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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.

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
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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-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, 26 ITV4, 30 E4 +1, 35 ITV1 +1 (STV Edinburgh), 35 STV+1 (STV Edinburgh),

PSB3
BBCB
 H max
C22 (482.0MHz)639mDTG-6100,000W
Channel icons
56 5SELECT, 101 BBC One HD Scotland, 102 BBC Two HD (England), 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
12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H -3dB
C26 (514.0MHz)639mDTG-850,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H -3dB
C30 (546.0MHz)639mDTG-850,000W
Channel icons
 FreeSports, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 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 / 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
Wednesday, 5 September 2012
K
KMJ,Derby
sentiment_satisfiedGold

11:28 AM

A Appleby: Without knowing where you are located, preferably by a postcode, it is not possible to give specific advice based on predicted reception in the area. However there is a general problem to the North of the Durris service area affecting the COM muxes. This began after switchover when the COM muxes from Durris changed frequencies to share those in use at Knock More for the PSB muxes. The problem was noticed particularly in the Huntly area and other locations where signals are present from both transmitters. In some cases within the overlap between the two transmitters it is necessary to use two aerials, reception of the PSB muxes from Durris combined with the COM muxes from Knock More giving a full service. In cases where the Knock More signal is at too low a level to give reliable reception, but strong enough to interfere with reception from Durris the only option is to try to find a position for the aerial where there is a null for the unwanted Knock More signal. If this is the problem in your area it is quite possible that at half a mile away trees, hills or some other obstructions give screening from the interference.

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KMJ,Derby's 1,811 posts GB
Wednesday, 5 December 2012
Jim Bell
7:49 PM
Insch

Recently (on Sat 3rd Dec I think) the signal strength when watching ITV3 degraded with the picture on the screen becoming distorted and then gradually disappeared altogether with the message "no signal" being displayed.
My antenna is positioned to receive our signal from the Durris transmitter.

The "no signal" situation still prevails as at this date despite the transmitter showing no problem.

Although we had problems receiving this channel during the early stages of digital switchover, we have been receiving a good signal for this channel for over 9 months with no significant drop-off.
Can anyone explain what has changed (I am fairly sure that the problem is signal strength because that was the problem that we had during switchover).

Jim Bell

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Jim Bell's 6 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

9:09 PM

Jim Bell: Various forms of engineering work is presently being carried out at the station with periods of weak signals being unavoidably necessary, and so there really inst anything that can be done about the situation except to wait as the problem you are experiencing will be resolved in due course.

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jb38's 7,179 posts GB
Saturday, 16 February 2013
S
s Dalgleish
10:59 AM
Aberdeen

Hi

I have been having problems receiving all the BBC channels intermittently for about the past month - at times they all work perfectly, other times they have lots of little squares and at other times it just states no signal and i have no bbc channelsat all even though all the other channels on my tv work perfectly.
This morning we had great bbc channels and then around 10.30 we went to no signal again for no reason. Could you let me know if there is work being carried out this weekend on the transmitter or if there is perhaps a problem with signal strength in my area or if i may need an ariel engineer to try and look at the ariel on the roof instead. Post code is AB15 4UQ.


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s Dalgleish's 1 post GB
Wednesday, 27 March 2013
W
Wendy
5:33 PM

Hi

I am in Strichen Aberdeenshire and am suddenly only able to receive BBC channels (all good picture quality.. all other channels have been off since 25 march. with retuning sometimes able to find some channels but the TV not able to display them due to weak signal and pixilation or no signal message. Anyone got an idea what is happening. Aerial is on roof and seems undamaged.

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Wendy's 1 post GB
Thursday, 4 April 2013
M
Manny
9:27 AM
Fraserburgh

hello

I am also in strichen and cannot receive any stations on channels DVB-T 26 or DVB-T 29, they return occasionally and work perfectly, but at other times they report as no signal... ??

link to this comment
Manny's 1 post GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

11:04 AM

Wendy; Manny: The Commercial (COM) networks don't have as great a coverage as the Public Service (PSB) channels. Even for transmitters that broadcast the COMs, some viewers will be without, or may find that they are intermittant.

Unfortunately, I think you might fall into the intermittant bracket. You may or may not be lucky and be able to make adjustment to your aerial to give more reliable reception, but nothing is guaranteed. Only time would tell if it was successful.

One possibility is that you give up striving for (good) reception of the COMs and reluctantly accept that you can only receive the PSBs.

If you don't have a satellite receiver you may consider getting Freesat which is a free-to-air service. A comparison of full Freeview versus Freesat is here:

Freeview/Freesat | ukfree.tv - 10 years of independent, free digital TV advice


A full list of Freeview services by PSB/COM multiplex is here:

DTG :: DTT Services by Multiplex


The reason for the inferior COM coverage is as follows (this is the long answer):

The COM channels from Durris are at lower transmission power to the PSBs. The COM channels are co-channel (same frequencies) with the PSBs of Knockmore; the PSBs are not. So the reason for the lower power COMs is because the channels are 're-used' in much closer proximity. This is common for all COM transmitters.

For that reason you could either be suffering due to the lower power COMs, or you could be picking up interference from Knockmore, or it could be a bit of both. Indeed, how much signal (interference) travels to you from Knockmore is likely to vary over time. Maybe it will be seasonal due to what is on the terrain changing over time.

You may be able to reposition your aerial to somewhere that the interference from Knockmore isn't as great (assuming this to be the cause). For example, putting it onto one side of the house or using a tree as a shield. A different aerial may improve matters. However, it could be something that keeps re-occurring as factors outside your control change (that is the factors that are causing the Knockmore signal to travel more and/or the Durris COMs not to be as good).

As I say, you may have to give up striving for (good) reception of the COMs and reluctantly accept that you can only receive the PSBs.

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Dave Lindsay's 5,724 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

11:09 AM

Wendy; Manny: I should add that if interference from Knockmore is the cause then it would be expected that the strength doesn't vary but that the quality does. That is, the signal is still of the same strength but the quality isn't there.

If this isn't the case then maybe it isn't interference from Knockmore, but poor signal from Durris. Maybe adjustment to your aerial (which may include replacement) may help.

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Dave Lindsay's 5,724 posts GB
Monday, 15 April 2013
H
HVC
11:16 PM

In Aberdeen AB24 postcode area.

All my BBC freeview channels have now gone from my free view list. They were initially intermittent but generally ok with enough signal strength to get a picture. Then by the 2nd or 3rd April 2013 no signal strength was available. Tried various retuning tricks but still no signal available.

Has there been any change to channel signal strength transmission on BBC channel multiplex D28?

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HVC's 1 post GB
Tuesday, 16 April 2013
J
Jon
sentiment_satisfiedBronze

5:43 PM

@ HVC
I live in AB24 area and use Durris and have noticed no difference in any channels.

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Jon's 21 posts GB
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