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Full Freeview on the Durris (Aberdeenshire, Scotland) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps57.000,-2.392 or 56°59'59"N 2°23'30"Wsa_postcodeAB39 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.

Are there any planned engineering works or unexpected transmitter faults on the Durris (Aberdeenshire, Scotland) mast?

Durris transmitter - Durris transmitter: Possible effect on TV reception week commencing 25/03/2024 Pixelation or flickering on some or all channels Digital tick


Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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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-100,000W
Channel icons
1 BBC One (SD) Scotland, 2 BBC Two Scotland, 7 BBC Alba HD, 23 BBC Three, 24 BBC Four (Scotland SD), 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 13 others

PSB2
D3+4
 H max
C25 (506.0MHz)639mDTG-100,000W
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, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (STV Edinburgh), 35 STV+1 (STV Edinburgh),

PSB3
BBCB
 H max
C22 (482.0MHz)639mDTG-100,000W
Channel icons
46 5SELECT, 101 BBC One HD Scotland, 102 BBC Two HD Scotland, 103 ITV 1 HD (STV West), 103 STV HD (STV West), 104 Channel 4 HD Scotland ads, 105 Channel 5 HD, 106 BBC Four HD, 108 BBC Scotland HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H -3dB
C23 (490.0MHz)639mDTG-850,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 H -3dB
C26 (514.0MHz)639mDTG-850,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

COM6
ArqB
 H -3dB
C30 (546.0MHz)639mDTG-850,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

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 / 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

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, 17 June 2013
R
Robin Mutch
8:08 PM
Banchory

Can you advise why over the past two weeks we have had no digital at times from the Durris Transmitter. Sometimes it is BBC channels at other times channels 3 and 4. This evening it is channels 1 to 4 plus all the rest of the digital channels. Location is west Banchory post code AB31 5RT. Please do not tell me there are no reported problems this is happening all to often again after a period of stability over the winter and spring.

link to this comment
Robin Mutch's 14 posts GB flag
Robin's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Dave Lindsay
sentiment_very_satisfiedPlatinum

8:30 PM

Robin Mutch: Refer to the terrain plot:


Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location


You do not have line-of-sight due to the ground dropping downwards a short distance away.

There are lots of trees, some of which are probably in the signal path. The deciduous ones drop their leaves in autumn. They will now have leaves on which may act to reduce the quality/strength of your signal.

link to this comment
Dave Lindsay's 5,724 posts GB flag
R
Robin Mutch
8:52 PM

Dave, do not accept this as now channel 3 and 4 are being received with a strong signal but still no channels 1 and 2 but they will be back on later in the evening as usually happens but then we may lose 3 and 4. There must be another explanation! Although we have trees around we have line of sight and I do not see how ground dropping would affect could understand a rise between house and transmitter. Leaves are trees all summer but we loose signal for 2 hours at a time. Nice still night no wind to give movement on trees.

link to this comment
Robin Mutch's 14 posts GB flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

9:09 PM

Robin Mutch: I do not understand why you are so quick to dismiss the possibility of it being trees. The fact that not all channels are affected is typical of the effects of trees on reception.

The point about the ground dropping was taken from the Megalithia terrain plot. Of course it only samples the ground height at intervals so it may not be entirely representative of your situation.

link to this comment
Dave Lindsay's 5,724 posts GB flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

9:12 PM

Robin Mutch: Before switchover, how was your analogue reception? Was it poor at times?

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Dave Lindsay's 5,724 posts GB flag
R
Robin Mutch
9:26 PM

Dave, and does the explanation of trees explain why I now have channels 1 and 2. As stated it is a calm night with no branch movement. I feel that it is interruptions to signal strength in this direction from the transmitter that is the cause of the problem.

Do not know what the red area is in the line of sight. Base reference to the house is not exact, we sit about 100m further back.

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Robin Mutch's 14 posts GB flag
Briantist
sentiment_very_satisfiedOwner

9:34 PM

Robin Mutch: For what it's worth, my terrain plot uses 100m interval data for the UK. Freeview reception at AB31 5RT Terrain between AB315RT and Freeview masts and the line takes into account signals above the line of sight.

You can adjust the height above the ground using the box at the bottom.


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Briantist's 38,915 posts GB flag
Briantist
sentiment_very_satisfiedOwner

9:35 PM

... and you can use lat,long if you have a exact GPS fix.

link to this comment
Briantist's 38,915 posts GB flag
Briantist
sentiment_very_satisfiedOwner

9:38 PM

... and you can see the "Old Kin Wood" which might be in the way at Freeview reception at AB31 5RT

link to this comment
Briantist's 38,915 posts GB flag
R
Robin Mutch
10:10 PM

Dave, picking up on your point on the analogue. Reception was good , since digital switchover the have been numerous issues which last for a number of weeks at a time.

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Robin Mutch's 14 posts GB flag
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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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