Full Freeview on the Knockmore (Moray, Scotland) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 57.532,-3.136 or 57°31'56"N 3°8'8"W |  | AB55 6XP |
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._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
The Knockmore (Moray, Scotland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
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.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
The Knockmore (Moray, Scotland) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the Knockmore transmitter?
BBC Reporting Scotland 2.4m homes 9.2%
from Glasgow G51 1DA, 199km south-southwest (203°)
to BBC Scotland region - 230 masts.
STV News 0.4m homes 1.5%
from Aberdeen AB12 3QH, 77km southeast (126°)
to STV North (Aberdeen) region - 76 masts.
Are there any self-help relays?
| Berriedale | Active deflector | 90 km NE Invernes, | 13 homes |
| Carron | Transposer | 20 km S Elgin | 35 homes |
| Glascarnoch C | Active deflector | ||
| Langwell | Active deflector | 90 km NE Invernes | 3 homes |
| Lochrosque | Active deflector | Lochrosque Lodge 40km W Dingwall | 2 homes |
| Turriff C/p | Transposer | Aberdeenshire | 1 homes 60 caravans |
How will the Knockmore (Moray, Scotland) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2010 | 2010-13 | 2013-18 | 2013-17 | 23 Aug 2017 | |||
| A K T | A K T | A K T | W T | W T | W T | W T | |||
| C23 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | D3+4 | |||
| C26 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | BBCA | |||
| C29 | C4waves | C4waves | C4waves | BBCB | BBCB | BBCB | BBCB | ||
| C31 | BBCA | ||||||||
| C33 | BBC1waves | BBC1waves | BBC1waves | SDN | |||||
| C36 | ArqA | ||||||||
| C37 | D3+4 | ||||||||
| C48 | ArqB | ||||||||
| C53tv_off | SDN | SDN | SDN | ||||||
| C56tv_off | _local | _local | _local | _local | |||||
| C57tv_off | ArqA | ArqA | ArqA | ||||||
| C60tv_off | -ArqB | -ArqB |
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 8 Sep 10 and 22 Sep 10.
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
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Thursday, 22 March 2012
J
John7:12 PM
Hi
I have just purchased a Panasonic PVR with Freeview+. It set up fine with HD etc but is missing the COM 4,5 & 6 channels with the weaker signals. Strangely, my Panasonic TV'x inbuilt standard tuner receives these channels.
Why is Freeview+ not able to receive weaker channels when standard Freeview can?
Is there anything I can do to get these missing channels on Freeview+?
Thanks
AB554AL
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John: Different receivers work differently and some may be more sensitive to others. That is both sensitivity of signals and immunity to interference.
I would not read anything into "Freeview" and "Freeview+" as these are simply brand names associated with non-recording and recording devices.
Have you had your Group A aerial replaced with a wideband one (or a second Group C/D aerial fitted)? If you haven't had this done, then that will explain poor reception of the COMs. If you would like me to explain what this means, then let me know.
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Friday, 23 March 2012
J
John12:26 PM
Dave
Many thanks for your reply.
I originally had my aerial replaced so that I could receive Freeview, but I do not know what type it is.
Both my Panasonic TV & my cheapo Alba tuner receive these channels, but the Alba has a poor picture quality (ghosting & reds sometimes flashing blue).
The new Panasonic PVR has a very good picture reception, much better than the Alba, but the Alba gets the extra channels.
It seems that there are two anomalies here:
(i)I have two Panasonic tuners, one gets Com4-6 and one doesn't.
(ii) The Alba has worse picture quality but picks up COM4-6 whereas the new Panasonic tuner has great picture quality but doesn't get COM4-6.
I would like to use the new Panasonic PVR to replace the Alba, as it is better in several ways. Unfortunately, the channel I use most often is on COM6.
Any suggestions you have or things I could try would be greatly appreciated.
Best
John
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John: I would agree that there are two issues.
(i) Issues with reception:
I think that the issue won't be with your aerial as you have had it replaced as I expected you might need to have done.
Is this a new problem?
Where does your aerial system serve? Does it just go to one point, e.g. the lounge, or is it split and if it is split is this a powered booster/amplifier?
If there is more than one aerial point (i.e. it serves more than one room), try connecting it to another point and tuning in the Panasonic that doesn't pick up the COMs. If there is manual tuning, then use it. Channels are COM4/SDN=C53, COM5/ArqA=C57 and COM6/ArqB=C60.
I don't think that the issue will be to weak a (COMs) signal at your aerial. At 6 miles from the transmitter, you have clear line of sight (assuming no local obstruction).
I came across this picture of Balvenie Castle and the transmitter can clearly be seen on the horizon:
Panoramio - Photo of Balvenie Castle
The image can be clicked for a high resolution one and there is no doubt that it is the television transmitter.
There is a possibility to be mindful of that the signal level being too high with the clear line of sight to the transmitter. For this reason, amplifiers should be removed if possible, if only for test/fault finding purposes.
A set-top aerial is another way of testing, it providing a lower signal level (assuming that it's sited in a suitable place).
(ii) The picture issue from the Alba is likely to be an issue with the connection between it and the TV or a problem with the output connection on the box or input connection on the TV.
There are two commonly used formats that are connected using a scart lead:
1. Composite video: This uses one conductor (wire) to carry the video. By its very nature this means that all the picture is sent down one wire (and obviously split up as necessary, as it were, at the other end).
2. RGB: This stands for "red, green, blue" and this uses a separate wire for each colour. This provides a better quality picture than composite video because it keeps the colour components separate.
The fact that you are saying that one or more colours is lost intermittently suggests that this is using RGB and that the problem is an intermittent connection with one or more of the three conductors. Perhaps try another scart lead or try connecting it to another television.
It's usually the case that TVs that have more than one scart socket on have one that accepts RGB signals and this is usually Ext1 (or AV1). So if you remove the scart plug from Ext1 on the TV and plug it in to Ext2, it may appear to solve the problem, but you will probably have just connected it using composite video.
The ghosting you see if likely to be an issue with the scart lead.
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Tuesday, 27 March 2012
J
John8:12 PM
Many thanks for that Dave.
I can now get all of the stations. I resolved the problem by replacing the HDMI cable. Presumably the first was faulty.
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John: Good to hear you got it sorted.
It was the HDMI lead; as simple as that!
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Wednesday, 24 October 2012
J
John9:30 PM
Berriedale
I am told Rumster would be the best for my area however this is not the case. I would like to know the compass headings for alternative sites which I can access from my area North Berriedale. A couple of years ago I received signals from europe while being unable to get signals from our own transmitters very confusing ?
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John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
J
jb3811:41 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.
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Thursday, 12 September 2013
I
ian5:44 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?
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Saturday, 7 February 2015
C
Colin Swan2:24 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 comment |
Colin's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
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