Full Freeview on the Tacolneston (Norfolk, England) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 52.518,1.139 or 52°31'6"N 1°8'22"E | NR16 1DW |
The symbol shows the location of the Tacolneston (Norfolk, England) transmitter which serves 330,000 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 Tacolneston (Norfolk, 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)
Which Freeview channels does the Tacolneston 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 Tacolneston transmitter?
BBC Look East (East) 0.8m homes 3.2%
from Norwich NR2 1BH, 16km northeast (37°)
to BBC East region - 27 masts.
70% of BBC East (East) and BBC East (West) is shared output
ITV Anglia News 0.8m homes 3.2%
from NORWICH NR1 3JG, 16km northeast (38°)
to ITV Anglia (East) region - 26 masts.
All of lunch, weekend and 80% evening news is shared with Anglia (West)
Are there any self-help relays?
Gt Yarmouth | Transposer | 1 km S town centre | 30 homes |
Lowestoft (2) | Transposer | Rotterdam Rd | 125 homes |
How will the Tacolneston (Norfolk, England) transmission frequencies change over time?
1950s-80s | 1984-97 | 1997-98 | 1998-2011 | 2011-13 | 2013-18 | 2013-17 | 17 Jul 2018 | ||
VHF | C/D E | C/D E | C/D E | E | E T | W T | W T | ||
C3 | BBCtvwaves | ||||||||
C31 | com7 | com7 | |||||||
C32 | _local | ||||||||
C37 | com8 | com8 | |||||||
C39 | +ArqB | +ArqB | ArqB | ||||||
C40 | BBCA | ||||||||
C42 | SDN | SDN | SDN | SDN | |||||
C43 | D3+4 | ||||||||
C45 | ArqA | ArqA | ArqA | ArqA | |||||
C46 | BBCB | ||||||||
C50tv_off | BBCB | BBCB | |||||||
C52tv_off | C5waves | C5waves | |||||||
C55tv_off | BBC2waves | BBC2waves | BBC2waves | -BBCA | -BBCA | -BBCA | com7tv_off | ||
C56tv_off | COM8tv_off | ||||||||
C57tv_off | LNR | LNR | |||||||
C59tv_off | ITVwaves | ITVwaves | ITVwaves | -D3+4 | -D3+4 | -D3+4 | |||
C62 | BBC1waves | BBC1waves | BBC1waves | BBCB | |||||
C65 | C4waves | C4waves | C4waves |
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 9 Nov 11 and 23 Nov 11.
How do the old analogue and currrent digital signal levels compare?
Analogue 1-4 | 250kW | |
SDN, ARQA, ARQB, BBCA, D3+4, BBCB | (-4dB) 100kW | |
com7 | (-9.6dB) 27.4kW | |
com8 | (-10.2dB) 24kW | |
Mux 1*, Mux 2*, LNR | (-14dB) 10kW | |
Mux A*, Mux B*, Mux C*, Mux D* | (-17dB) 5kW | |
Analogue 5 | (-18dB) 4kW |
Local transmitter maps
Tacolneston Freeview Tacolneston DAB Tacolneston TV region BBC East Anglia (East micro region)Which companies have run the Channel 3 services in the Tacolneston transmitter area
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Saturday, 18 May 2013
J
jb384:04 PM
tim: If you have zero quality then its most unlikely that a new aerial would make any difference, therefore its the best procedure by far to check with a neighbour or someone else nearby for the purpose of find out if others are also being affected, or that the problem is simply confined to your own installation, and should it be, then the problem could be caused by a faulty connection where the coax joins into the aerials termination box, that is if not somewhere within the actual house dependant on where the cable is routed.
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J
jb384:20 PM
tim : Just to add, that its undeniable that the efficiency of you aerial will be down by ArqB having changed to mux Ch39 "if" you have a group C/D aerial fitted, this identified by a green blanking plug on the front of the horizontal boom that holds the elements, but to get an idea of the levels received in your area you should try a signal check on mux Ch42 (ITV3) noting the level, then try the same check again on mux Ch55 (BBC) and give an update on the result.
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Peter Kaye5:05 PM
North Walsham
I live in Knapton, postcode NR28 0TW, and we get frequent, but of short duration, interference on all channels at about the same times every day. The screen pixelates and sound is lost for a few seconds on each occasion. We are about 1.5 miles distant from the Bacton Gas Terminal. Is it possible the interference emanates from their transmission towers controlling their offshore installations and if so what can we do about it? We are tuned to the Tacolneston transmitter and apart from the loss of signal due to high pressure weather systems from time to time we receive a good signal.
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Peter's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
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tim 5:41 PM
Norwich
tim : hi jb38
on each of the affected channels, strength jumps between 0 and 31 dbuv every few seconds ,with quality 0%
itv3 strength is 40dbuv, quality is 100%
bbc strength is 51, quality 100%
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tim's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
J
jb388:01 PM
tim : I suspected that might be the case, and the reason why I had mentioned that its doubtful if a new aerial would make any difference to your particular problem, basically because that any measures taken to improve reception such as the fitting of a more suitable aerial is dependant upon a low strength, but stable signal being there in the first place, and in your case with it not being as far as Ch39 is concerned.
However in cases where one mux channel is erratic its sometimes found that a dramatic increase on strength / quality can be had by moving the aerial slightly to the left or right of its present position, but though its essential that first of all local enquiries are made with neighbours etc to find out if the signal is actually receivable in the first place (mux Ch39 best referred to as (15. Film 4) or (24. ITV4) as in many cases its not due to variety of reasons, but if it is received by others then that indicates that the aerial experiment referred to might bring results, although obviously it wouldn't if neighbours cannot receive it either.
That said though, nothing can be discounted where RF signals are concerned, and the problem on Ch39 could simply be caused by that mentioned in my original reply, i.e: that of a faulty connection on the aerial, but other factors can also be responsible such partial signal path blocking caused by trees, as the blockage they cause to an RF signal can affect some mux channels much more than others dependant on the density of the foliage.
Anyway, I suggest that your priority should really be to find out if others nearby can receive the signal and take it from there.
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jb388:39 PM
Peter Kaye: Although the station referred to cannot be completely taken out of the equation as far as your problem is concerned, I very much doubt if its connected in any way to it as the towers seen at the station are used for beaming microwave links seawards, and these would have no effect whatsoever to the UHF frequencies used by Freeview.
As this is problem is known to happen about the same time each day it would be best if you could check with others to determine if they are also being affected, as they may or may not be, and if not then it has to something very local to your own property either by interference being radiated or alternatively injected via the mains supply.
A good way to verify which is to use a small portable radio with an LW (preferable) or MW waveband, and if LW tune it to the side of but not actually on radio 4 and turn up the volume, this followed by placing it near to any mains cables in plastic trunking or just close to a power outlet shortly before the time that this problem is known to occur, because if the interference is injected into the mains then you will hear a loud purr or crackle through the portable.
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jb388:50 PM
Peter Kaye: In addition to that said, if the interference is being radiated from some unknown source then use a portable VHF/FM radio with its telescopic aerial fully extended, then as done with the LW radio tune it to a blank space in the band and turn up its volume, because any interference of a non specific frequency being radiated will be heard as a high pitched raspy type noise.
By the way, with this test its not really necessary to place the radio near to a power socket.
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Monday, 20 May 2013
D
David A8:33 AM
We tune to Tacolneston Transmitter (not Aldeburgh). Over the period Saturday 18 May to Monday 20 May 2013 (and even this morning) we have had regular breakdowns in transmission and loss of picture and sound on signal for BBC1, BBC2, BBC3, and BBC4 all on channel 55. Prior to this there were no serious problems of this nature. Nothing obvious has changed in the house or nearby area and the problem is found on different TVs in our house. We have gone through the Freeview reset procedure and checked for Freeview intermittent interference as you suggest.
We live in the Southwold and Reydon area.
1. Is this problem unique to our local geographical area or has this problem been noticed across Norfolk & Suffolk.
2. Have you any explanation as to what the problem might be?
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Wednesday, 22 May 2013
K
Kelvin Wilson7:46 PM
Since the retune , I have been unable to receive any tv stations broadcast on C39 via my loft aerial . I have tuned these stations in using an amplified indoor aerial , but still get nothing from the loft aerial .
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Kelvin Wilson: If the loft aerial is a Group C/D one - with a green tip - then it might require replacement:
Aerials, TV Aerial and Digital Aerial
Or perhaps it is in a dead spot for C39 and requires moving.
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