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 18/11/2024 Screen may go black 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), 71 That’s 60s,
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 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)	321m	DTG-8	200,000W
	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)	321m	DTG-8	200,000W
	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)	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?

M

Mike Batchelor
4:43 PM

Ihave tried the Sony tv direct with the and the strength was 85% still bouncing a little the HD were also blanking out as before . I have fitted a tv aerial splitter so I can supply both tv's and the signal strength is 70% the BBC HD channels are okay but ITV HD is still blanking out but not quite as much as previously I think I have exhausted all possibilities with what I have maybe I should look into a new aerial .

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Mike Batchelor's 4 posts GB flag

Dave Lindsay

_{sentiment_very_satisfied}Platinum

5:01 PM

Mike Batchelor: Something is not right.

BBC One HD, BBC Two HD, ITV HD and Channel 4 HD are all carried on the same (same ) so either whatever is causing your issue happens to come into play when you watch ITV HD, or, for some reason, ITV HD is tuned to another .

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Dave Lindsay's 5,724 posts GB flag

C

Craig
3:06 PM
London

Hi, you can.

We've renewed our basic top with a larger 48 element aerial so the flat below can share the drop via an U powered splitter. We previously had good for all , except film 4 would occasionally pixelate slightly in high winds / rain. With the new aerial all channels are ok except film 4 and ITV 4 which are far more prone to pixelation or complete loss of / sound, especially in cloudy weather like today (yesterday had blue skys and full picture!)
Any ideas would be appreciated, thanks

Info below:
Postcode N1 4PN
Aerial fitted: SLx aerial CAI std 2 (from toolstation)
Direction:pointed directly via line of sight to
Film 4 tuning channel: 28
Strength ranges from 10-45%, yesterday: steady 50%

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Craig's 2 posts GB flag

Craig's: C's Freeview map C's terrain plot C's frequency data C's Freeview Detailed Coverage

C

Craig
3:07 PM

Typo to last post: UNPOWERED splitter

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Craig's 2 posts GB flag

MikeP

_{sentiment_very_satisfied}Platinum

4:52 PM

Craig:
The problem with unpowered splitters is that they seriously reduce the strength, to about 1/3rd for each of the two TV sets and assuming they are both plugged in. (1/3rd for each TV tuner and the other 1/3rd lost in the splitter.) If one TV is unplugged the results can be catastrophic as the 75 Ohm matching no longer occurs.
I would advise using a low powered splitter designed for 75 Ohm UHF TV use and good cables with well fitted plugs. These splitters generally 'isolate' the outputs from each other and there is no significant loss of signal strength, there may even be some gain so be careful not to have too much gain/signal strength. However, cheap splitters can create conditions for and/or poor signal quality on some of the signals but others may be unaffected.

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MikeP's 3,056 posts GB flag

K

KMJ,Derby

_{sentiment_satisfied}Gold

6:39 PM

Craig: An 18 element group A yagi would probably deliver a stronger and with a lower wind loading! Slight repositioning of the might improve of ie raising or lowering, or mounting a few inches to either side of the present location.

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KMJ,Derby's 1,811 posts GB flag

M

Mike Batchelor
10:25 AM

Dave Lindsay Thank you for your advice . It could be the which is only four miles away . I didn't use this transmitter because it is unmanned and has been unreliable in the past . I will check the ITV HD setting .

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Mike Batchelor's 4 posts GB flag

C

Craig
8:36 PM
London

MikeP and KMJ
Thanks for your advice, we've tried a bit of repositioning but it didn't give us any better and we're already using foil shielded .

I'll explore having a look a new or powered splitter. Would a do the job (Product: procception proMHD12M - 10dB) with a mains amp within the flat?

Thanks

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Craig's 1 post GB flag

Craig's: C's Freeview map C's terrain plot C's frequency data C's Freeview Detailed Coverage

S

Simon
9:21 PM
London

Sir

I seem to have moved my indoor Ariel, just need to know this - what is the actual degree ref of the , I live in Putney facing south...

Yours
SG

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Simon's 1 post GB flag

Simon's: S's Freeview map S's terrain plot S's frequency data S's Freeview Detailed Coverage

Briantist

_{sentiment_very_satisfied}Owner

10:05 PM

Simon: e-se 112°

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Briantist's 38,915 posts GB flag

Page 148

Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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