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Full Freeview on the Crystal Palace (Greater London, England) transmitter

first published this on - UK Free TV
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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 Digital tick


Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C23 (490.0MHz)324mDTG-200,000W
Channel icons
1 BBC One (SD) London, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 16 others

PSB2
D3+4
 H max
C26 (514.0MHz)324mDTG-200,000W
Channel icons
3 ITV 1 (SD) (London), 4 Channel 4 (SD) London ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 London ads, 18 More4, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (London), 71 That’s 60s,

PSB3
BBCB
 H max
C30- (545.8MHz)324mDTG-200,000W
Channel icons
46 5SELECT, 101 BBC One HD London, 102 BBC Two HD England, 103 ITV 1 HD (ITV London), 104 Channel 4 HD London ads, 105 Channel 5 HD, 106 BBC Four HD, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H max
C25 (506.0MHz)314mDTG-8200,000W
Channel icons
20 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 251 Al Jazeera English, 255 FRANCE 24 (in English), 265 Rok Sky +1, plus 29 others

COM5
ArqA
 H max
C22 (482.0MHz)321mDTG-8200,000W
Channel icons
11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 76 That's TV 2 MCR, 233 Sky News, plus 13 others

COM6
ArqB
 H max
C28- (529.8MHz)321mDTG-8200,000W
Channel icons
12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 63 GREAT! romance mix, 73 HobbyMaker, 75 That's 90s, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

LW
 H -10dB
C35 (586.0MHz)324mDTG-1220,000W
Channel icons
from 31st March 2014: 8 LONDON LIVE,

DTG-8 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?

regional news image
BBC London 4.9m homes 18.4%
from London W1A 1AA, 12km north-northwest (335°)
to BBC London region - 55 masts.
regional news image
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 AthleticTransposerRedeveloped north stand Charlton Athletic Football Club130 homes
DeptfordTransposersouth-east London100 homes
GreenfordTransposer12 km N Heathrow Airport203 homes
HendonTransposerGraham Park estate50 homes
White CityTransposer9 km W central London80 homes

How will the Crystal Palace (Greater London, England) transmission frequencies change over time?

1950s-80s1984-971997-981998-20122012-1321 Mar 2018
VHFA K TA K TA K TA K TW T
C1BBCtvwaves
C22ArqAArqA
C23ITVwavesITVwavesITVwavesBBCABBCA
C25SDNSDN
C26BBC1wavesBBC1wavesBBC1wavesD3+4D3+4
C28-ArqBArqB
C29LW
C30C4wavesC4wavesC4waves-BBCBBBCB
C33BBC2wavesBBC2wavesBBC2wavescom7
C35com8
C55tv_offcom7tv_off
C56tv_offCOM8tv_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

Which companies have run the Channel 3 services in the Crystal Palace transmitter area

Sep 1955-Jul 1968Associated-Rediffusion†
Sep 1955-Jul 1968Associated TeleVision◊
Jul 1968-Dec 1992Thames†
Jul 1968-Feb 2004London Weekend Television♦
Jan 1993-Feb 2004Carlton†
Feb 2004-Dec 2014ITV plc♦
Feb 2004-Dec 2014ITV plc†
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Crystal Palace was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

Comments
Thursday, 3 May 2018
R
Roger Scott
5:21 PM

Hooray Hooray... I can also confirm that I can at last now get com 7 (channel 55) . Why did it take so long to sort it? As I could already get com 8 (channel 56) but not com 7 I knew that the problem couldn't be " down my end".
I can receive both Crystal Palace and Hannington at my location and the signals before the frequency changes were about the same from both transmitters. After CP channel changes I had to replace my existing A group aerial for a log periodic which then allowed me to receive London Live again.
I have noticed that the signals that I am getting on com 7 and com 8 are coming from the Hannington transmitter so I assume that neighbours that only have an aerial pointing to Crystal Palace must still be having reception problems with coms 7 and 8 especially if they still have an A group aerial

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Roger Scott's 9 posts GB flag
Friday, 4 May 2018
C
Chris Roberts
8:27 AM

"That's Surrey" - We can get That's Surrey but it is very weak - it is Programme 7 using Channel 33. Which transmitter is transmitting Channel 33? We are in Guildford.

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Chris Roberts's 14 posts GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

10:24 AM

Chris Roberts: That's Surrey is broadcast from the Guildford transmitter only.

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StevensOnln1's 3,670 posts GB flag
Sunday, 6 May 2018
C
Chris Roberts
9:13 AM

StevensOnln1's. Thank you for your response. The reason I asked is that I could not believe why the signal strength of "That's Surrey" was so very very weak being transmitted from Guildford. We are only about 5 miles from the transmitter. Our main HD TV (although tuned to Crystal Palace) receives Guildford transmissions well - we can only get "That's Surrey" by going through our recorder as that seems to act as a form of amplification. Our other non HD TV is tuned to Guildford via a loft aerial with amplifier - receiving good Guildford signals BUT NONE from "That's Surrey". WHY ARE THEY TRANSMITTING SUCH A LOWPOWER SIGNAL?

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Chris Roberts's 14 posts GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

10:29 PM

Chris Roberts: The local mux uses QPSK modulation which is more robust than the modulation used by the main multiplexes, thus requiring a lower power level to provide coverage equivalent to the main muxes. Some of the local muxes are also restricted in power output and direction in order to prevent interference with other transmitters using the same frequency (the local muxes are often broadcast on frequencies which are only clear for use in their primary target coverage area and not necessarily the entire area covered by the main muxes from the same transmitter). If you provide a full postcode we will be able to see the predicted coverage for your location which will show whether you are predicted to have good reception of the Guildford local mux.

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StevensOnln1's 3,670 posts GB flag
Monday, 7 May 2018
C
Chris Roberts
11:09 AM
Guildford

Hi StevensOnlin1's
Thanks for your interesting and technical reply. Our full post code is: GU1 2XH. Since I emailed you the recorder has retuned itself and deleted "That's Surrey" from its programme list - so I cannot get it on either TV. The HD one still shows it on its programme list but it only gets occasional pictures. The lower tech non HD TV does not even recognise the programme - can a non HD TV receive the programme? Both TVs get "London Live" (Programme 8) - we can get LONDON BUT NOT SURREY!!. Not too worried but interested to know why.
Thanks - Chris.

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Chris Roberts's 14 posts GB flag
Chris's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
S
StevensOnln1
sentiment_very_satisfiedPlatinum

11:39 AM

Chris Roberts: The Digital UK checker shows that you should be able to get good reception of the Guildford local mux on UHF channel 33 (broadcast using DVB-T and receivable on any TV/box/PVR regardless of support for receiving HD channels). It sounds like your main aerial is pointed at Crystal Palace, but which transmitter is the loft aerial feeding your second TV pointed at? Crystal Palace is on a compass bearing of 56 degrees, with the aerial elements (little rods) horizontal (going side to side) whereas Guildford is on a bearing of 248 degrees witht the elements vertical (going up and down).

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StevensOnln1's 3,670 posts GB flag
C
Chris Roberts
1:30 PM

Thanks again - The second TV (Non HD) uses a loft aerial with amplifier - vertically polarised pointing to the Guildford transmitter. Yes the main TV is pointing at Crystal Palace BUT it receives Guildford very strongly - except Channel 33! As a matter of interest what Kw power is transmitted by Channel 33? Thanks Chris.

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Chris Roberts's 14 posts GB flag
Thursday, 10 May 2018
A
Allan Cousens
7:55 AM

This may help some people, if it works it's a cheap, simple solution and is certainly worth trying. I live in East London and have a fixed aerial in the loft that has worked well for years but will not receive channels 55 and 56 and is sometimes dubious about channel 35 containing London Live etc. from Crystal Palace. The other day I accidentally discovered that an old indoor TV aerial I had lying about can receive channels 55 and 56 and even channel 35 when the rooftop aerial is just showing blocks of colour. So in the 21st century I have reverted to that old staple of the 60s and 70s of wandering round the living room with an indoor aerial trying to find the best location for the signal. I was thinking of changing the fixed aerial in the loft but am not keen on this if the channels are anticipated to be changing again in a few years.

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Allan Cousens's 2 posts GB flag
S
StevensOnln1
sentiment_very_satisfiedPlatinum

10:45 AM

Allan Cousens: If you don't have satellite or cable you may be eligible to have your loft aerial replaced with a wideband type free of charge, which can be arranged by contacting the Freeview Advice Line (see link below). The only future planned changed which affect Crystal Palace are that COM7 & COM8 are expected to close by 2022, there have been no other frequency changes announced for Crystal Palace.

Important changes to Freeview TV signals | Freeview

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StevensOnln1's 3,670 posts GB flag
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