Full Freeview on the Crystal Palace (Greater London, England) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 51.424,-0.076 or 51°25'26"N 0°4'32"W |  | SE19 1UE |
The symbol shows the location of the Crystal Palace (Greater London, England) transmitter which serves 4,490,000 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.
Are there any planned engineering works or unexpected transmitter faults on the Crystal Palace (Greater London, England) mast?
Crystal Palace transmitter - Crystal Palace transmitter: Possible effect on TV reception week commencing 11/11/2024 Pixelation or flickering on some or all channels 
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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
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
Which Freeview channels does the Crystal Palace 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 Crystal Palace transmitter?
BBC London 4.9m homes 18.4%
from London W1A 1AA, 12km north-northwest (335°)
to BBC London region - 55 masts.
ITV London News 4.9m homes 18.4%
from London WC1X 8XZ, 11km north-northwest (345°)
to ITV London region - 55 masts.
Are there any self-help relays?
| Charlton Athletic | Transposer | Redeveloped north stand Charlton Athletic Football Club | 130 homes |
| Deptford | Transposer | south-east London | 100 homes |
| Greenford | Transposer | 12 km N Heathrow Airport | 203 homes |
| Hendon | Transposer | Graham Park estate | 50 homes |
| White City | Transposer | 9 km W central London | 80 homes |
How will the Crystal Palace (Greater London, England) transmission frequencies change over time?
| 1950s-80s | 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 21 Mar 2018 | ||||
| VHF | A K T | A K T | A K T | A K T | W T | ||||
| C1 | BBCtvwaves | ||||||||
| C22 | ArqA | ArqA | |||||||
| C23 | ITVwaves | ITVwaves | ITVwaves | BBCA | BBCA | ||||
| C25 | SDN | SDN | |||||||
| C26 | BBC1waves | BBC1waves | BBC1waves | D3+4 | D3+4 | ||||
| C28 | -ArqB | ArqB | |||||||
| C29 | LW | ||||||||
| C30 | C4waves | C4waves | C4waves | -BBCB | BBCB | ||||
| C33 | BBC2waves | BBC2waves | BBC2waves | com7 | |||||
| C35 | com8 | ||||||||
| C55tv_off | com7tv_off | ||||||||
| C56tv_off | 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 4 Apr 12 and 18 Apr 12.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-4 | 1000kW | |
| SDN, ARQA, ARQB, BBCA, D3+4, BBCB | (-7dB) 200kW | |
| com7 | (-13.7dB) 43.1kW | |
| com8 | (-14dB) 39.8kW | |
| Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D*, LW | (-17dB) 20kW |
Local transmitter maps
Crystal Palace Freeview Crystal Palace DAB Crystal Palace AM/FM Crystal Palace TV region BBC London LondonWhich companies have run the Channel 3 services in the Crystal Palace transmitter area
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Thursday, 19 April 2012
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jb388:44 AM
Paul: I had a check at the manual for your TV and you are quite correct insomuch that it does have a DVB-T2 tuner installed.
However now thats been confirmed then the other possibility exists and is something I have mentioned to quite a few others with similar problems, that of your HD signal being excessively high and is overloading the tuner, as a overly strong signal will usually affect HD channels before SD, and even although you will see a weaker signal being indicated its something thats frequently seen in these type of situations, as the excessive level of signal corrupts the measuring circuitry as well as blocking the actual reception.
A simple test is to try using a set top aerial should you have access to one, or even a short piece of wire (about 12") plugged into the inner part of the aerial socket, re-tuning after having connected either set top or wire.
I would have had a better idea of exactly what signal you are liable to be receiving if you had provided your post code, or one from a shop etc very near by.
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morningster8:45 AM
JB38: if by booster, you mean signal amplification within the home, I haven't got any.
What am I testing for using the method you suggest? Also, what type of wire is adequate for this (how about an unbent wire hanger)?
Thanks for your help.
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Paul8:49 AM
J38
My postcode range is WD17.
Thanks for your help with this.
Paul
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jb389:32 AM
Paul: Quite a few variations can be found under that code area but Hemel Hempstead is indicated at only 4 miles away and Crystal Palace at 22 miles so you could be receiving from either station.
The best way to assess the situation is if you are receiving normal BBC and ITV OK then you should also be on the HD channels unless what I mentioned is applying.
Do you actually know where you are receiving your signal from? if you can see the aerial and its mounted with the elements up and down then its Hemel Hempstead, but if horizontal its Crystal Palace, if you cannot see the aerial then what channel number do you see indicated if carrying out a BBC1 signal test? Hemel is Ch44 with its HD channel on Ch47, Crystal Palace Ch23 with its HD channel being Ch30, I mention this in case you are not picking up the corct match.
By the way, any copper wire like a strand of lighting flex or even your wire hanger idea, although I dont generally advocate that in case it forces the inner part of the aerial socket open too much.
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J
John9:39 AM
I live in the London Area and have done a retune. Problem is the ITV 1 Channel keeps retuning to Anglia TV at Sandy Heath.
I dont want the local news from East Anglia.
Please help!
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D
David How9:55 AM
I left re-tunning my Samsung LE32R41BD television until today, Thursday 19th so that the Crystal Palace could be stable? (The television is an early HD ready television, which I believe does not include an HD Freeview receiver).
In Dulwich I am on the edge of a lower signal area close to the Crystal Palace. Auto re--tuning has always been problematic with this television. I have had to rely on manually re-tuning each multiplex channel (Ch22) to obtain the media channels (BBC1, BBC2 etc).
I have been manually re-tuning for the last hour. Some multiplex channels have had to be rescanned manually many times to identify the media channels. Detected media channels (BBC1, BBC2 etc) have Mux Signal strength of 70 to 80, (this is an increase in signal strength) all with Zero bit error rates. Ch26 D3+4 was the most difficult to scan and decode the media channels.
My findings, which may indicate an aerial group problem are:
MuxCh Detected No. Media Channels
22 Present 21
23 Present 22
24 Not Detected
25 Present 30
26 Present 10
27 Not Detected
28 Present 31
29 Not Detected
30 Not Detected
31 Not Detected
32 Not Detected
33 Not Detected
34 Not Detected
35 Not Detected
36 Not Detected
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K
Kevin Hodges11:07 AM
Chelmsford
I live in the Chelmsofrd area and use Sudbury (Anglia) for my signal, however both my mother-in-law (who also lives in Chelmsford) and mother (Billericay) both use Crystal Palace. Both areas are on the 'outer edges' of the transmitter. I have now re-tuned all their sets and PVRs. In all cases I recieved all muxes with good/very good signal strengths being reported. This leads me to conclude that many of the problems being reported here do relate to excess signal and it is well worth experimenting with the suggestions outlined above
Good luck
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Kevin's: mapK's Freeview map terrainK's terrain plot wavesK's frequency data K's Freeview Detailed Coverage
M
Mike Dimmick12:34 PM
David How: The number of channels shown there seem about right. DMOL Post-DSO Multiplex Channel Allocations lists which 'media channels' are on which multiplex, and the table above ('After Wednesday 18 April 2012') lists which multiplex is on which UHF channel.
For perverse reasons of his own, Briantist, who runs this website, has decided to list possible future extensions - local TV and new commercial multiplexes - along with the services that are currently running. On a TV that doesn't support Freeview HD, you will only expect to find services on BBC A, D3&4, SDN, ArqA and ArqB at present. BBC B will only show up on Freeview HD equipment.
Given the high signal strength you're reporting, the tuning difficulty could be to down to having too much signal. If you have an amplifier or booster, try removing it or turning it down. If not, consider adding an attenuator.
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Mike Dimmick12:49 PM
John: Your box is probably one of the stupid ones that stores the first version of a channel that it finds, rather than the best quality one. See Digital Region Overlap for suggestions.
Only D3&4 and BBC B are on lower frequencies at Sandy Heath than at Crystal Palace, and BBC B is only visible to Freeview HD equipment.
Do check whether the TV or box has an auto-retune function. If it does, check the manual to see how to turn this feature off.
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T
Tim12:59 PM
Radlett
jb38/Paul. I live in WD7 a few miles from WD17 and the signal strength here is sufficient for me to use my pocket freeview tv with its built in rod aerial of about 10 cm, I have a feeling a few people in this area will be having problems with signal overloading judging by some aerial installations I've seen on roofs here, some of the aerials look like they would be suitable for receiving tv from Mars not a transmitter 20 odd miles away.
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Tim's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
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