Full Freeview on the Chesterfield (Derbyshire, England) transmitter
Brian Butterworth first published this on - UK Free TV
Google map | Bing map | Google Earth | 53.283,-1.429 or 53°16'60"N 1°25'43"W | S18 4BT |
The symbol shows the location of the Chesterfield (Derbyshire, England) transmitter which serves 25,000 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.
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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 Chesterfield (Derbyshire, 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 Chesterfield 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 Chesterfield (Derbyshire, 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 Chesterfield transmitter?
BBC Look North (Leeds) 1.9m homes 7.4%
from Leeds LS9 8AH, 58km north (353°)
to BBC Yorkshire region - 56 masts.
ITV Calendar 1.9m homes 7.4%
from Leeds LS3 1JS, 59km north (351°)
to ITV Yorkshire (Emley Moor) region - 59 masts.
All of lunch, weekend and 80% evening news is shared with Belmont region
How will the Chesterfield (Derbyshire, England) transmission frequencies change over time?
1984-97 | 1997-98 | 1998-2011 | 2011-13 | 5 Feb 2020 | |||||
A K T | A K T | A K T | K T | K T | |||||
C23 | ITVwaves | ITVwaves | ITVwaves | D3+4 | |||||
C26 | BBC2waves | BBC2waves | BBC2waves | BBCA | |||||
C29 | C4waves | C4waves | C4waves | BBCB | BBCB | ||||
C31 | BBCA | ||||||||
C33 | BBC1waves | BBC1waves | BBC1waves | ||||||
C37 | D3+4 | ||||||||
C40 | ArqB | ArqB | |||||||
C43 | SDN | SDN | |||||||
C46 | ArqA | 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 10 Aug 11 and 24 Aug 11.
How do the old analogue and currrent digital signal levels compare?
Analogue 1-4 | 2kW | |
BBCB | (-4dB) 800W | |
SDN, ARQA, ARQB, BBCA, D3+4 | (-7dB) 400W | |
Mux 1*, Mux 2*, Mux B*, Mux C*, Mux D* | (-17dB) 40W | |
Mux A* | (-20dB) 20W |
Which companies have run the Channel 3 services in the Emley Moor transmitter area
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Wednesday, 16 February 2022
C
Chris.SE11:02 PM
Greg:
The fact that C31 is "missing" is odd. It won't be directly/solely related to its strength. I still believe this has something to do with the way your set(s) are handling the tuning and the fact that Emley's signal appears to be stronger for the BBCA mux. Are they the same make/model?
When you have things like water tanks somewhere in front of the aerial, things can often get very unpredictable. If an aerial is not in a "particular" alignment it is possible for it to make a huge difference to reception maybe of just one multiplex, so at the moment it's anyone's guess. Especially as other nearby "external" local factors may have an influence, never mind the roof tiles, lead flashing etc etc.
One of the reasons I asked you to post the Strength and Quality figures for each mux (on the set that's only missing C31 but otherwise tuned to all Chesterfield) is to give a better idea about what might be going on.
As you have an amp/splitter (what make/model?), without changing anything else (ie. not retuning etc.) if you could also post the same Strength & Quality figures with the aerial directly fed (use a coax coupler) to the downlead for the same set and with the amp/splitter powered off.
This sort of information could help analyse what is happening without the need for professional equipment.
As far as loft environments go, yours may be dry and well ventilated but lofts can get very hot when in full sun and very cold at night if temperatures drop, and condensation can occur on anything metal, and that of course could sometimes introduce some corrosion. This is why it's always worth looking at the connections if it's been installed a long time - BUT do it after you've done and posted those Strength/Quaility figures!
As well as playing with your phone app "UK Aerial Alignment", I would use the Compass App to get a decent feel for the direction the aerial is actually pointing in. As mentioned in an earlier post Chesterfield is just 4 degrees W of due N according to DUK/Freeview's database from your location which should use the most accurate information. I've no idea what database that App might be using. BUT in any event local conditions MIGHT mean that the best alignment for the aerial is not necessarily precisely in that direction.
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Friday, 25 November 2022
M
Michael Arnold12:48 PM
10 minutes massive interference TV unwatchable.
Tuesday 22 November 2022
21.50hrs 22.00hrs.
Dronfield Summerfield Road.
Signal usually excellent and no interference.
Occasionally there is massive interference.
What is causing this?
Not propagation.
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Saturday, 26 November 2022
C
Chris.SE6:30 AM
Michael Arnold:
It's most likely to be some sort of electrical interference, but to try and narrow it down, more information would be needed.
How frequently is it occurring? Once a day, several times a day, once every few days, etc.?
What times? Does it always occur at the same time(s) of day/night?
Does it coincide with the use of any particular equipment - electrical or electronic? - eg. central heating coming on, recording equipment switched on, and so on?
Fluorescent or other discharge lighting being on? Even some LED bulbs can cause interference!
A motor vehicle/bike running (not diesel)?
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Wednesday, 12 April 2023
M
Mark kelk1:04 PM
I have a wall mounted low height 38 element aerial pointing NW of Worksop however,I am receiving multiple signals namely 3/4 different regions even ITV Granada which should be my default region or the best to receive?
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C
Chris.SE3:17 PM
Mark kelk:
We are going to need a FULL postcode to answer the technical question accurately, some parts of Worksop may get good signals from some transmitters, but others may not, it'll depend on Local terrain and any obstructive that may be on the line-of-sight to a transmitter.
Which region would you wish to be "part" of? Generally speaking you may have a choice of Yorkshire (South), Central East and Tyne Tees (when the replacement Bilsdale mast is completed early Summer). I would anticipate Granada would not be of special interest apart from which I doubt signals would be reliable and it would be a guess as to which transmitter you are actually getting (apart possibly from Winter Hill).
Some parts of Worksop may not get decent signals from Emley Moor (I'm guessing your aerial may be pointing at it as it's roughly NW), and some may not get good signals from Waltham.
You could go online and use iPlayer (possibly ITVX) to look at the local regions news to see which best covers your area of interest. As you are in Derbyshire, it might be Central East/East Midlands (from Waltham Tx) or being so close to Sheffield, it could be Yorkshire.
Apart from the Full postcode, it might help identify the transmitters if oin your TV tuning section you can say which UHF channel the set tunes to for which BBC or ITV region.
As mentioned, with an aerial pointing NW it's probably Emley for Yorkshire (UHF channels 47/44 BBC/ITV).
You may get Belmont (also Yorkshire) to the East off a rear side-lobe of the aerial (UHF 22/25).
You may get Waltham (Central East) to the SSE of a rear side-lobe of the aerial (UHF 32/34) but
Winter Hill (Granada also roughly NW well within the beam-width of the aerial) also uses UHF 32/34 for BBC/ITV multiplexes) so there may be interference depending on weather conditions. I doubt you'll be getting the Chesterfield transmitter as it's different polarisation (vertical) and low power using the same UHF channels as Waltham's/Winter Hill's COM multiplexes.
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Monday, 4 November 2024
Transmitter engineering
10:47 AM
10:47 AM
Chesterfield transmitter - Chesterfield transmitter: Possible effect on TV reception week commencing 04/11/2024 Screen may go black on some or all channels [DUK]
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