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 25/11/2024 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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Saturday, 7 July 2018
MikeP
3:41 PM
3:41 PM
Martin R:
There is a very well known and documented atmospheric phenomenon often referred to as 'tropospheric lift' though there are other names used as well. This gives rise to signals travelling far farther than is usual, sometimes extending the range to more than 200 miles! It is a perfectly natural occurrance so nobody can prevent it. It affects UHF signals rather more than VHF or short/medium/long wave signals.
The effect on UHF signals is often frequency selective, so it may only affect a single multiplex at a time, but it is highly variable and hence rather unpredictable. Plus the area affected will differ across the country, partly depending on local weather conditions.
It tends not to affect satellite transmissions as they use much higher frequencies, usually in the 10-12 GHz range, and they are very much more directional, hence the need to use a dish with an LNB aimed at the satellite.
Note that Freeview is terrestrial TV nowadays there are no other terrestrial (ground based) TV transmissions in the UK. All other TV services are either via satellite or internet.
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Sunday, 8 July 2018
C
Colin R1:20 AM
Martin R:
Further to MikeP's reply, trophospheric lifts are not usually linked to air temperature. They tend to mostly occur when there is a slow decline in atmospheric pressure following a prolonged period (a few days or more) of high pressure. This can happen at any time of the year, but the probability of prolonged high pressure in the UK is higher in the summer, so there tend to be more 'lifts' in the warmer summer months.
If you have been suffering reception problems in the hot weather then it may well be due to a troposperic lift that has caused co-channel interference from other transmitters some way away. Transmitter frequencies are mostly selected to ensure that re-use of the same channels is by transmitters that are located sufficiently far apart that their coverage areas don't overlap. However, lift conditions can temporarily cause your aerial to receive a signal from more than one transmitter on the same channel, causing interference or loss of reception. One exception to this is the use of channels 55 and 56 for the Com7 and Com8 Muxes nationwide as part of the so-called 700MHz band clearance transmitter changes, which has for some caused co-channel interference even without troposperic lift conditions.
So if you are experiencing reception problems in the hot weather that you haven't experienced before then that old adage 'do not adjust your set' is appropriate, because it will most likely go away within a day or two.
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M
Martin R1:23 PM
Thanks guys. I have had occasional breakup on HD channels, but more importantly I have lost the Red Button service on BBC stations except radio. However that maybe down to my YouView box.
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Monday, 9 July 2018
D
Dominic Redgewell 5:59 PM
Dunstable
I cannot get the London channels at all. The aerial is on the roof. I live in Toddington LU5 6ER.
I can get the tv channels on the Sandy Heath transmitter. I have retuned the TV to get the London channels back, but no joy. Any help will be gratefully received. Thank you.
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Dominic's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
Tuesday, 10 July 2018
MikeP
3:30 PM
3:30 PM
Dominic Redgewell:
If you look at the predicted reception as shown on the Digital UK Coverage Checker, at Coverage Checker - Detailed View and on the blue box below your posting. It shows you should be getting pretty good reception from Sandy Heath but variable and even very poor reception from Crystal Palace.
If your aerial is aimed at Sandy Heath, it will not 'see' Crystal Palace at all well as it is in a completely different direction.
So your aerial will need to be adjusted to receive any decent signals from Crystal Palace, but even then reception of all bar the BBC A and D3&4 is expected to be acceptable but the reception of all other multiplexes multiplexes is expected to be poor and variable. So using Crystal Palace is not recommended.
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Thursday, 12 July 2018
A
A Farlow8:21 PM
London reception on all commercial channels is appalling. Picture breaks up or freezes. No recording possible, of course, and re-tuning makes no difference at all.
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Friday, 13 July 2018
S
StevensOnln112:54 PM
A Farlow: Have you checked for any loose or damaged cables or connections behind your TV? Please provide a full postcode so that we can see where you are in relation to the transmitter and your predicted coverage etc.
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Saturday, 14 July 2018
H
Hayley7:27 PM
Hi. Lost almost all channels. 're tuned and reset. Makes it worse. All tvs are showing break up in picture etc. 3 days now.. Any help please.
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Sunday, 15 July 2018
MikeP
4:00 PM
4:00 PM
Hayley:
The worst thing to do was a retune! It will never bring back the channels under the conditions you describe. You will now need to do a manual tune using the actual channel numbers being used by the transmitter. To find those, put your post code into the Digital UK Coverage Checker at Digital UK - Coverage checker Then use the channel number listed to retune your TV set to each of the multiplexes.
There can be a number of reason for the loss of signals, the main one at present being the warm weather. That causes inteference by signals fro other transmitters travelling further than usual, which the TV can't cope with and you loose the channels. The other posibility is a bad connection in your aerial feed. So check all the connections you can safely reach, starting at the back of the TV and working as far up to the aerial as you can get.
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Monday, 16 July 2018
D
Dominic Redgewell 6:36 PM
Ok, thanks. We have had on screen announcements to retune tomorrow, due to alterations to signalling. I will have to find out if I get the London channels back.
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