Full Freeview on the Nottingham (Nottinghamshire, England) transmitter
Brian Butterworth first published this on - UK Free TV
Google map | Bing map | Google Earth | 52.987,-1.252 or 52°59'11"N 1°15'8"W | NG16 2SU |
The symbol shows the location of the Nottingham (Nottinghamshire, England) transmitter which serves 74,000 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 Nottingham (Nottinghamshire, England) 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)
The Nottingham (Nottinghamshire, England) 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 Nottingham 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)
The Nottingham (Nottinghamshire, England) 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 Nottingham transmitter?
BBC East Midlands Today 0.9m homes 3.4%
from Nottingham NG2 4UU, 9km east-southeast (117°)
to BBC East Midlands region - 17 masts.
ITV Central News 0.9m homes 3.4%
from Birmingham B1 2JT, 72km southwest (218°)
to ITV Central (East) region - 17 masts.
All of lunch, weekend and 80% evening news is shared with Central (West)
How will the Nottingham (Nottinghamshire, England) transmission frequencies change over time?
1984-97 | 1997-98 | 1998-2011 | 2011-13 | 4 Mar 2020 | |||||
A K T | A K T | A K T | W T | W T | |||||
C21 | BBC1waves | BBC1waves | BBC1waves | +BBCB | BBCB | ||||
C24 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
C27 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
C31 | C4waves | C4waves | C4waves | ||||||
C33 | SDN | ||||||||
C34 | C5waves | C5waves | |||||||
C36 | ArqA | ||||||||
C44 | _local | ||||||||
C48 | ArqB | ArqB | |||||||
C50tv_off | LNG | ||||||||
C51tv_off | SDN | ||||||||
C52tv_off | ArqA |
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 30 Mar 11 and 13 Apr 11.
How do the old analogue and currrent digital signal levels compare?
Analogue 1-5 | 2kW | |
SDN, ARQA, ARQB, BBCA, D3+4, BBCB | (-7dB) 400W | |
LNG | (-13dB) 100W | |
Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D* | (-17dB) 40W |
Local transmitter maps
Nottingham Freeview Nottingham TV region BBC East Midlands Central (East micro region)Which companies have run the Channel 3 services in the Nottingham transmitter area
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Monday, 25 July 2022
T
Ted Slater9:38 AM
Nottingham
Chris.SE:
Yes, that is the same basic aerial - the version I have, because of its age, doesn't have the inbuilt 4G filter. The one I'm using was supplied by the project (Televes 404401).
I have checked all the connections. The cable terminates on a balun pcb which is capacitively coupled (through the pcb varnish layer) to the dipole. The cable from the aerial to the splitter is only two metres long so, although I have checked end to end continuity, the loop resistance is well below my measuring capacity.
Whilst up there I also checked the aerial alignment both vertically and horizontally to verify that it is pointing to the Nottingham relay, based on the published latitude and longitude.
You can see why I'm getting exasperated.
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Ted's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
T
Ted Slater11:29 AM
Nottingham
Chris.SE:
And just to be absolutely clear, because of the capacitive coupling, there is no DC loop circuit from the cable end through the dipole. The pcb is screwed down to the ends of the dipole loops with self-threading screws.
Ted
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Ted's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
Tuesday, 26 July 2022
C
Chris.SE12:02 AM
Ted Slater:
Frustration is probably an understatement.
As the aerial has a balun, I'm glad there's no loop resistance, at least no short circuits!
With only a 2m length of cable, I would guess it's pretty obvious to check that it's not been crushed at any time which could affect its performance.
Now, in such circumstances, one has to question the (not so?) obvious. As you've checked the cable from the splitter to the TV and done those other measurements, one is left with suspicions about the aerial (especially as we both I guess, are out of other ideas).
Lofts are subject to extremes of temperature and at times there could also be condensation. Different metals in contact with one another can also have reactions over long periods of time.
So although the connections may "look" ok, I'd be inclined to unscrew everything that can be - including the dipole to balun. Make sure everything is spotlessly clean, very carefully use meths to clean contact areas only, maybe use a cotton bud, don't want to upset any varnish!
When re-assembling pay special attention to the braid clamping screws making contact with the PCB and the braid with the PCB if there is copper under it.
I really can't think of anything else at present, this has to be a really odd one.
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T
Ted Slater9:15 AM
Nottingham
Chris.SE:
Indeed. The real frustration is knowing that we used to have at leat useable reception on this channel. I didn't give you the full picture of my efforts yesterday but I took the dipole assembly off (it's only a plastic clip) removed the cable connection and pcb, cleaned and reassembled it all. The 2m cable run looks undamaged. I checked the alignment of all the elements (talk about clutching at straws). It all looks great, as you'd see if we could post photos.
Like you, I have to suspect the aerial but really can't justify the effort of replacement when it all looks so new. We are only 5km from the relay and the terrain profile shows nothing between us and it, other than the odd tree.
I would consider reorientating to Sutton if it weren't for the desire to get East Midlands news. Despite the alignment differences, I seem to get a significant signal from there! Walton isn't an option as there is an undeniable topographic obstruction in that direction.
Anyway, many thanks for your time and thoughts. I'll go and fix something I can fix.
Ted
link to this comment |
Ted's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
T
Ted Slater9:35 AM
Nottingham
Chris.SE:
I'm going to clamber into the loft again and try swinging the aerial round to Waltham to see what I get.
Desperate times, desperate measures.
Ted
link to this comment |
Ted's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
C
Chris.SE2:35 PM
Ted Slater:
Hmm, always interesting to see what else you can get.
Now, one question I haven't asked, because of your background I expect subconsciously I might have expected you to have mentioned it if it were so, but are there any new (or changed) mobile phone masts near you?
I'm wondering if there's a strong enough signal, is it getting into your system between the TV and or at the Distribution amp? If so, might it desensitise the TV tuner especially at the top end?
How easy would it be to try the filter at the back of the TV with the aerial coupled direct to the downlead (amp off)?
More straw clutching - is there an unused VHF input on the distribution amp? If so, try a shorted plug on the input, who knows what interference may get in there!
As you have a distribution amp, do you have maybe a small(er) TV on a different downlead/output that you could compare strengths/quality between C48 and the other channels? No need for exact figures, just comparisons, nor exact comparisons with the main TV.
If you have a smaller TV, how easy would it be to take it to the loft and connect direct to the aerial (no amp) and try a channel comparison and if need be also with the filter. If not practical could you have such set at the bottom of the loft stairs and have a separate length of coax from the aerial coax to the set?
This could be all straw clutching, but might eliminate any obscure possibilities!
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Wednesday, 27 July 2022
T
Ted Slater6:40 PM
Nottingham
Chris.SE:
I thought I had replied yesterday but I can't now see that post.
It was just to say that out of sheer frustration, I am going to try pointing the aerial at Waltham - we want E Midlands options.
The aerial looks fine and all connections measure as perfect. There's ;its;e else to do.
Ted
link to this comment |
Ted's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
C
Chris.SE6:53 PM
Ted Slater:
Trying my suggestions will eliminate certain things and prove others without any shadow of doubt!
Sometimes what appears to be obvious turns out not to be :(
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Saturday, 30 July 2022
C
Chris.SE1:37 AM
Ted Slater:
Recent conversation here on the Nottingham page is on p53. Some links are opening on p7 !!!
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Monday, 7 October 2024
Transmitter engineering
10:47 AM
10:47 AM
Nottingham transmitter - Nottingham transmitter: Possible effect on TV reception week commencing 07/10/2024 Pixelation or flickering on some or all channels [DUK]
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