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Full Freeview on the Knockmore (Moray, Scotland) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps57.532,-3.136 or 57°31'56"N 3°8'8"Wsa_postcodeAB55 6XP

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The symbol shows the location of the Knockmore (Moray, Scotland) transmitter which serves 31,000 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 Knockmore (Moray, Scotland) transmitter.

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

Which Freeview channels does the Knockmore 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
C26 (514.0MHz)466mDTG-320,000W
Channel icons
1 BBC One Scotland, 2 BBC Two Scotland, 7 BBC Alba, 9 BBC Four, 120 CBBC, 121 CBeebies, 130 BBC News, 131 BBC Parliament, 601 BBC Red Button 1, plus 14 others

PSB2
D3+4
 H max
C23 (490.0MHz)466mDTG-320,000W
Channel icons
3 STV (STV North (Aberdeen micro region)), 4 Channel 4 Scotland ads, 5 Channel 5, 6 ITV 2, 13 Channel 4 +1 Scotland ads, 14 More4, 15 Film4, 24 ITV4, 28 E4, 33 STV+1 (STV Edinburgh),

PSB3
BBCB
 H max
C29 (538.0MHz)466mDTG-620,000W
Channel icons
45 Film4 +1, 101 BBC One HD Scotland, 102 BBC Two HD (England), 103 STV HD (STV West), 104 Channel 4 HD Scotland ads, 105 Channel 5 HD, 123 CBBC HD,

COM4
SDN
 H -3dB
C53 (730.0MHz)466mDTG-810,000W
Channel icons
10 ITV3, 20 Drama, 21 5 USA, 26 ITV Be, 27 ITV 2 +1, 30 5STAR, 34 ITV3 +1, 37 Quest, 44 Channel 5 +1, 54 My5, 58 ITV Be +1, 61 True Entertainment, 62 ITV4 +1, 66 CBS Reality, 70 Horror Channel, 83 Blaze, 84 Blaze +1, 122 CITV, plus 25 others

COM5
ArqA
 H -3dB
C57 (762.0MHz)466mDTG-810,000W
Channel icons
11 pick, 12 Dave, 17 Really, 29 E4 +1, 32 Movie Mix, 41 Food Network, 46 Challenge, 48 Movies4Men, 68 truTV, 69 Tru TV +1, 72 YourTV, 126 Tiny Pop, 132 Sky News, plus 12 others

COM6
ArqB
 H -3dB
C60- (785.8MHz)466mDTG-810,000W
Channel icons
 Al Jazeera English,  BT Sport 1 (not free), 18 4Music, 19 Yesterday, 25 Home, 31 Spike, 38 Quest +1, 42 Travel Channel, 47 4seven, 59 BT Showcase (not free), 64 CBS Action, 73 YourTV +1, 79 Dave ja vu, plus 23 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)

Are you trying to watch these 0 Freeview HD channels?


The Knockmore (Moray, Scotland) mast is not one of the extended Freeview HD (COM7 and COM8) transmitters, it does not provide these high definition (HD) channels: .

If you want to watch these HD channels, either use Freesat HD, or move your TV aerial must point to one of the 30 Full Freeview HD transmitters. For more information see the want to know which transmitters will carry extra Freeview HD? page.

Which BBC and ITV regional news can I watch from the Knockmore transmitter?

regional news image
BBC Reporting Scotland 2.4m homes 9.2%
from Glasgow G51 1DA, 199km south-southwest
to BBC Scotland region - 230 masts.
regional news image
STV News 0.4m homes 1.5%
from Aberdeen AB12 3QH, 77km southeast
to STV North (Aberdeen) region - 76 masts.

Are there any self-help relays?

BerriedaleActive deflector90 km NE Invernes,13 homes
CarronTransposer20 km S Elgin35 homes
Glascarnoch CActive deflector
LangwellActive deflector90 km NE Invernes3 homes
LochrosqueActive deflectorLochrosque Lodge 40km W Dingwall2 homes
Turriff C/pTransposerAberdeenshire1 homes 60 caravans

How will the Knockmore (Moray, Scotland) transmission frequencies change over time?

years1984-971997-981998-20102010-1331/7/13-2013-182019-
aerial groupA KA KWWWWA K
C22SDN
C23ITVITVITVD3+4D3+4D3+4BBCB
C25ArqA
C26BBC2BBC2BBC2BBCABBCABBCAD3+4
C28ArqB
C29C4C4C4BBCBBBCBBBCB
C30+2BBCA
600C33BBC1BBC1BBC1
C34+1
700C53ASDNSDNSDN
C56-D_local_local_local
C57+BArqAArqAArqA
C60C -ArqB-ArqB

orange background for multiplexes names more
green background for transmission frequencies
lilac background for power levels in watts
800MHz band: 4G mobile started in 2013
700MHz band: 4G from 30 June 2020more
600MHz band: new or moved digital TV services more
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Wednesdays 8th September and 22nd September 2010.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 100kW
BBCA, D3+4, BBCB(-7dB) 20kW
SDN, ARQA, ARQB(-10dB) 10kW
Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D*(-20dB) 1000W

Which companies have run the Channel 3 services in the Knock More 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. Knockmore was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Comments
Wednesday, 24 October 2012
J
jb38
11:41 PM

John: Rumster @ 10 miles / 26 degrees is, as you have mentioned indicated (in theory) as providing excellent reception at your location, and although I have my doubts as to whether or not you will receive them the two alternatives to Rumster are Rosemarkie @ 45 miles / 210 degrees and Knockmore @ 48 miles / 165 degrees, the reception predictions for Rosemarkie being "good" on the PSB channels but "variable" on the commercials, Knockmore being the reverse whereby "variable" on the PSB channels but "good" on the commercials.

I do appreciate the point you are making regarding foreign channels at times being better that locals, but that can happen with certain types of atmospheric conditions whereby a signal can be bounced back down to earth again at a considerable distance away from the transmitter, although because atmospheric reasons are involved the signal cannot be relied upon for any length of time, because as soon as these conditions inevitably start to change the signal can vanish just as quick as it was received.

link to this
jb38's 7,172 posts Platinum Platinum GB
Thursday, 12 September 2013
I
ian
5:44 PM

sometimes in spring and early autumn-for example at the moment our BBC channels suffer from interference -the other channels are usually fine ?

any ideas?

link to this
ian's 1 post GB
Saturday, 7 February 2015
C
Colin Swan
2:24 PM Carrbridge

Post code is PH23 3NA
Please can you tell me if I will be able to receive the Full Freeview service from Knock More at this site near Carrbridge called Lochanhully?

link to this
Colin Swan's 12 posts GB
Colin's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
J
jb38
5:23 PM

Colin Swan: If by "full service" you are meaning the range of commercial programmes, e.g: ITV3, Pick TV, Sky news etc?, then they are already being transmitted from Knockmore, but though your location is not indicated as being able to receive them due to the signal path from the transmitter suffering from multiple line-of-sight obstructions, even the BBC and ITV which is transmitted at a higher power, comes under the status of poor as far as reception is concerned.

Freesat is about the only way you will ever be able to view the full range of programmes, that is if the satellite dish can get a clear unobstructed view of a Southern facing skyline at (approximately) 152 degrees.

link to this
jb38's 7,172 posts Platinum Platinum GB
J
jb38
5:59 PM

Colin Swan : As an afterthought, should you be referring to the Grantown Freeview light relay of Knockmore, located @ 5.5 miles, then it (like dozens more) will not be getting upgraded, as anything other than BBC1 and ITV1 are not connected with the licence fee and as such having to be paid for purely by commercial interests, most of these interests (advertisers) having considered that the costs involved of providing and running the service would not be justified by the returns expected from areas of low population.

link to this
jb38's 7,172 posts Platinum Platinum GB
Sunday, 8 February 2015
C
Colin Swan
9:37 PM

Thank you.
Indeed reception at present is from the Grantown relay with its very limited range of stations.
Looking at aerials around this area some appear to be pointing to Knock More and are horizontally polarised so that is why I was wondering if we could erect the correct aerial and thus receive the FULL Freeview service from Knock More. What 'group' aerial is required? If it could be mounted at a reasonable height then maybe reception would be possible!
I was not aware that ITV 1 was 'connected' to the licence fee as is BBC.
Also ITV2 is on the 'Light' Freeview service but not ITV3 - why is that I wonder.

link to this
Colin Swan's 12 posts GB
Monday, 9 February 2015
J
jb38
9:21 PM

Colin Swan: What I had mentioned regarding Knockmore not being receivable at your location was based on that seen using Digital UK's postal code based reception predictor, and although information from these sources always has to taken with the proverbial pinch of salt with regards to accuracy, in your particular case the negative predictions given as far as reception from Knockmore is somewhat backed up by the terrain indicator, (not predictor) which as mentioned in my previous reply indicates multiple obstructions to the signal path from that station.

Although you mentioned as having seen a number of horizontally mounted aerials in your area appearing to point towards Knockmore, this station being on a bearing of 56 degrees whereas the Grantown relay is 68 degrees, I carried out a Google Earth rooftop tour in the Carrbridge area (starting at Packhorse Bridge) and could only find one horizontally mounted aerial, all being vertically mounted and pointing towards Grantown.

That said, it might be the case that a few choice spots for reception from the station desired is possible in your particular location, as any horizontally polarised aerial you see has to be pointing towards Knockmore as no other transmitters exist, however its really a case of just how reliable the reception is from that station, this being where it would be prudent to try and make one or two enquiries in the area where you have seen these aerials.

By the way, the aerial required to cover reception from Knockmore would have to be a wide band type, as the channels span from 23 - 60, a Log periodic type aerial used in conjunction with about a 15db (minimum) booster being an ideal choice, the SLX brand 20db variable gain boosters sold by Argos being excellent for this purpose.

Terrain indicator.


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



Reception predictor.

Coverage Checker - Detailed View

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jb38's 7,172 posts Platinum Platinum GB
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