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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
Friday, 2 October 2015
J
jb38
sentiment_very_satisfiedPlatinum

9:55 AM

robert wilson: As far as the problems with reception are concerned. No faults have been posted on the engineering notice board (as yet) concerning transmission failures at the Durris transmitter, nor is any engineering work in progress at the station. However the undermentioned should be noted, as it's very much applicable to the two postal code areas referred to.

Although DUK's reception predictor does show Durris as being the station covering the AB43-6 postal code area, however, it might as well not be!, as only three out of Durris's eight multiplexes are indicated as being receivable in the area, but though with only the BBC's HD mux (C22) in the category of "good", both BBC (C28) & ITV (C25) indicating "poor".

A subsequent terrain check of the area in question revealing that the signal path from Durris suffers from three line-of-sight obstructions starting from approx six miles out, the worst being from three miles out.

AB42-1 has slightly different prediction for reception, insomuch that all Duriss's eight multiplexes are indicated as being receivable, but though with only COM7 HD (C32) in the category of "good", the remainder being "variable", the signal path from Durris suffering from a continuous line-of-sight obstruction from approx five miles out.

Line-of-sight obstructions of this nature always have a much greater affect on reception the closer they are located to the receiving end of the signal path, reception in these areas only being possible in the first place through diffraction (signal bending), something which is less effective if located too close to the obstruction. (the shielding effect)

Another aspect being, that reception under these conditions is more vulnerable to being affected by seasonal changes such as to the surface of the terrain etc. (e.g: summer / winter effect)

The L.O.S obstructions referred to can be seen by opening the undermentioned links, the first two being reception predictions for AB42 and its corresponding terrain. The bottom two being similar but for AB43.


Coverage Checker - Detailed View


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



Coverage Checker - Detailed View


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



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jb38's 7,179 posts GB flag
N
Nigel
3:24 PM

Could not receive tv channels on either of our two tvs last night.

link to this comment
Nigel's 1 post GB flag
J
John
7:45 PM

Nigel: all channels gone except 6 German !???, Cullingworth address fed from idle mast. Retuned many times, no joy. HELP.

link to this comment
John's 1 post GB flag
J
jb38
sentiment_very_satisfiedPlatinum

10:05 PM

John: The Cullingworth relay is listed with a warning of "possible service interruptions".

If though you are actually meaning that you reside in the Cullingworth area? but are, or (magically!) have been receiving Freeview from the Idle transmitter, then there isn't any problems, as Cullingworth is well outwith the coverage area of the Idle transmitter, and as such, anything that might have been received from Idle is almost guaranteed to be totally erratic.

link to this comment
jb38's 7,179 posts GB flag
J
jb38
sentiment_very_satisfiedPlatinum

11:02 PM

John : In addition / alteration to that said. Although as previously mentioned, the Cullingworth area is seen to be well outside the Idle transmitters coverage area (as indicated on the TX's coverage map), however, a Cullingworth test p/code of BD13-5 did indicate that reception was possible in that particular area.

The point which intrigued me was your reference to "everything gone with the exception of 6 German channels", as this points to interference from foreign channels, something which can happen as seasons change, and a possible reason why so many problems are being experienced by viewers residing in the Eastern areas of the UK, whereas not to any great extent elsewhere.

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jb38's 7,179 posts GB flag
Monday, 5 October 2015
Transmitter engineering
sentiment_very_satisfiedOwner

9:09 AM

DURRIS transmitter - Possible weak signal [DUK]

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Transmitter engineering's 149,799 posts xx flag
Thursday, 15 October 2015
Transmitter engineering
sentiment_very_satisfiedOwner

4:32 AM

DURRIS transmitter - Possible weak signal [DUK]

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Transmitter engineering's 149,799 posts xx flag
Monday, 19 October 2015
Transmitter engineering
sentiment_very_satisfiedOwner

9:09 AM

DURRIS transmitter - Possible service interruptions [DUK]

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Transmitter engineering's 149,799 posts xx flag
Tuesday, 27 October 2015
Transmitter engineering
sentiment_very_satisfiedOwner

4:32 AM

DURRIS transmitter - Possible service interruptions [DUK]

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Transmitter engineering's 149,799 posts xx flag
Wednesday, 25 November 2015
Transmitter engineering
sentiment_very_satisfiedOwner

4:32 PM

DURRIS transmitter - DAB: BBC National DAB Radio Weak Signal from 15:21 today. FM: Radio 1 FM Weak Signal from 15:21 today, Radio 2 FM Weak Signal from 15:21 today, Radio 3 FM Weak Signal from 15:21 today, Radio 4 FM Weak Signal from 15:21 today, Radio Scotland FM Weak Signal [BBC]

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Transmitter engineering's 149,799 posts xx flag
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Your comment please
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