Full Freeview on the Black Hill (North Lanarkshire, Scotland) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 55.861,-3.874 or 55°51'40"N 3°52'27"W |  | ML7 4NZ |
The symbol shows the location of the Black Hill (North Lanarkshire, Scotland) transmitter which serves 940,000 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 Black Hill (North Lanarkshire, 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
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which Freeview channels does the Black Hill 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
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which BBC and ITV regional news can I watch from the Black Hill transmitter?
BBC Reporting Scotland 2.4m homes 9.2%
from Glasgow G51 1DA, 26km west (271°)
to BBC Scotland region - 230 masts.
STV News 1.3m homes 4.8%
from Glasgow G51 1PQ, 26km west (271°)
to STV Central (Glasgow) region - 94 masts.
Are there any self-help relays?
| Ardtornish A | Transposer | 22 km NW Oban | 15 homes |
| Balquhidder | Transposer | 12 km NW Callander | 42 homes |
| Benmore B | Active deflector | 50 m WNW Glasgow | 7 homes |
| Blair Drummond | Transposer | 5 homes caravan park | |
| Blyth Bridge | Active deflector | 30 km SW Edinburgh | 50 homes |
| Glendaruel | Active deflector | 40 hotel | 40 homes hotel |
| Glendaruel B | Active deflector | 12 homes (second level) |
How will the Black Hill (North Lanarkshire, Scotland) transmission frequencies change over time?
| 1957-80s | 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 3 Oct 2018 | ||||
| VHF | B E T | B E T | B E T | E T | W T | ||||
| C10 | ITVwaves | ||||||||
| C30 | _local | ||||||||
| C32 | com7 | ||||||||
| C35 | com8 | ||||||||
| C37 | C5waves | C5waves | |||||||
| C40 | BBC1waves | BBC1waves | BBC1waves | BBCB | BBCB | ||||
| C41 | +SDN | SDN | |||||||
| C43 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
| C44 | ArqA | ArqA | |||||||
| C46 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
| C47 | ArqB | ArqB | |||||||
| C50tv_off | C4waves | C4waves | C4waves | ||||||
| C51tv_off | LG | ||||||||
| C55tv_off | com7tv_off | ||||||||
| C56tv_off | _local | COM8tv_off |
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 Jun 11 and 22 Jun 11.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-5 | 500kW | |
| SDN, ARQA, ARQB, BBCA, D3+4, BBCB | (-7dB) 100kW | |
| com7 | (-10.7dB) 42.9kW | |
| com8 | (-11.1dB) 39.2kW | |
| Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D* | (-14dB) 20kW | |
| LG | (-20dB) 5kW |
Local transmitter maps
Black Hill Freeview Black Hill DAB Black Hill TV region BBC Scotland STV Central (Glasgow micro region)Which companies have run the Channel 3 services in the Black Hill transmitter area
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Saturday, 19 October 2019
C
Chris.SE8:00 PM
John:
You have BBCB on 530MHz which is UHF28 because you are picking it up from Darvel and it's lower power than Black Hill as well as further away, this will not be helping.
What wasn't clear is how long you've had the problem, if it's just since a retune in/since September when only the Local mux moved, then you've been unlucky.
It's also possible your aerial is not pointing in quite the direction it should be, although the beam-width may be sufficient to allow sufficient reception from Darvel. Can you not at least check the angle your aerial is pointing?
It should be 16deg. S of E (106deg) for Black Hill. Darvel is 178deg. almost due S.
I suggest that you unplug the aerial and do an automatic tune - this should clear all previous tuning as no signals are being received. Then plug the aerial back in and do a manual tune for each of the UHF channels from Black Hill. You should see channels from the coverage checker, but for clarity they are - Ch.no:(MHz) -
46 (674), 43 (650), 40 (626), 41+ (634.167), 44 (658), 47 (682), 55 (746), 56 (754), 30 (546) in the order
PSB1/BBCA, PSB2/D3&4, PSB3/BBCB, COM4/SDN, COM5/ArqA, COM6/ArqB, COM7, COM8, Local.
If you want to convert UHF channel number to MHz at any time see Help | Freeview
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Sunday, 20 October 2019
J
John12:58 PM
Hi Chris, I've checked alignment and it is same as others in the street , approx 106, it could be 103, would that have an influence? Magnetic of course.
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C
Chris.SE6:24 PM
John:
That minor difference is unlikely to make much difference. But once you are tuned to the correct transmitter, as I'd said previously, it may be a case of experimenting and if you can't get to your aerial easily, it's difficult to say what might be best.
From your location, what direction is the runway in and where they touch down?
Do any of your neighbours get a similar problem?
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J
John7:29 PM
The runway is approx. 230-240 degrees, and sorry for any confusion but the signal disappears when the aircraft are overhead or approaching my house or maybe just past. They approach from approx. 50 to 60 degrees. Is it possible that the vortex or vortices could cause an issue? Thanks for all your help so far.
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Thursday, 24 October 2019
J
John10:14 AM
An update. I have retuned and all channels are from Blackhill now. Haven't spoken to my neighbours yet. The only problem seems to be 626MHz which when a plane goes over during landing, not so bad with takeoffs, the signal strength remains at 99% but the signal quality drops to 0%. With the other mux/ channels signal quality either doesn't drop or only drops a little, but picture remains good. Of course I can watch these channels, HD on 626, on standard definition but would rather have HD, if we can solve this. Cheers
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J
John4:44 PM
Hi Chris, one of my neighbours has the same issue, the other is still on holiday.
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Friday, 25 October 2019
C
Chris.SE1:21 AM
John:
I assume from what you've said your neighbour's issue is with the same HD mux. It's strange that it affects that one the way it does and not the others. I'd doubt it has anything to do with vortices, it's most like this is due to multipath reflections and digital TV transmission is usually more resilient than analogue was. Large metal objects like aircraft make good signal reflectors!
The cure, if possible, will most likely be down to how much time (and money) you might be willing to spend on the problem. Moving the aerial and/or having a more complicated and direction aerial installation MIGHT solve it, but it may not.
First thing to consider trying would be is there a location for an aerial where you still have line of sight to the transmitter but the house shields the aerial from reflections from the aircraft?
Do you know what type and make of aerial you have at present?
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J
John6:08 PM
Sorry I seem to have lost a post. It said thanks Chris. The type of aerial is similar to labgear 10 element professional high gain, small differences but 10 elements. I think I will try my local aerial engineer and see if he can fix it knowing what we've discovered without trial and error. If not I can probably live with Standard Definition on these channels. Many thanks for your help in raising my understanding and good luck. Keep up the good work.
Cheers
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Saturday, 26 October 2019
J
John7:34 PM
One thing I think is strange is why only 626MHz, the other mux's seem ok, maybe they have enough quality to begin with, so don't drop out completely. Does this mean I only have to find a way to increase the quality of 626 MHz? The signal strength doesn't drop out in any of the channels.
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