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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Tuesday, 16 July 2013
J
jb389:19 AM
Rob: Well as far as replacement aerials are concerned, I would suggest that either a Blake DMX10A or alternatively a Triax Unix 52 group "A" aerial should prove as being satisfactory for your requirements.
That said, I have to admit that I am always slightly hesitant about recommending high gain aerials for use in reasonably distant non line-of-sight situations (such as applies in your case) for the simple reason that these type of aerials are "only" high gain when precisely aligned on the signal source, this being something which cannot really be guaranteed to last in non line-of-sight situations and where the signal being received from Crystal Palace is only being done so through diffraction (signal bending), this being due to the signal path from CP being affected from approx 20 miles prior to your location and completely obstructed from 5 miles, as seen illustrated on the undermentioned link.
In any non line-of-sight situation and especially so at longer distances, the angle that the signal is being received at can change slightly over the year through a variety of reasons including the atmospheric conditions prevailing at the time, but also to a greater extent through changes to the surface of the terrain, e.g: wet /dry, vegetation, man made structures etc, all of having an effect on the reflective properties of the ground.
When taking my previous statement into account with regards to high gain aerials, anything that causes a slight change in the signal angle reaching the aerials directors, the sole purpose of being to focus the signal onto the aerials "active" element, can result in these hitherto focussing elements partially restricting the signal, this being why that if an aerial that was installed early on the year is alignment checked late autumn its frequently found to require slight trimming.
Needless to say that this sort of thing is generally responsible for people with high gain aerials suffering from higher levels of picture glitching under adverse conditions over those who use lower gain aerials in conjunction with a booster, lower gain aerials having a wider acceptance angle thereby not being quite so critical where angle is concerned.
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
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R
Rob1:27 PM
Reading
Hi Jb38 My area is very difficult area for tv reception as i live down the valley very close to river thames and behind my house there is a rail way line viaduct. I will go for Blake DMX10A... my old aerial is pretty rusted away thats why i want to change it.
Now a tip. if you suddenly get noisy pix elation picture... check your loft booster mine went today was red hot...... took it out put new one in got really good reception from Oxford.... Jb38... can i combine the two aerials together so i can get bbc south and london?
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Rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Wednesday, 17 July 2013
J
jb388:26 AM
Rob: With regards to boosters fitted in lofts, the transformers used in these devices are fitted with a thermal fuse (non resetting type) strapped to the windings just under the protective covering, and any time these devices fail its nearly because this fuse has tripped through excessive heat.
On the subject of combining aerials, yes you can combine any station provided that its mux channels are all within the same group, but are you sure that you are picking up Oxford? as this is not indicated as being possible to receive at your location, Hannington is though and it transmits BBC South, you should carry out a signal check on the BBC channel in question and note the mux channel being indicated, Oxford is Ch53 (ITV Ch60) and with Hannington's BBC being on Ch45 (ITV Ch42).
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Friday, 26 July 2013
A
Anita5:17 PM
Dartford
My freeview is giving me aggro, after moving from E6 3QY to DA1 2LP my previously reliable equipment has gone nuts, for example despite receiving 90 to 100 signal and quality from Crystal Palace the picture consistently breaks up, I found by manual tuning non Crystal palace numbers I can get it to work fine, however when it does its obligatory scan it says "new channels have been added" it then adds dozens more channels to the 800's and re tunes itself back to to crystal place and i have to manual tune AGAIN. it also regresses back to crystal place when it reckons the just added channels need removing because they are no longer transmitting and so it goes on. Is there a resolution for this frustrating behavior. i dont care what tv area i view, or is it just time to give up and look for a new box or tv.
I updated the firmware via the usb port but still crystal place breaks up and still cannot disable scan.
thanks for looking Anita
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Anita's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
J
jb386:05 PM
Anita: Should the aerial system installed at your new address use a booster then try by passing it, as what you have said could be an indication that your TV's or boxes tuner is reacting to receiving an over powerful signal and this possibility has to be eliminated before anything else is suggested.
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J
jb386:40 PM
Anita: In addition to that said, its also possible that your reception is being affected by the numerous trees that would appear to be located directly in line with the signal path, therefore it would be advisable to make a couple of enquiries with neighbours to determine if they are also experiencing similar difficulties to yourself.
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A
Anita7:37 PM
jb38: Thanks for the suggestion. I will ask the neighbors this weekend and I presume the thing in the loft with the red light and the aerial type wires coming out of it is the booster. I will look into disabling that when I can borrow the ladder again.
Currently out of the four previously functioning pieces of equipment I have only a Pace HD box that works reliably and only if I select south east, this box doesn't seem to rescan back to crystal palace.
Thanks for looking Anita
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J
jb388:17 PM
Anita: Yes, its best that you make some local enquiries before doing anything "including" the booster bypass test, as its essential to have an idea of what to expect as far as reliability of reception is concerned as it saves you needlessly making checks that wont really prove anything.
The only reason I suggested the possibility of signal overloading is because of you having said that non Crystal Palace channel numbers work better, all of being received at a lower level, but having subsequently carried out a visual check of your locality signals other than from Crystal Palace might only be better simply because they are not being received via the trees referred to.
It would also assist if you could indicate the model number of your main TV or box being used, this to possibly enable its menu system to be checked out for the purpose of finding out if auto-channel update can be disabled thereby stopping it picking up channels from elsewhere, which according to the reception possibilities seen it can do.
By the way the box with the red light in the loft is most likely to be the booster/distribution amplifier.
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A
Anita9:55 PM
jb38: Thanks for your time and suggestions Out at the moment cant remember main tv will post tomorrow, however I remember my daughters boxes they use in their bedrooms Sharp TU T2 which they use in conjunction with a old style tv and a flatscreen with a broken aerial socket (Bedrooms are the places where old tvs go to die LOL!) All you can do is choose between being notified or not.
Thanks for looking
Anita
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Saturday, 27 July 2013
A
Anita12:41 AM
To give the Sharp tut2 a little credit if you manual tune 40 you will ALWAYS have south tv BBC1 However if u Manual tune (i think)pick tv 39 (Strength 70) (Quality 80)u get perfect picture but without fail it ALWAYS reverts back to 22(Strength 80) (Quality changes over a few secs 100 90 zero) = no picture
This never happened at previous address
Thanks for looking
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