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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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Crystal Palace (Greater London, England) transmitter.

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-3200,000W
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

PSB2
D3+4
 H max
C26 (514.0MHz)324mDTG-3200,000W
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, 30 E4 +1, 35 ITV1 +1 (London),

PSB3
BBCB
 H max
C30- (545.8MHz)324mDTG-6200,000W
Channel icons
56 5SELECT, 101 BBC One HD (England no regional news), 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

COM4
SDN
 H max
C25 (506.0MHz)314mDTG-8200,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

COM5
ArqA
 H max
C22 (482.0MHz)321mDTG-8200,000W
Channel icons
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, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 8 others

COM6
ArqB
 H max
C28- (529.8MHz)321mDTG-8200,000W
Channel icons
 FreeSports, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Aljazeera English, plus 19 others

LW
 H -10dB
C35 (586.0MHz)324mDTG-1220,000W
Channel icons
from 31st March 2014: 8 LONDON LIVE,

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
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, 11km north-northwest (334°)
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
Tuesday, 27 March 2012
J
jb38
sentiment_very_satisfiedPlatinum

9:34 PM

Tim: Yes, you are quite correct regarding the atmospheric conditions (high pressure) that is presently applying, and which is responsible for disrupting television reception across large areas in the UK, although apparently this high pressure "inversion" effect problem mainly affecting South of the border as there are at present anyway, very little complaints about reception difficulties being made from the Scottish regions.

I also agree that come April the 18th when Crystal Palace is fully switched over to high powered operation that most complaints of reception difficulties from that station will virtually vanish, that said though, I do fully expect that there is going to be quite a number of new complaints springing up due to signal overloading problems causing instability in TV and boxes tuners, the symptoms of being "exactly" the same as that of a weak signal, although a lot easier to cure by the addition of an attenuator in line with the receiving equipments aerial sockets.

Thank you also for your most complimentary comments regarding the site.

link to this comment
jb38's 7,179 posts GB
Wednesday, 28 March 2012
P
Pedro dd
sentiment_satisfiedSilver

9:08 PM

You have a very good prediction for crystal palace (london), so is you aerial in good condition and all the cables connected correctly? If so, it could be propagation wiping out the channels you mention.

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Pedro dd's 101 posts GB
Friday, 30 March 2012
M
Matthew Hopkins
12:43 PM

Is ArqB going to be (post-DSO) on C28 or C28- please ?

According to Ofcom, it's going to be C28-

http://stakeholders.ofcom….pdf

That document is dated 20 January 2012.


link to this comment
Matthew Hopkins's 1 post GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:57 PM

Matthew Hopkins: Digital UK Tradeview predictor concurs that it will be 28-

link to this comment
Dave Lindsay's 5,724 posts GB
M
Mike Dimmick
sentiment_very_satisfiedPlatinum

2:24 PM

Matthew Hopkins, Dave Lindsay: Chances are this is to ensure that the suggested local TV service on C29 has a full 8 MHz. It will probably actually be C29-. The issue is caused by BBC B having a negative offset - which is to stay out of the way of whatever service ultimately ends up bordering at 550 MHz (i.e. the bottom of C31).

Nearly all receivers will automatically detect and apply the offset even if manually tuned. There are a number of receivers, based on Vestel's T810 chassis, that can't handle negative offsets in 8K mode, if they haven't had an update. See Unofficial Vestel PVR Information (UK) - T810 Freeview Recorder for a list of known models.

link to this comment
Mike Dimmick's 2,486 posts GB
Sunday, 1 April 2012
G
Graham
12:10 AM
Camberley

I've made this comment elsewhere, but it's probably worth repeating. I asked in a local TV dealer in Surrey if they were also experiencing poor digital reception at the moment. Their answer was "of course we are and we've been told by a rep that the reason is the Crystal Palace transmitter power output has been reduced whilst they are making modifications prior to DSO". I guess if you are working on an aerial with 20kW of RF, then so would you. We've had high pressure and inversions many times over the last 5 years but we have always maintained a good signal. Since early February, whilst they have been working on the transmitter, poor atmospherics have combined with lower signals, hence loss of reception on several multiplexes. Here's to the 4th April and 200kW.

link to this comment
Graham's 8 posts GB
N
nicholas
4:24 PM

Authoritative sources on WWW appear to indicate the forced switch-off of analogue and consequent hassle and expense for people re digital was caused by an oversight of the government project team in allocating bandwidth and frequencies for the olympics and so forth to overseas media and security purposes. The trusty old analogue gets given to them and the fee paying public get aeroplane disturbance, high pressure "inversion" and a headache if someone uses DIY tools between the transmitter and aerial.

Then of course you could catch analogue virtually anywhere but digital needs a full on unfettered path or it's patchwork city on the tv screen.

Then there was a paper written by the scottish parliament outlining how lucrative digital would be for politics and councils.

I do hope the powers that be will solve all the issues so everyone will be able to enjoy the tv/radio as enjoyed during the rusty old but fully working analogue days.

link to this comment
nicholas's 1 post GB
T
tony
8:32 PM
Harlow

hi...i run my freeview thru a humax 9200t box and have lost count of how many times i have had to retune in last 2 weeks..itv ,channel 4,channel 5 were impossible to get here (harlow) lets hope after the 18th of april it gets better,my rx20 aerial is pointing to crystal palace but i think sandy heath may have been a better option...Here in harlow the crap virgin media are only giving the 5 usual channels thru their pipelines to homes...how do they get away with it!! they should be FORCED by government to give all freeview channels,They took over from NTL ..WHAT a shambles..i blame the councils for letting these companies do what they want

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tony's 5 posts GB
Monday, 2 April 2012
O
optimist
2:35 PM
Stansted

Attenuator.
Currently have masthead amp.
Assuming after 18th, too much signal, which make attenuator would be best suited for use at at the digibox input end. Don't want to mess around with aerial end if possible. Or if I cut off the power to the mast head amp, will the signal "pass though" un-amplified so that an attenuator would not be necessary?

Tks

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optimist's 12 posts GB
J
jb38
sentiment_very_satisfiedPlatinum

3:37 PM

optimist: As far as your mast head amplifier is concerned, if you cut off its power supply then its not the case that the signal will pass through unamplified but will actually be attenuated to less than it would be straight from the aerial, something which could possibly work to your advantage after April 18th provided that the signal received is strong enough.

My reason for saying that is that you would appear to be located in a less than ideal area for reception, as even after CP's switch to high power the predictions seen aren't exactly brilliant, and I also notice that Sandy which is 10 miles closer than CP doesn't provide good reception across all six muxes at the same time on any occasion, Sudbury having a permanent "variable" reception status across all muxes.

Its really one of these cases of wait and see, as CP might not have quite the effect
that its increase in power would suggest.

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jb38's 7,179 posts GB
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