menuMENU    UK Free TV logo Freeview



Click to see updates

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.

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 17/06/2024 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 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 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), 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.

Wednesday, 18 April 2012
Big Mart

10:57 PM

jb38: Your post of 13 April 'Selecting "channel update" can in many cases add to whats already stored in a TV or boxes memory and can, dependant on the box or TV, result in the frequently heard complaint of a person losing channels when the device is switched off over night, this in most cases caused by the devices memory capacity having been exceeded during a re-scan.'

I did a scan this morning with the aerial unplugged and then again with the aerial in. AFAIK everything worked okay, other than I have 3 more channels than I did prior to 4 April (118 now)! Haven't worked out what they are as have been out most of this evening.

This morning I noticed that the pictures on the HD channels were breaking up with the digital recorder switched on (but not as much as prior to today's switchover). I tried it briefly this evening and it seemed to be okay.

link to this comment
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

11:18 PM

Big Mart: The thing you always have to watch out for when receiving signals from a powerful transmitter at distances such as yours is that the level of signal is not hovering on the verges of being too strong, as this will nearly always start to cause problems on the HD channels before affecting the SD ones, and the fact of you stating that they seem OK tonight could simply be because that the level has dropped off slightly through normal atmospheric changes that take place in the evenings.

If you find that the problem of break up starts again you should purchase a simple in line attenuator of about 6db rating and see if that helps.

Needless to say, that if you have any type of booster in line then bypass it.

link to this comment
jb38's 7,179 posts GB flag
Thursday, 19 April 2012
12:00 AM

Retuned my Sony Tv and still can't get the Freeview HD channels to display. Even though Watford received the HD content before I thought it was due to signal strength in my street. Now all channels have the same broadcast strength and every other non-HD channel works as expected. Any ideas why this would happen?

link to this comment
Paul's 4 posts GB flag
12:01 AM

I have 3 Win7 Media Center PCs, all with different brand tuners. All managed the 4th. April retune, but all have failed to find any channels when rescanning today. My TV rescanned fine, so the (roof) aerial is not the problem. I am wondering whether Microsoft has failed to update the guide data? Have any other London Media Center owners had problems?

link to this comment
kate's 7 posts GB flag
kate's: mapK's Freeview map terrainK's terrain plot wavesK's frequency data K's Freeview Detailed Coverage

12:11 AM

Well for what it's worth everything was fine my end until last Sunday and then lost the lot and today everything is back but with signal quality down and strength at around the 7 mark
I guess my booster is on the blink or is not as good as i thought maybe some interference is creeping in from somewhere

link to this comment
NICK ADSL UK's 72 posts GB flag
1:44 AM

Some observations on Wednesday's switchover in case it gives any solace to the many people encountering tuning problems. I have an old Humax Fox T set top box, which I have normally retuned by deleting all of the TV and radio channel lists (using the Edit Channels function), then doing an auto tune. I did this around 8.15 on Wednesday a.m. and most things appeared fine except for channels in COM6 (Yesterday etc), which were pixellating and losing sporadic sound. I also retuned a Panasonic twin HD tuner PVR about fifteen minutes later. This showed similar problems with COM6, but in addition was not recognising any HD channels. One thing I noticed was that where channels were OK, signal strength was about 64% and quality at 100%. This contrasted to the changes on 4th April where mux PSB1 (theoretically the same maximum output as now) was showing a signal strength of 83%, and quality of 100%.

Another (non HD digital) TV was retuned elsewhere in the house using the same aerial after midday and picked up everything OK. I later then revisited the STB and PVR around 3.30 p.m., following the same processes as before but this time mux COM6 was OK, and all HD was picked up on the PVR. Since then there has been the odd glitch but things are generally OK.

My main observation is that these things seem to take a day or so to settle down, so if you've got something in most of the muxes, follow the good advice in other posts (trawl back and check earlier postings over the last few days if necessary)and try retuning at different times. One thing I also found useful in the past with the Humax box was that deleting all channels, and then switching it off at the mains (it does not have an on/off switch on the unit) seemed to ensure all memory was cleared, ready to be switched back on and retuned.

link to this comment
lesg's 6 posts GB flag
lesg's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage
4:50 AM

Yello one and all.

Anyone else noticing that picture quality has taken a hit after this switchover? Most of my channels are more noticeably pixellated/ low-bit-rate-seeming (including Beeb output). Before the 18th, I had better reception.

Yes, did the factory reset milarkey. Yes, I have all the channels.. but signal quality rating appears to have dropped off on some.

Granted, I have a donkeys' years old roof antenna that's dwarfed by the neighbour's fancy, fully-featured mast just beside it (perhaps he's stealing some of my waves ;)), and we used to get terrible ghosting in analogue mode (analogue Channel 5 had all but disappeared); nevertheless, digital reception has been pretty good til the great switcheroo came round.

Our TV is a modern, all-singing all-dancing Panasonic Freeview HD number, bought last December. Big deal! Not much use if the signal is going to be pants like this...

Are there others who are less than impressed with the arrival of the new era in broadcasting?

"Things can only get better, can only get betteeeer..."

link to this comment
morningster's 2 posts GB flag

7:34 AM

Paul: The thing that immediately springs to mind is that your TV is an HD Ready device, and if it is then it will not have a DVB-T2 tuner fitted with this being a requirement to receive HD channels.

If you have the manual for the TV then have a look in the specifications / tuner section and check if DVB-T2 is mentioned, as if its only DVB-T then that cannot receive HD.

If you dont have the manual then come back with the TV's model number and this aspect can be checked out.

link to this comment
jb38's 7,179 posts GB flag

7:41 AM

morningster: Although you have not mentioned your location I am unable to check the signal strength expected in your area, but speaking in general terms if reception in any area has deteriorated after switchover then its in most cases caused by the signal strength received being excessively high, and so any booster in line should always be by-passed.

If though no booster exits, then a test should be carried out using a set top aerial, or even a short piece of wire (about 12") plugged into the inner part of the aerial socket.

link to this comment
jb38's 7,179 posts GB flag
8:01 AM

My Sony 32CX523 is meant to receive HD channels. I have done a factory reset but the HD channels seem to think that the signal for them is very weak.

Thanks, Paul

link to this comment
Paul's 3 posts GB flag
Select more comments

Your comment please
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.

UK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.

Privacy policy: UK Free Privacy policy.