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 04/11/2024 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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Monday, 3 October 2011
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Mike Dimmick12:19 PM
Mark Heselden: The boundaries between this site's predicted 'best' area for one transmitter and another are fairly arbitrary and probably wrong - like most of the predictions, because far too much of the information is kept private by the broadcasters/transmitter owner.
In this case, it's because the coverage area is divided - by the tool that generated the map - between Crystal Palace and Croydon. Croydon only normally transmits Channel 5, although in a dire emergency it can transmit the main four analogue channels (Crystal Palace's own reserve antenna and transmitters would have to fail first). So this line is completely erroneous.
There's an analogue coverage area map dating from the 1980s at mb21 - Transmitter Information - Crystal Palace - this was measured, rather than predicted. Post-DSO digital TV coverage should be substantially similar.
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Clive Jenner3:21 PM
Hi I have a Humax PVR9200T on the Crystal Palace mast. For the last week or two I have had a nag message advising of the need to retune when first switching on the PVR from standby each morning. Having taken advice from Humax I have done a retune automatically and also manually using the Crystal Palace channels. Humax are at a loss as they cannot understand why I still get the retune nag message! Any one on here suffering the same problem? Regards Clive
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Bob Smith4:33 PM
Matt,
Ref. my earlier post today...
The 800 series channels on my "London" TV had been removed by 13.00 together with 301 "Red Button" - the latter I added manually.
Bob
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Mark Heselden7:23 PM
Mike Dimmick: Very good map. Thanks, Mike. (51.14,-000.04)
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Matt7:32 PM
Bob: You either have to buy channel filters to only allow one transmitter through. A - E Masthead Combiner / Diplexer is one. For sudbury only, put the cable into the E socket and the output wire into the com. For crystal palace only, you should plug the aerial into the A section.
Or- build a stacked array to phase cancel the other signals. Personally, I think option 1 will be easier.
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Mary9:14 PM
London
I've just moved to a maisonette that has a new wideband aerial on the roof. Neither my freeview TV or Humax digital box can pick up multiplex 2. I used to live next door so know the area (and my TV/digital box) is capable of getting a signal.
I've tried a new cable, reinstalling factory settings, turning the booster off, turning the booster on, but still no multiplex 2.
Any ideas what could be causing the problem?
Many thanks
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Mary's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 4 October 2011
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Matt7:10 AM
If it's a communal system, there cold be a filter to prevent 22 getting through.
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Mike Dimmick3:23 PM
Clive Jenner: I got that when Hemel Hempstead retuned a few weeks ago (14 September). HH simply retransmits what Crystal Palace transmits, so a change in the frequency information for HH had to actually be transmitted by CP.
I also have a PVR-9200T, but it hasn't prompted again since. Are you up to date? If you press MENU and go to System, Status, the versions should be:
System ID: 3020.0000
Application Version: PGXTF 1.00.23
Loader Version: A4.09
Update Date: 20th May 2010
If the versions are older than that, the current version is currently being rebroadcast. In the Software Update menu, make sure that it is set to automatically update at 4am. Make sure you put the receiver in standby before you go to bed, it will not update unless it is in standby.
That said, I think the change notification was only added in the that version.
As I recall, there are three options, Now, Later and something else. I pressed whatever would cause it not to retune at all, and never ask again (i.e. the third option).
Humax do recommend doing a Default Setting after installing that update. You might try doing one anyway. That will delete the future recording schedule and all channels, and all other settings - previous recordings are kept. I'd particularly advise moving the RF output away from its default as it clashes with analogue Channel 5 - I've set mine to UHF 53.
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Mike Dimmick3:39 PM
Mary: At that location, chances are extremely good that you have too much signal even without a booster. If you were much further away, I would say that maybe the reflector is too short, but you should be able to use an indoor aerial at that location (or no aerial at all) and still have excellent results.
A wideband is completely unnecessary at Crystal Palace and it's unlikely that it ever will become necessary.
Remove the booster completely, it won't be doing anything useful and could be harming the signal quality.
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Clive Jenner5:44 PM
Thanks for the reply from Mike Dimmick.
I have the software you mentioned added when first broadcast and I had already carried out the suggestions you made. The RF modulator lord knows what channel it's on but it's been there for along time without causing a problem. I will investigate shifting it though! This is a system that has been working fine for some time. I suspect that the engineering work that is going on at CP is to blame. My concern is that this will go on till April next year when they say they will up the Transmit power!
Thanks Clive
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