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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 04/03/2024 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),

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 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 H max
C22 (482.0MHz)321mDTG-8200,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

COM6
ArqB
 H max
C28- (529.8MHz)321mDTG-8200,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 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, 21 June 2012
J
jb38
sentiment_very_satisfiedPlatinum

9:44 PM

martyh: On the angle of energy efficiency, between LED and cold cathode illumination, there is very little in it unless a person is seeking to splits hairs, as you can have two LED illumination LCD type flat screen TV's of the same screen size and both will consume different levels of power, let alone any difference between LED and CC.

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jb38's 7,179 posts GB flag
Friday, 22 June 2012
N
Nigel
8:15 AM

Crystal Palace transmitter: no signal at all on C30 (HD channels). Tried returning yesterday and today's even adjusted the aeriel, but still no signal at all.
No mention anywhere that the Mux is down!

link to this comment
Nigel's 1 post GB flag
F
FJC Farrar
sentiment_satisfiedBronze

2:58 PM

jb38. The energy efficiency of comparable LED lit screens is very susbstantially better than with CC illumination. When they first appeared, the quoted reliability was however worse, but has exceeded it now. However, the technology is as yet not as well refined and the LED backlight/LCD picture-element types often suffer with difficulty in achieving a true reference white colour - perhaps because LED doping/filtering technology has not has had as long as the phosphors in CC illuminators to mature. The net result is that whites on LED sets often look a slightly blueish "Persil White" rather than the correct fresh milk colour.
Most flat screen TVs are supplied with default settings which do them no favours - usually giving pictures on the gaudy side that look good in the shop. They also have a multiplicity of user settings and optimising adjustements that most users do not understand and are not competent to use. My own LG stores 161 individual picture settings for each input and within that for each resolution of signal source and then automatically applies them as appropriate. However it looked dreadful on the factory settings and this capability was miserably described in the user documentation such that few without some technical expertise and knowledge of video parameters could have successfully set the thing up to do its best. The average user has to rely on an "idiot-guide/procedure" which will achieve just passable results & is unlikely to realise that he can separately optimise it for SD, HD, DVD & BluRay etc.
Most CRT TVs were just internally set up to do the best they could with the TV signal and applied this to everything with results that often looked better - or more correctly, nicer.

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FJC Farrar's 25 posts GB flag
Sunday, 24 June 2012
M
martyh
sentiment_satisfiedBronze

1:43 PM

Thanks jb38,FJC. I concur with everything you've said. Let's hope, that in the coming years these issues will be resolved, so jo average can get great pictures without having to fiddle around too much, or be bombarded with a plethora of settings, which most people don't know how to use let alone understand!

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martyh's 25 posts GB flag
Tuesday, 26 June 2012
T
Terry J Russell
7:34 PM

weare getting problems intemitantly and
Weak or no signal keeps coming. This has been happening for the las week or so and sometimes last at least 30 minutes. We had this trouble costantly before thedigital signal was switched on and we were always told it would all be ok when analogue was switched on.
can nothing be got right in this country

link to this comment
Terry J Russell's 1 post GB flag
M
Mark Fletcher
sentiment_satisfiedGold

7:46 PM
Lytham St. Annes

Terry J Russell.Unless you leave a full postcode or nearby location as such,we cannot be of much help to you.

link to this comment
Mark Fletcher's 673 posts GB flag
Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Wednesday, 27 June 2012
P
Paul
1:28 PM

@ Colin Newman, posted 18.04.12

Re: Goodmans GDB5

I had the same problem.

I went to Signal Strength. Then using the right & left arrow keys you can toggle through the channels until you get to 28.

I left it on channel 28 for a few minutes and eventually the strength bar went green and to 100%.

I then performed a channel scan and all the channels were found.

Hope you have the same luck,

Paul.

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Paul's 1 post GB flag
L
Luke Bellamy
9:04 PM
Ware

Hi, seem to be suffering a similar problem to that descibed by Terry J Russell. I'm at SG12 0XY and my freeview HD signal (CH30, 545.841 MHz) keeps dropping, causing no signal to be displayed on my TV. This happens on a Sony 32EX403, I can watch the signal quality bar drop from 100% to 0, bounce around 30 and then back to 100% when the picture comes back. The strength sits at 100% all the time. I have no issues with SD reception.

I also have Freeview HD PVR, which does not seem to be as sensitive, but I do get some breakup. Not sure if this is interference, or the TC itself.

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Luke Bellamy's 1 post US flag
Luke's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage
Thursday, 28 June 2012
M
Mark Fletcher
sentiment_satisfiedGold

2:26 PM
Lytham St. Annes

Luke Bellamy.Ware,SG12 0XY.
Your second and last paragraph at least could be down to atmospherics/inversion effect due to the recent brief settled spell due to end very soon.
As for your first paragraph if you do receive transmissions directly from Crystal Palace itself is your aerial horizontally polarised and if so is it a group A type Yagi or group A type X-Beam aerial as such (red coloured tips).One possibility could be that BBCB (HD) multiplex generally are more prone to picture pixellations,break ups and No Signal mode than the present five remaining SD multiplexes.

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Mark Fletcher's 673 posts GB flag
Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Friday, 29 June 2012
R
Richard
10:55 PM

This evening (29 June) after about 22.30 the signal strength on Ch 25 (10 ITV 3, 27 ITV 2 +1, 30 5*, 31 5USA, 38 Quest, 39 The Zone, 44 Channel 5 +1, 72 CITV, 16 QVC, 23 Bid TV, 60) declined and the picture became unuseable. Crystal Palace report "no problems". Is this interference from an outside source on just one channel or something else?

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Richard's 5 posts GB flag
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