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 15/04/2024 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, 27 March 2012
J
jb389:34 PM
Tim: Yes, you are quite correct regarding the atmospheric conditions (high pressure) that is presently applying, and which is responsible for disrupting television reception across large areas in the UK, although apparently this high pressure "inversion" effect problem mainly affecting South of the border as there are at present anyway, very little complaints about reception difficulties being made from the Scottish regions.
I also agree that come April the 18th when Crystal Palace is fully switched over to high powered operation that most complaints of reception difficulties from that station will virtually vanish, that said though, I do fully expect that there is going to be quite a number of new complaints springing up due to signal overloading problems causing instability in TV and boxes tuners, the symptoms of being "exactly" the same as that of a weak signal, although a lot easier to cure by the addition of an attenuator in line with the receiving equipments aerial sockets.
Thank you also for your most complimentary comments regarding the site.
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Wednesday, 28 March 2012
P
Pedro dd9:08 PM
You have a very good prediction for crystal palace (london), so is you aerial in good condition and all the cables connected correctly? If so, it could be propagation wiping out the channels you mention.
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Friday, 30 March 2012
M
Matthew Hopkins12:43 PM
Is ArqB going to be (post-DSO) on C28 or C28- please ?
According to Ofcom, it's going to be C28-
http://stakeholders.ofcom….pdf
That document is dated 20 January 2012.
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Matthew Hopkins: Digital UK Tradeview predictor concurs that it will be 28-
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M
Mike Dimmick2:24 PM
Matthew Hopkins, Dave Lindsay: Chances are this is to ensure that the suggested local TV service on C29 has a full 8 MHz. It will probably actually be C29-. The issue is caused by BBC B having a negative offset - which is to stay out of the way of whatever service ultimately ends up bordering at 550 MHz (i.e. the bottom of C31).
Nearly all receivers will automatically detect and apply the offset even if manually tuned. There are a number of receivers, based on Vestel's T810 chassis, that can't handle negative offsets in 8K mode, if they haven't had an update. See Unofficial Vestel PVR Information (UK) - T810 Freeview Recorder for a list of known models.
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Sunday, 1 April 2012
G
Graham12:10 AM
Camberley
I've made this comment elsewhere, but it's probably worth repeating. I asked in a local TV dealer in Surrey if they were also experiencing poor digital reception at the moment. Their answer was "of course we are and we've been told by a rep that the reason is the Crystal Palace transmitter power output has been reduced whilst they are making modifications prior to DSO". I guess if you are working on an aerial with 20kW of RF, then so would you. We've had high pressure and inversions many times over the last 5 years but we have always maintained a good signal. Since early February, whilst they have been working on the transmitter, poor atmospherics have combined with lower signals, hence loss of reception on several multiplexes. Here's to the 4th April and 200kW.
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Graham's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
N
nicholas4:24 PM
Authoritative sources on WWW appear to indicate the forced switch-off of analogue and consequent hassle and expense for people re digital was caused by an oversight of the government project team in allocating bandwidth and frequencies for the olympics and so forth to overseas media and security purposes. The trusty old analogue gets given to them and the fee paying public get aeroplane disturbance, high pressure "inversion" and a headache if someone uses DIY tools between the transmitter and aerial.
Then of course you could catch analogue virtually anywhere but digital needs a full on unfettered path or it's patchwork city on the tv screen.
Then there was a paper written by the scottish parliament outlining how lucrative digital would be for politics and councils.
I do hope the powers that be will solve all the issues so everyone will be able to enjoy the tv/radio as enjoyed during the rusty old but fully working analogue days.
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T
tony8:32 PM
Harlow
hi...i run my freeview thru a humax 9200t box and have lost count of how many times i have had to retune in last 2 weeks..itv ,channel 4,channel 5 were impossible to get here (harlow) lets hope after the 18th of april it gets better,my rx20 aerial is pointing to crystal palace but i think sandy heath may have been a better option...Here in harlow the crap virgin media are only giving the 5 usual channels thru their pipelines to homes...how do they get away with it!! they should be FORCED by government to give all freeview channels,They took over from NTL ..WHAT a shambles..i blame the councils for letting these companies do what they want
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tony's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
Monday, 2 April 2012
O
optimist2:35 PM
Stansted
Attenuator.
Currently have masthead amp.
Assuming after 18th, too much signal, which make attenuator would be best suited for use at at the digibox input end. Don't want to mess around with aerial end if possible. Or if I cut off the power to the mast head amp, will the signal "pass though" un-amplified so that an attenuator would not be necessary?
Tks
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optimist's: mapO's Freeview map terrainO's terrain plot wavesO's frequency data O's Freeview Detailed Coverage
J
jb383:37 PM
optimist: As far as your mast head amplifier is concerned, if you cut off its power supply then its not the case that the signal will pass through unamplified but will actually be attenuated to less than it would be straight from the aerial, something which could possibly work to your advantage after April 18th provided that the signal received is strong enough.
My reason for saying that is that you would appear to be located in a less than ideal area for reception, as even after CP's switch to high power the predictions seen aren't exactly brilliant, and I also notice that Sandy which is 10 miles closer than CP doesn't provide good reception across all six muxes at the same time on any occasion, Sudbury having a permanent "variable" reception status across all muxes.
Its really one of these cases of wait and see, as CP might not have quite the effect
that its increase in power would suggest.
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