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Full Freeview on the Durris (Aberdeenshire, Scotland) transmitter

first published this on - UK Free TV
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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Durris (Aberdeenshire, Scotland) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
_______

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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C28 (530.0MHz)639mDTG-3100,000W
Channel icons
1 BBC One (SD) Scotland, 2 BBC Two Scotland, 7 BBC Alba, 23 BBC Three, 24 BBC Four (Scotland SD), 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 12 others

PSB2
D3+4
 H max
C25 (506.0MHz)639mDTG-3100,000W
Channel icons
3 STV (SD) (STV North (Aberdeen micro region)), 4 Channel 4 (SD) Scotland ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 Scotland ads, 18 More4, 25 ITV4, 30 E4 +1, 35 ITV +1 (STV Edinburgh), 35 STV+1 (STV Edinburgh),

PSB3
BBCB
 H max
C22 (482.0MHz)639mDTG-6100,000W
Channel icons
73 Shopping Quarter , 101 BBC One HD Scotland, 102 BBC Two HD (England), 103 ITV HD (STV West), 103 STV HD (STV West), 104 Channel 4 HD Scotland ads, 105 Channel 5 HD, 108 BBC Scotland HD, 204 CBBC HD, plus 1 others

COM4
SDN
 H -3dB
C23 (490.0MHz)639mDTG-850,000W
Channel icons
 CCXTV, 12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 42 GREAT! movies action, 45 Channel 5 +1, 56 5SELECT, 58 ITVBe +1, 59 ITV3 +1, 60 ITV4 +1, 64 Blaze, 67 CBS Reality, 68 Horror Channel, 74 Drama +1, 78 TCC, 81 Blaze +1, 203 CITV, 211 Ketchup TV, 212 YAAAS!, plus 16 others

COM5
ArqA
 H -3dB
C26 (514.0MHz)639mDTG-850,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 4Music, 36 pick, 40 Quest Red, 43 Food Network, 46 Film4 +1, 47 Challenge, 48 4seven, 57 Smithsonian Channel, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H -3dB
C30 (546.0MHz)639mDTG-850,000W
Channel icons
25 Dave ja vu, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 41 CBS Justice, 44 HGTV, 68 CBS Drama, 82 Talking Pictures TV, 84 PBS America, 234 RT, 235 Aljazeera English, plus 17 others

com7
 H -8.4dB
C55 (746.0MHz)639mDTG-614,500W
Channel icons
from 20th May 2014:  Together TV +1,  Merit,  Court TV, 65 FreeSports, 71 Quest Red +1, 76 Now 70s, 86 More4 +1, 87 PBS America +1, 91 That's TV , 96 Forces TV, 106 BBC Four HD, 107 BBC News HD, 113 RT HD, 114 Quest HD, 205 CBeebies HD, plus 2 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 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?

regional news image
BBC Reporting Scotland 2.4m homes 9.2%
from Glasgow G51 1DA, 173km southwest (224°)
to BBC Scotland region - 230 masts.
regional news image
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)Transposer2 km N city centre837 homes (dealer estimate)
Aberdeen-talismanTransposer1 km SW city centre100 homes
FyvieActive deflector37 km NW Aberdeen10 homes Hotel
Glen TanarActive deflector11 km E Ballater13 homes
GlenlivetTransposer15 km E Grantown-on- Spey70 homes School
Haughton House C/pTransposer1 km N Aford Aberdeenshire1 homes 150 caravans
OyneActive deflector33 km NW Aberdeen11 homes
Strathdon ATransposer60 km W Aberdeen25 homes
Strathdon BTransposer25 homes
Strathdon CTransposer ‘appreciable population'
Strathdon DActive deflector
Strathdon EActive deflector
Strathdon FActive deflector

How will the Durris (Aberdeenshire, Scotland) transmission frequencies change over time?

1961-80s1984-971997-981998-20102010-133 Oct 2018
VHFA K TWWA K TW T
C9ITVwaves
C22BBC1wavesBBC1wavesBBC1wavesBBCBBBCB
C23SDNSDN
C25ITVwavesITVwavesITVwavesD3+4D3+4
C26ArqAArqA
C28BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C29ArqB
C30_localArqB
C32C4wavesC4wavesC4wavescom7
C35com8
C41_local
C55tv_offcom7tv_off
C56tv_offCOM8tv_off
C67C5wavesC5waves

tv_off Being removed from Freeview (for 5G use) after November 2020 - 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

Which companies have run the Channel 3 services in the Durris transmitter area

Sep 1961-Jun 1997Grampian Television
Jun 1997-Dec 2014STV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only.

Is the transmitter output the same in all directions?

Radiation patterns withheld

Comments
Monday, 27 June 2011
J
John Loveday
4:51 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 ??

link to this comment
John Loveday's 1 post GB
W
Will
sentiment_satisfiedBronze

8:00 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.

link to this comment
Will's 39 posts GB
Thursday, 30 June 2011
J
Jim Graves
2:14 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

link to this comment
Jim Graves's 1 post GB
Friday, 1 July 2011
W
Will
sentiment_satisfiedBronze

6:29 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.

link to this comment
Will's 39 posts GB
Saturday, 2 July 2011
W
William Hill
5:40 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.

link to this comment
William Hill's 15 posts GB
Tuesday, 5 July 2011
J
james
5:56 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

link to this comment
james's 3 posts GB
Wednesday, 6 July 2011
J
jb38
sentiment_very_satisfiedPlatinum

7:41 AM

james: Regrettably, it is quite impossible to say, as you (as you possibly may already know) are in a location listed as "no reception being possible", that is according to the DTG trade predictor to name but one source.

If you have a reasonable angle of South facing clearance you should really think along the Freesat line.

link to this comment
jb38's 7,179 posts GB
Thursday, 7 July 2011
Briantist
sentiment_very_satisfiedOwner

8:29 AM

Will: Good point. I will look at the code shortly to fix that error.

link to this comment
Briantist's 38,844 posts GB
Tuesday, 12 July 2011
C
Caroline Prise
7:50 PM
Turriff

When can I expect go get the channels that were lost since 15.6.11. I presently get less than what I did on plain Freeview before the big switchover. Dave and Channel 16 QVC are the ones I miss most. I know around the Banff area gets much more channels than we do. Not Fair. Postcode AB53 4BT

link to this comment
Caroline Prise's 1 post GB
K
KMJ,Derby
sentiment_satisfiedGold

10:25 PM

Caroline Prise: The problem is the frequencies now used by the COM muxes at Durris are the same as those used at Knockmore for the PSB muxes, which can result in "No Signal" in the area where coverage overlaps. The Digital UK postcode checker predicts poor reception for you from Durris on the COM muxes. The solution in many affected areas is to use Knockmore, at least for the COM muxes, however the Digital UK postcode checker makes no prediction for reception from Knockmore on any mux at your location. It is possible, since Knockmore is roughly at 90 degrees to Durris that a location for the aerial could be found where there is a signal from Durris but the Knockmore signal is nulled out.This can be very time consuming and require a lot of patience but is worth it if it proves successful.

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KMJ,Derby's 1,811 posts GB
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Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

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