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

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.424,-0.076 or 51°25'26"N 0°4'32"Wsa_postcodeSE19 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 04/11/2024 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
Saturday, 20 August 2011
B
Brian King
10:31 PM
London

So, the Sony TV (latest model) is less sensitive than the tuner inside a Sony DVR from about 5 years ago? Seems odd. I'm sure the flyleads are good quality. I'm checking with the others in the house (we share an antenna)and there have been reports of poor reception lately, often ascribed to the weather.

Is it a definite, that the power will be increased when analogue is switched off?

Brian

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Brian King's 4 posts GB flag
Brian's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
Sunday, 21 August 2011
J
Joanna Tate
10:29 AM
London

My aerial is in the loft and I have noticed that over the past 3 Saturdays at about the same time 10.30-11.00pm there is severe pixelation on all channels. Re-tuning does not help. I am on the Crystal Palace transmitter and I see that they are doing engineering work but would this be done at the same time every week?

link to this comment
Joanna Tate's 1 post GB flag
Joanna's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
K
KMJ,Derby
sentiment_satisfiedGold

7:52 PM

Brian King: The power of each mux is raised to 200kW at DSO. At present the HD service is only 10kW and the other muxes are 20kW.

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KMJ,Derby's 1,811 posts GB flag
K
KMJ,Derby
sentiment_satisfiedGold

8:10 PM

Joanna Tate: It is likely that you are receiving interference from faulty equipment that is turned on at that time. Does this only happen on Saturdays, or is there any problem on other days at that or any other regular time? A central heating boiler coming on (to give hot water for a bath) or a security light that is in use for that half hour are two possibilities.

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KMJ,Derby's 1,811 posts GB flag
Monday, 22 August 2011
B
Brian
9:53 AM

JB38 and KMJ, many thanks for that. I may well get hold of a cheap booster to use until the DSO in April. If my (creaky, from 50 yrs ago...) maths is right, the increase in power at DSO amounts to 10dB. Right?

link to this comment
Brian's 4 posts GB flag
Briantist
sentiment_very_satisfiedOwner

2:15 PM

Brian: Yes, see "Comparison of analogue and digital signal levels" - pre-DSO is -17dB post-DSO is -7dB compared to analogue levels, that's 10dB.

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Briantist's 38,915 posts GB flag
Thursday, 25 August 2011
C
Chris Low
1:10 PM
Romford

RM3 9DE Roof Mounted

I have purchased a new Samsung HD BluRay/PVR and cannot receive any freeview channels on it despite having no problems receiving them on my 5year old Panasonic Freeview TV.

Having read some of the other comments it does appear that older sets may have a better sensitivity and that as I am probably due a new aerial it would be the way to go.

I currently receive my signal from Crystal Palace & would appreciate your advice on what type I need to buy (ie Log Periodic or Wideband) & size.

Many Thanks

link to this comment
Chris Low's 1 post GB flag
Chris's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

11:42 PM

Chris Low: For now I'd go with an 18-element Group A Yagi. The prediction suggests - because it's below 100% with DUK's assumptions - that a log-periodic probably wouldn't have enough gain.

You do not need a wideband for Crystal Palace either now or after switchover, it is unlikely that any new services would start up after switchover that are outside this group. Widebands have to be larger to provide the same amount of gain as a grouped aerial, particularly in Group A.

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Mike Dimmick's 2,486 posts GB flag
Friday, 26 August 2011
J
jb38
sentiment_very_satisfiedPlatinum

8:40 AM

Chris Low: If you can receive Freeview perfectly OK on the Panasonic but not on the new Samsung (on the same aerial) then a simple booster is all that should be necessary to correct this, as changing your aerial would be like taking a sledge hammer to crack a nut, to use the expression!

Have a look on e-bay under "TV amplifiers" or "boosters", something shown as about 10db gain would suffice so long as its shown as having two outlets, one lead to each device.

(Maybe you could indicate the model number of your new purchase)

link to this comment
jb38's 7,179 posts GB flag
J
jb38
sentiment_very_satisfiedPlatinum

9:58 AM

Chris Low: You should also be aware that Mux 1/2 (BBC & ITV) presently indicate as being variable in reception at your location, and with this continuing until April 18th next year, so even although taking the predictors element of inaccuracy into account good reception isn't guaranteed on these two multiplex channels no matter what you might do.

That said though, the booster I mentioned should certainly get over the problem you mentioned "if" its caused by a signal just under its receiving threshold, although I am a bit suspicious of you not getting anything and that's why I requested its model number.

Just for a matter of interest, boosters are generally always better as near to the aerial as you can get them "if" excessively long downleads are involved, (loft mounting perfectly OK though) although based on what you report anywhere in the vicinity of the TV or PVR being used should be OK if a weak signal is the reason for your problem, and not caused by a fault in your new purchase.


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jb38's 7,179 posts GB flag
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