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 18/11/2024 Screen may go black 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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Saturday, 28 July 2012
M
Mark Fletcher12:31 AM
Halifax
Terry Carter.Colchester,CO5 8BL.
Having checked with the BBC Reception Test via your postcode given,there are no problems with any of the possible transmissions in your locality.
I would look up inversion effect as a likely cause !
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Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
M
Mark Fletcher12:35 AM
Halifax
Terry Carter.Colchester.What i forgot to add are you receiving from Crystal Palace or either from Sudbury or Dover main transmitters ?
What local news bulletins do you normally receive on BBC1/ITV1 channels ?
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Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 31 July 2012
M
Michael12:03 AM
London
Michael: Awful again today. The recorder had decided Crystal Palace was too weak. Even after manually retuning everything in sight, the BBC channels (from Crystal Palace) are poor and Sky News isn't there at all this evening. The digital TV is fine so it must come down to the tuner of the recorder ...
... except this had been fine for some years before the digital switchover and for a couple of months afterwards.
Now, we were sold the digital switchover on the basis that the digital signal would be better once analog was out of the way. Quite clearly at the moment it is worse than pre-switchover. Yet this site says there are no problems (at least on BBC) at Crystal Palace. Have we all been sold a pup? If I have to replace equipment that worked perfectly well pre-changeover because someone somewhere decides to weaken the signal for a couple of weeks when they feel like it, who do I sue?
Well, OK, not sue perhaps (and I'm not going to panic buy) but someone must be responsible for this mess. Are they even aware there is a problem, and who do we contatc to complain about what to my mind is a breach of trust on the digital switchover?
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Michael's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
J
jb388:22 AM
Michael: Even although you have reported the digital TV (also Freeview?) as being fine this could simply be because of it having a more sensitive tuner coupled to it also having slightly better circuitry, (e.g: Panasonic TV's / Humax if a box) or alternatively that its aerial feed might be supplying it with a slightly higher level of signal, this totally dependant on whatever method you use feed the aerial into both devices and that both devices are definitely tuned to the same transmitter.
As far as Digital TV is concerned, its inevitable that if a TV system is changed from one like analogue than can produce a picture of sorts right down to an almost zero signal with one than "has" to have a certain level of signal before anything can be heard or seen, that the latter is bound not to cope with serious fluctuations in signal levels caused by seasonal atmospheric changes and such likes which can allow signals to be received from far off places that can clash with local transmissions, this being something that has always happened albeit that analogue can cope with this in a much better way.
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C
Chris12:11 PM
London
One last query, security is security but Olympic games would you know if there would be any external interference of any kind that would disrupt the freeview signal that would be attributed to extra pressure on let's say bandwith due to the Olympics. In other words would you be informed of any external factors that would block my London signal that is not entirely due to the transmitters.
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Chris's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Wednesday, 1 August 2012
M
Michael12:12 AM
London
Michael: Chris's point had also occurred to me. I know red button services have been amended but if the standard signal has been degraded, that's been kept quiet. I can't think of anything more likely to hack off Londoners than making it difficult for loads of us to view what our extra council tax is paying for (yes, I know general taxation funds a lot of it too).
Yes, the digital TV is Freeview too. I have moved that to the location of the HD recorder and it performs fine .. unless of course I feed it the signal from the HD recorder! Similarly, I moved our stone age Freeview box upstairs to the location of the digital TV. Didn't change its performance.
I think the difference has to be the quality of the tuner. The digital TV seems able to cope with lower signal quality and - perhaps just as importantly - substantial variation in signal quality that we are experiencing. Typically, the signal strength is solid at 70-75% but the quality is either down at 30-40% or constantly shifting sharply within the range 10 to 70%. The exception is when the box decides it fancies Heathfield or Bluebell Hill for BBC and/or ITV, when signal strength also drops to 40-50%.
One last point is that some of the similar complaints from people in other parts of London have come when our signal is OK.
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Michael's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Saturday, 4 August 2012
T
Thomas10:31 AM
Overnight we have lost all channels associated with multiplex A & D. I am at a complete loss for what to do as this a large chunk of Freeview now gone. Any advice greatly appreciated. We have until this happened always had great reception.
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M
Michael11:40 PM
London
Michael: We have usually ended up deleting all channels on our HDD recorder (by retuning with the aerial disconnected) and then manual tuning the five multiplexes we are supposed to get from Crystal Palace. This usually gets back the BBC and ITV muxes but does not improve the other three - however deleting everything first does semms to prevent channels being numbered 800+.
It looks as if the Crystal Palace signal is weak at 8am when our HDD recorder auto retunes, so you may have to pick your time.
Even so, tonight's Olympic joy was slightly diluted by watching pixellated atheletes, even on the BBC signal from Crystal Palace. I expect they will get well pixellated in the next few hours though...
A first yesterday was to find one of the muxes claiming to be 698KHz, which appears to be "Waltham" - is that Walthamstow North? Previous "wrong""ansmitters have been Bluebell Hill and Heathfield.
I want to know whom I should be complaining to. The whole thing seems to be secretive and accountable to nobody.
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Michael's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Wednesday, 8 August 2012
D
Dave Taylor1:19 PM
David Taylor:
Hi Guys,
When Freeview Digital was first started I
purchased a box but got "no signal" message
(see original posts)
After full switch over all worked ok, except I had to buy two new TV's.
My house is in a dead spot and analogue
reception was never very good.
Yesterday I turned on TV and we were back to
the state we were in before, with no signal
messages and frozen picture etc.
Nothing has changed with my aerial etc.
Have they reduced the signal strength?
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Dave Taylor: I have read back your postings.
I have observed that the White Oak Leisure Centre could be in the (or under the) signal path at 850m away (just over half a mile). I mention this because it appears to have a large metalic content.
This terrain plot shows that you could have line-of-sight, assuming no obstructions:
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
Perhaps the poor reception at your location is caused reflections that are acting to reduce the quality or signal strength.
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