the 15th (some channels that were virtually unwatchable are now perfect) so there definitely has been a large increase in power.
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Thursday, 30 June 2011
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Jim Graves2:14 PM
Since the increase in power, I've seen much better results as most of the Muxes seem to be available rather than some missing or others deciding not to work
my question is this though: at the top of the page it mentions the analogue/digital signal levels comparison and says analogue was on 500k watts and BBC/ITV muxes are on 100k now, the other muxes are on 50k. When the rest of the UK is finished with DSO which I think is mid-late 2012, will the power of the Freeview muxes go anywhere near where analogue used to be so in theory, most people will be able to get them like they used to do with analogue? or is the 100/50k watts going to be the maximum level that you see for digital television signals?
we did need the change with analogue to digital but it would be nice if the only reason that digital's picture breaks up is because of transmitter work or something, not because the signal level has dropped to unacceptable levels
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Friday, 1 July 2011
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Will6:29 PM
Jim Graves: The muxes are now all being transmitted at their final power levels. There will be no further power increases.
To cut a long story short, digital signals will provide perfect picture and sound quality at much weaker strengths compared to analogue signals.
Analogue quality degrades as the signal noise increases. This is not the case with digital transmissions. The reception quality remains the same as signal noise increases up to a point in which the reception effectively falls apart rapidly. This means that a lower signal to noise ratio is required for good digital reception. In other words, the signal doesn't need to be as strong.
The power levels of the PSB muxes (100kW in the case of Durris) have been set to provide the same coverage as the old analogue signals. If you could receive the old analogue channels, then you should be able to receive muxes BBCA, BBCB (if you have an HD freeview receiver) and D3+4.
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Saturday, 2 July 2011
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William Hill5:40 PM
I receive Freeview HD through an aerial in the TD14 area (Eyemouth in the borders) so I don't normally get signals from the Durris transmitter. Last night about 40 new channels appeared on my Sony HD telly, I can only assume there were some freak atmospheric conditions, some of the channels were quite weak but several were viewable. I did a rescan
later and they disappeared. We used to get a very weak analog signal many years ago. Just shows how far a signal can travel when there is line of sight across an expanse of sea.
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Tuesday, 5 July 2011
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james5:56 PM
Alford
my aerial is up the hill at the back of house bbc channels okay yesterday dave etc are all distorted wiil i be able to get them
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james's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
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