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

Brian Butterworth first published this on 1st May 2004 at 08:20 - UK Free TV

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51.424,-0.076 or 51°25'26"N 0°4'32"W

SE19 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 22/04/2024 Pixelation or flickering on some or all channels

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.

Mux	H/V	Frequency	Height	Mode	Watts
PSB1 BBCA	H max	C23 (490.0MHz)	324m	DTG-	200,000W
	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)	324m	DTG-	200,000W
	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)	324m	DTG-	200,000W
	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 66 TBN UK,
COM4 SDN	H max	C25 (506.0MHz)	314m	DTG-8	200,000W
	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)	321m	DTG-8	200,000W
	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)	321m	DTG-8	200,000W
	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)	324m	DTG-12	20,000W
	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?

BBC London 4.9m homes 18.4%
from London W1A 1AA, 12km north-northwest (335°)
to BBC London region - 55 masts.

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 Athletic	Transposer	Redeveloped north stand Charlton Athletic Football Club	130 homes
Deptford	Transposer	south-east London	100 homes
Greenford	Transposer	12 km N Heathrow Airport	203 homes
Hendon	Transposer	Graham Park estate	50 homes
White City	Transposer	9 km W central London	80 homes

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

	1950s-80s	1984-97	1997-98	1998-2012	2012-13	21 Mar 2018
	VHF	A K T	A K T	A K T	A K T	W T
C1	BBCtv_waves
C22					ArqA	ArqA
C23		ITV_waves	ITV_waves	ITV_waves	BBCA	BBCA
C25					SDN	SDN
C26		BBC1_waves	BBC1_waves	BBC1_waves	D3+4	D3+4
C28					-ArqB	ArqB
C29						LW
C30		C4_waves	C4_waves	C4_waves	-BBCB	BBCB
C33		BBC2_waves	BBC2_waves	BBC2_waves		com7
C35						com8
C55_{tv_off}						com7_{tv_off}
C56_{tv_off}						COM8_{tv_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

Local transmitter maps

Crystal Palace Freeview Crystal Palace DAB Crystal Palace AM/FM Crystal Palace TV region BBC London London

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

Sep 1955-Jul 1968	Associated-Rediffusion†
Sep 1955-Jul 1968	Associated TeleVision◊
Jul 1968-Dec 1992	Thames†
Jul 1968-Feb 2004	London Weekend Television♦
Jan 1993-Feb 2004	Carlton†
Feb 2004-Dec 2014	ITV plc♦
Feb 2004-Dec 2014	ITV plc†

Feb 1983-Dec 1992	TV-am•
Jan 1993-Sep 2010	GMTV•
Sep 2010-Dec 2014	ITV 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.

Is the transmitter output the same in all directions?

Briantist

_{sentiment_very_satisfied}Owner

6:48 AM

Point: I don't think such a list exists. The changes to allow boxes to auto retune at was added to the specification for Freeview (the so-called D-Book) quite some years ago.

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Briantist's 38,915 posts GB flag

Briantist

_{sentiment_very_satisfied}Owner

7:06 AM

Adrian: It is most likely the that connects your box to the set. Remove it from both devices and then reconnect it firmly.

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Briantist's 38,915 posts GB flag

J

jb38

_{sentiment_very_satisfied}Platinum

9:01 AM

Point: Just to confirm / back up 's reply to your query insomuch that this is quite correct there isn't any list, and with so many variations in the menu facilities offered between the various brands (and sometimes across different models within) from basic primitive to quite sophisticated its not practical to make a note of them.

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jb38's 7,179 posts GB flag

A

Alex
12:51 PM
Tadworth

Hello,

Recently moved into a new flat, and it picks up every single SD channel fine, however, it struggles with the HD .

When I first tuned it in the day time, it picked them all up, and the / were both strong. However, as soon as it got dark, it lost all signal/quality.

I have since retuned all channels, and it won't pick up any HD channels at all. Doing a signal check on channel 31 in the Manual option gives 0% Signal and 0% quality, however every other channel is around 70% signal, 100% quality.

Any ideas? Using a Humax HDR-FOX T2.
Postcode KT20 6SU

THanks all

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Alex's 1 post GB flag

Alex's: A's Freeview map A's terrain plot A's frequency data A's Freeview Detailed Coverage

K

KMJ,Derby

_{sentiment_satisfied}Gold

1:43 PM

Alex: Although the signal on is predicted to offer reasonable odds on giving good on the HD , the signal is at risk of from both and at your location. When retuning at a time of receiving a poor signal (or ) the details of the HD would have been removed from the 's memory. Wait until 18th April 2012 for the high HD service to start at Crystal Palace, otherwise, until that date keep looking at doing a manual tune on C31 to see if the low power signal has returned.

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KMJ,Derby's 1,811 posts GB flag

M

Mike Dimmick

_{sentiment_very_satisfied}Platinum

2:22 PM

Alex: The HD are on lower than the other multiplexes at present, and the also uses the same channel as one of the SD multiplexes from , at the moment.

This will change on 18 April: the HD will move, taking over 's , and be boosted to the same high power as the other multiplexes' new power levels - 20x the current power level.

Night-time does tend to cause interfering signals to travel further, something called 'tropospheric enhancement'.

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Mike Dimmick's 2,486 posts GB flag

D

David
12:29 AM

Alex. The HD is also at a higher bit rate, which means that it needs a better to noise ratio. This means that it is at a disadvantage of more than the factor of 2 implied by the relative transmit power, when compared with ITV multiplexes and even more when compared with BBC ones. It will still be at a disadvantage when it goes to full power in April.

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David's 2 posts GB flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

11:28 AM

- BBC ONE Off Air; related from 00:26 on 07 Feb to 05:41 on 07 Feb BBC ONE Weak from 05:41 on 07 Feb BBC ONE Weak Signal from 16:00 on 01 Feb to 00:26 on 07 Feb BBC TWO Weak Signal from 16:00 on 01 Feb [BBC] Over the next week Crystal Palace main transmitter: TV (analogue) Possible weak signal, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 150,874 posts xx flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

11:28 AM

- BBC ONE Off Air; related from 00:26 on 07 Feb to 05:41 on 07 Feb BBC ONE Weak from 05:41 on 07 Feb BBC ONE Weak Signal from 16:00 on 01 Feb to 00:26 on 07 Feb BBC TWO Weak Signal from 16:00 on 01 Feb [BBC] Over the next week Crystal Palace main transmitter: TV (analogue) Possible weak signal, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 150,874 posts xx flag

Transmitter engineering

_{sentiment_very_satisfied}Owner

3:41 PM

- BBC ONE Weak from 16:00 on 01 Feb to 00:26 on 07 Feb BBC ONE Weak Signal from 05:41 on 07 Feb BBC ONE Off Air; related from 00:26 on 07 Feb to 05:41 on 07 Feb BBC TWO Weak Signal from 16:00 on 01 Feb [BBC] Over the next week Crystal Palace main transmitter: TV (analogue) Possible weak signal, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 150,874 posts xx flag

Page 141

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