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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 27/05/2024 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

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.

 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

 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),

 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

 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 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 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

 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), 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

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

Wednesday, 8 June 2016
Richard Cooper

4:04 PM

John Jenkinson: Hi, John. According to the Digital UK Coverage checker, you are most likely to be receiving the Durris transmitter, which is one of the 80'ish MAIN FULL Freeview transmitters and one of those which carries 8 groups of channels, which we call "multiplexes". Digital UK predicts that you will get good reception on 31 channels and variable reception on 78 channels. Good reception is likely on logical channel numbers 1 to 6, followed by good reception also of BBC Alba, as well as BBC4 when BBC4 is on. Examples of variable channels are 'Dave', 'Pick', ITV3, 'Really', Yesterday, 4Music, some of the shopping channels and quite a few more of the less viewed channels. If you have a high definition (HD) receiver, you should also obtain good reception of fifteen HD channels too.It would be interesting for you to post back to say whether this is a good representation of what you are actually finding in practice. The coverage map for the Durris transmitter does indeed have quite a scattered pattern exhibiting a number of holes or dead spots, especially as you go North-Eastwards towards Peterhead and Fraserburgh, i.e. in the direction of Fetterangus. Do please post back with your comments on this post. Richard, Norwich, England, 4 p.m. on Weds. 8th. June.

link to this comment
Richard Cooper's 466 posts GB flag
Richard's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage

6:48 PM

John Jenkinson: The COM4, COM5 and COM6 muxes from Durris share frequencies with the PSB muxes from Knock More. This results in low level signals from Knock More causing reductions in signal quality or blocking of reception for viewers of the Durris COMs in affected location a. Sometimes careful positioning of the aerial intended to receive signals from Durris can help in screening out the unwanted interference from Knock More. Any problems affecting BBC programmes are not caused by Knock More, but could be helped by careful aerial positioning. Aim for signal strength less than 90 percent but quality as high as possible, preferably 100 percent.
Also beware of interference from HDMI cables (if fitted) causing problems to individual frequencies.

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KMJ,Derby's 1,811 posts GB flag
Monday, 20 June 2016
Transmitter engineering

9:09 AM

DURRIS transmitter - Possible service interruptions [DUK]

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Transmitter engineering's 151,725 posts xx flag
Friday, 8 July 2016
Transmitter engineering

11:32 AM

DURRIS transmitter - Freeview: HD Digital TV Very Weak Signal from 10:04 today to 10:12 today. [BBC]

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Transmitter engineering's 151,725 posts xx flag
Saturday, 9 July 2016
Transmitter engineering

5:31 AM

DURRIS transmitter - Freeview: HD Digital TV Very Weak Signal from 10:04 yesterday to 10:12 yesterday. [BBC]

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Transmitter engineering's 151,725 posts xx flag
Sunday, 10 July 2016
Transmitter engineering

5:31 AM

DURRIS transmitter - Freeview: HD Digital TV Very Weak Signal from 10:04 on 08 Jul to 10:12 on 08 Jul. [BBC]

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Transmitter engineering's 151,725 posts xx flag
Saturday, 30 July 2016
David Stewart
6:39 PM

Can someone explain ? I live in Insch [AB52 6NF]. I have two Humax PVRs [HDR-1800T 320GB Freeview].
An outside aerial, tuned to Durris, feeds both systems.
Two days ago I did an Automatic Search on one Humax and there were 18 TV and 1 Radio channels now downloaded that I did not have previously. I did an Automatic Search on the other Humax but only one new channel was downloaded [BBC 4 HD]. On looking online I found that all the new channels on the first Humax were listed in Multiplex COM7 HD. I also found that Durris transmits COM7 HD channels but Gartly [some 3 miles away from me] does not. Can it be that, although using the same aerial,[tuned to Durris] the second Humax is [somehow?] picking up its signal from Gartly and not from Durris ?

I would dearly like to hear from you about this puzzle. 01464 821228. David Stewart

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David Stewart's 1 post GB flag

8:39 PM

David Stewart: Firstly, never put your phone number, etc on a public site (hopefully, Brianist is watching) - nobody is ever going to contact you privately, etc, so for securities sake, all we need is a postcode for location.

Your probably right that one Humax is picking up a different transmitter. If one is getting Com7 and the other isn't, and they both have HD tuners, then either something is wrong with the connection to the aerial of one of the boxes, or its picking up a transmitter without Com 7.

Easiest way to cure that is to find out what channels both the 'good' and 'not good' transmitter are broadcasting on. The 1800T will do an auto search only, and its often the case it will find the lowest channel number (and hence wrong transmitter) first. So the trick is to pull out the aerial lead for part of its scan, and then put it back in so it catches the one you want. About a third of the way through the scan used to work for my digibox, but its a bit hit and miss, and often a couple of tries,

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MikeB's 2,579 posts GB flag

9:38 PM

David Stewart: I feel that the 18 new channels picked up by "one" of your Humax's was purely due to reception conditions happening to be favourable at the time you carried out the scan, although you would have received BBC4HD whether it was or not, as this programme channel has been "temporarily" moved onto the PSB3 HD transmitter for the duration of the Olympic games, the purpose of being to enable the maximum number of viewers to follow to said games in HD.

The reason why I referred to "favourable reception conditions" is that the signal from the Durris transmitter is seen to suffer from four line-of-sight obstructions prior to reaching your area starting from just under 8 miles out, the most sizeable of the four being two miles long, said obstructions being the reason why reception in your area is only listed as being good on the three main PSB channels (BBC /ITV/ HD service), the COM's (SDN/ ArqA / ArqB) being in the category of "poor", with COM7/8 officially considered as not being receivable in your area.

However as far as your Humax's are concerned, are both fed via a two way powered splitter? and have you tried swapping their positions over followed by carrying out another auto-scan?. Another point being, have you checked that the powered aerial facility (via installation menu) is turned off on both machines?

Further advice as required.

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jb38's 7,179 posts GB flag

11:41 PM

David Stewart : Details regarding the line-of-sight obstructions referred to can be seen by opening the undermentioned link, having meant, but forgot, to include in my previous reply.

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
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