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

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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 15/04/2024 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

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, plus 16 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, 107 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! 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

 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

 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

 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.

Friday, 18 June 2021
Transmitter engineering

11:46 PM

CRYSTAL PALACE transmitter - AM: Slightly reduced power due to a fault from 18 Jun 22:25. . [BBC]

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Transmitter engineering's 150,644 posts GB flag
Saturday, 19 June 2021
Transmitter engineering

8:46 AM

CRYSTAL PALACE transmitter - AM: Off the air due to a fault from 19 Jun 08:09 until 19 Jun 08:23. Slightly reduced power due to a fault from 18 Jun 22:25 until 19 Jun 08:09. . [BBC]

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Transmitter engineering's 150,644 posts GB flag
Transmitter engineering

5:46 PM

CRYSTAL PALACE transmitter - AM: Off the air due to a fault from 19 Jun 13:54 until 19 Jun 17:38. Off the air due to a fault from 19 Jun 08:09 until 19 Jun 08:23. Slightly reduced power due to a fault from 18 Jun 22:25 until 19 Jun 08:09. . [BBC]

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Transmitter engineering's 150,644 posts GB flag
Sunday, 20 June 2021
Anthony Denyer
7:47 AM

what has happened to com 7? I used to be able to get it although it sometimes dropped out, but now it has gone. I live in Berkhamsted (HP4 2JG). Is it likely to return? Thank you

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Anthony Denyer's 2 posts GB flag
Anthony's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage

4:19 PM

Anthony Denyer:

It hasn't gone anywhere, it's still transmitting. When did you lose it?
Are you missing any other channels other than those on COM7?
See Channel listings for Industry Professionals | Freeview for which channels are carried on which multiplex.

If perchance you retuned when the signal was absent or had bad pixelation, then this would likely just clear the correct tuning. This could have happened if there was Planned Engineering or on occasion recently there's been some variable Tropospheric Ducting with the high pressure which would have periodically caused interference from more distant transmitters.

You might also get interference if you have any HDMI cables close to poorly screened aerial cables or flyleads which aren't double screened types. C55 seems to be especially vulnerable in many cases. Make sure such leads are well separated.

Try a manual tune on UHF C55. COM7 reception in your road is predicted to be more reliable in the higher numbers - from Crystal Palace.
Which way is your aerial pointing? Are the rods (or squashed Xs) horizontal? It should be pointing at a bearing of 136 degrees (SSE). Check it's still pointing the correct way and it and the downlead look undamaged.

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Chris.SE's 4,144 posts GB flag
David Warner

6:07 PM

Chris.SE: Frreview 77 is noit in COM 7 - it seems to be on channel 25m whatever multipolex that is - and avaailable to 3am suggesting its one of those holding pattern channels designed to stop someone else muscling in.

I am not prepared to check it at 3 am - but I am prepared to inform Chris that all my COM 7 reception has currenlty ceased - due to leaves trees by the look of it.

I will recheck my COM 7 in October when the leaves start falling.
I've invested in different aerials over the last 5 years to try to get over this issue.
Why can't Arqiva invest in a proper multiplex for BBC Four HD, BBC News HD and PBS America +1?

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David Warner's 30 posts GB flag

11:46 PM

David Warner:

I don't know which list you looked at to give you the impression that LCN77 was on COM7, the Freeview page shows it on the SDN multiplex, the programme (TCC) on that multiplex is on UHF C25 at Crystal Palace (as also listed above).
Like several channels on some of the COM muxes, according to my data source, this one timeshares with LCN80 Blaze+1 at 0200 for an hour (despite what the EPG says!) it's stated on the caption on its page and then with LCN63 Blaze at 0500 through to 0200. Don't ask me why Blaze does it that way, I don't know!

I'm sorry you still have problems with COM7 in the summer due to those trees in your line-of-site.
It's not simply a case of Arqiva investing in a "proper" multiplex, don't forget that we are limited by International and European agreements on the frequencies and power that can be used, but in any event, I'm certain that BBC4 HD, BBC News HD, PBS America & others would not be prepared to pay for another multiplex.
As I'm sure you recall, we had COM8 which closed because it became uneconomic, due to uncertainty in 2020 about advertising revenue for the other channels and the duration of the OFCOM Licence. The licence for the temporary multiplexes COMs 7&8 says they'd close by June 2022 at the latest, or on 3 months notice to use these frequencies for SDL usage by whichever MNO bought the frequencies in the 700MHz auction. As recently announced that's EE, so we await to see how long it will be before they have suitable cell equipment ready to use.

As you may recall from your previous posts, not all data on these web-pages has been updated with the 700MHz Clearance changes, here it's the Local mux which is now on C35 (not 29).

A reminder for all, in the multiplex order BBCA/PSB1, D3&4/PSB2, BBCB HD/PSB3, SDN/COM4, ArqA/COM5, ArqB/COM6, COM7, Local multiplex, the UHF channels for Crystal Palace are as follows
C23, C26, C30, C25, C22, C28, C55, C35 (London Local mux).

In case your signals aren't the strongest, it's worth trying a manual tune (if your device allows it) on C55 &/or C35. Autotune sometimes misses weaker signals.

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Chris.SE's 4,144 posts GB flag
Monday, 21 June 2021
David C Warner

12:10 PM

Chris.SE: I wish they'd get on and close COM7 and then make alternative arrangements for the proper HD channels.
At the moment half the country can't get COM7 stations because they are on relays not carrying COM7

How about some so-called levelling up for Freeview viewrs?
Meanwhile they could re-capture some bandwidth by getting rid of the neo Nazoi channels - RT and GB Mres, and also the porn that someone somewhare presumably patys Dirty Desmoind to transmit to them.on COIM5 and 6.

To think Arqiva was once Post Office Telecommunications. Mrs Whitehouse would have had them in court in no time.

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David C Warner's 30 posts GB flag

1:50 PM

David C Warner:

If they were to close COM7 now, we'd just lose those channels. IF as speculation thinks, they convert one (at least) of the existing multiplexes to T2, it will take time for that to be done around the country BUT that may not happen, as you know there is a move towards more streaming stuff and suggestions are that we'll be linked to a stream for channels we can't get over air, whether that be due to faults, engineering or whatever, we'll have to wait and see. There have been no announcements either way.

I'm waiting to see what happens on Freeview (if anything) for the extra Red Button channels for Wimbledon that have appeared on Satellite. Rumours were they'd also be added to Freeview but there is no space unless they are just links to streaming (or they reopen COM8 for the duration, ha ha!), whatever no announcements yet, I've also been checking muxes to see if anything appears.

Arqiva are a commercial organisation (like any business) and have to be able to pay staff and the bills etc. so they have to have broadcasters willing to pay for space on the multiplexes, and maybe also will to pay any additional costs (if any) for T2! All channels/broadcasters also have to have a licence from OFCOM and are regulated by them.

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Chris.SE's 4,144 posts GB flag
David C Warner

9:32 PM

Chris.SE: Thanks. I do hav e a Roku stick - I ought to do an AB vs Freeview ch9 to see if it's more like HD.

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David C Warner's 30 posts GB flag
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