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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 02/10/2023 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

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.

 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, 250 BBC Red Button, plus 15 others

 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),

 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, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

 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! Movies Action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 69 HorrorXtra, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 203 CITV, 208 Pop Player, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 16 others

 H max
C22 (482.0MHz)321mDTG-8200,000W
Channel icons
 Smithsonian Channel, 11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 70 Quest +1, 71 That's 60s, 74 Yesterday +1, 75 That's 70s, 233 Sky News, plus 9 others

 H max
C28- (529.8MHz)321mDTG-8200,000W
Channel icons
 Quest Red +1,  Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 73 HobbyMaker, 76 That's 80s, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 90 Together TV +1, 235 Al Jazeera Eng, plus 19 others

 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

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.

Thursday, 19 April 2012
Dave Lindsay

7:23 PM

Gary Faulkner: I assume that "U21" means UHF channel 21 is HD services from Sandy Heath which are available at your location.

I am surprised that the TV has not stored all services from one multiplex.

What you do depends on the design of the TV; what it will allow. You may find the Crystal Palace ITV1 HD in your 800s and you may just swap the two. Or you may delete the main ITV1 HD and manually add the CP one which is on C30.

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Dave Lindsay's 5,724 posts GB flag
7:56 PM

Technical questions please.
1) When looping the aerial feed through a HDD/DVD recorder to a good quality digibox, does the signal to the digibox get amplified or reduced and by how many dB. I seem to have read somewhere that a + 3 db could occur?.
2) By what % does a 12 dB attenuator reduce the signal . By 90%?
3) With a 2 way passive splitter, is the signal split 50/50 assuming minimal down line coax cable


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optimist's 12 posts GB flag
optimist's: mapO's Freeview map terrainO's terrain plot wavesO's frequency data O's Freeview Detailed Coverage
David Taylor
8:11 PM

Hi JB38
Thanks for reply.
When on analogue the signal was so poor I fitted a motorised aerial direction box.
At one time it was so bad I had to aim at
Chelmsford, I think, and watch Anglia so unless something remarkable has happened to
improve recption I don't think it can be too strong. My nieghbours at the side and behind
had the same trouble so we seem to be in a dead spot. I took the box back and swopped it
but the new one is the same.Is there any difference between a cheap box and a dearer one.Will try with indoor aerial and let you know


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David Taylor's 12 posts GB flag
David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
8:59 PM

I've lost the band of channels that includes film four, itv 4, yesterday etc. I've tried re-tuning my freeview box but they haven't returned. My signal is from the Crystal Palace transmitted. Can someone help me, in layman's terms, please? I not so good when it comes to technology.
Thanks for any replies,

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Pam's 1 post GB flag

9:04 PM

David Taylor: Yes, try the set top or wire test, as now you are experiencing the same symptoms with your new box its definitely inclined to suggest instability in the tuner, and that can only really happen when the RF being fed into its tuner is intense to the extent that its causing self oscillation to occur, the audio/visual symptoms you describe being a classic one.

That said though, if it is instability, then what's seen should stop instantly if you pull the aerial out.

By the way, the only boxes that use what could be considered as higher grade tuners are Humax devices, as a huge range of boxes (about 15 or so) seen in places like Argos etc are all based on variations of Vestel (Turkey) chassis, the ironical thing being that its boxes with the more sensitive tuners that are first to suffer from RF overloading, boxes that are on the deaf side generally coping better in this type of situation, that being why some people with more than one box in their house finds that stations can be picked up one box and not the other, all down purely to the differing sensitivities involved.

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jb38's 7,179 posts GB flag

10:25 PM

Pam. Try a manual scan on channel 28 and see what happens.

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Tim's 32 posts GB flag
Tim's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage

10:35 PM

For pvr's and HD recorders the top brands are humax and Panasonic and it would be wise to stick on these 2 brands only if in doubt as the other brands can be aerial quality /strength specific and may not be suitable at this time under varying condition's

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NICK ADSL UK's 72 posts GB flag
Dave Lindsay

11:11 PM

Pam: What's the make and model?

If it's a Grundig GDB2 or GDB3, for example, then I wouldn't expect it to work with these channels from Crystal Palace as there is a known issue.

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Dave Lindsay's 5,724 posts GB flag
Dave Lindsay

11:14 PM

Pam: Sorry, I meant Goodmans GDB2 and GDB3 rather than Grundig. They both begin with a G!

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Dave Lindsay's 5,724 posts GB flag
Big Mart

11:32 PM

jb38: My television signal comes from a block of flats across the road, going underground and then fed into the houses opposite!

I have no idea what is there, I just plug the aerial in from a wall socket.

TBH All seems well, but hopefully tomorrow will be the first evening I will be able to check everything since Wednesday.

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Big Mart's 83 posts GB flag
Big's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
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