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.

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
_______

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-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, 250 BBC Red Button, plus 15 others

PSB2
D3+4
 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, 30 E4 +1, 35 ITV1 +1 (London),

PSB3
BBCB
 H max
C30- (545.8MHz)324mDTG-200,000W
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 Player, 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 9 others

COM6
ArqB
 H max
C28- (529.8MHz)321mDTG-8200,000W
Channel icons
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 Al Jazeera Eng, plus 19 others

LW
 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, 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, 12 February 2013
Dave Lindsay
sentiment_very_satisfiedPlatinum

10:41 PM

Steve Flynn: I think we covered this one when you made your posting before DSO. Haslemere relay transmitter is co-channel with Crystal Palace's COMs.

Not sure whether a phased array might help:

http://www.wrightsaerials….pdf

link to this comment
Dave Lindsay's 5,724 posts GB
S
Steve Flynn
11:08 PM
Haslemere

Dave Lindsay: Thanks, I had forgotten about co-channel interference which in this case is 100% effective in the worst way. Predictions around DSO seemed to change on a daily basis so I wasn't sure what I would eventually get.

I don't think I want yet another aerial on my pole so phased array isn't an option. A local installer suggested switching my CP aerial to vertical but I may look at a better aerial for Hannington instead.

Thanks again, at least I know there is little I can do now.

link to this comment
Steve Flynn's 8 posts GB
Wednesday, 13 February 2013
Dave Lindsay
sentiment_very_satisfiedPlatinum

9:50 AM

Steve Flynn: At switchover we had a posting from someone off Grayswood Road who had lost access to Haslemere transmitter and therefore BBC South/ITV Meridian programming because of this. Understandably he wasn't happy because he wanted these regional services rather than the London ones. His location was on the fringes of the Haslemere transmitter and, evidently, its signal is no match at that location for Crystal Palace's.

link to this comment
Dave Lindsay's 5,724 posts GB
S
Steve Flynn
1:55 PM
Haslemere

Dave Lindsay: Maybe I should swap houses with the man from Grayswood :)

My Hannington aerial is Group E and I see that the transmitter is now listed as Group B. I think the theoretical difference in gain between otherwise similar B and E group aerials is about 2dB but would this make enough of a difference for those lower powered Mux's?

link to this comment
Steve Flynn's 8 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

2:30 PM

Steve Flynn: Interestingly, Hannington's four former analogue channels were not within a single third of the band Group, but semi-wideband Group E so I guess this might be how come your aerial is an E.

I'm not a professional, so can only give you theory. Here are some example gain curves:

Gain (curves), Again

An aerial's gain is simply at the expense of "loss" in other directions. So a higher gain aerial focuses the signal into a narrower beam. The gain of yagi aerials drops off on lower channels hence they are less directional on lower channels than on higher ones.

However, your amplifier will increase the amplitude of the signals. Getting a higher gain aerial doesn't necessarily improve matters as it has a narrower acceptance angle. As you are trying to pick it up at the bottom of a drop, having your aerial receiving on a finer beam isn't necessarily a better thing because the quality may suffer. You can increase the amplitude of a signal with an amplifier, but if you don't have the quality (digits in order) then you might as well pack up. See:

Television Aerial Boosters / Amplifiers, Splitters, Diplexers & Triplexers

What sort of reception of the Hannington COM channels do you get? If it is poor at times, is it strong but poor quality?

link to this comment
Dave Lindsay's 5,724 posts GB
M
martyh
sentiment_satisfiedBronze

8:38 PM

jb38 re: '4G' reply - thanks.

link to this comment
martyh's 25 posts GB
S
Steve Flynn
9:47 PM
Haslemere

Dave Lindsay: Reception varies, at present COM5 is pretty good with quality at 8-9 out of 10 but COM 4 & 6 are only at quality 1-2. Strength is around 7-8 on all.

The gain curves on your link seem to show that a B Group aerial would be a better bet but I guess I should check that my current aerial is giving the best it can first.

My amplifier is in circuit to diplex TV and FM as well as distribute to different rooms but I don't think it is causing any problems with too strong a signal - I bypassed it just to check.

link to this comment
Steve Flynn's 8 posts GB
Sunday, 17 February 2013
K
KMJ,Derby
sentiment_satisfiedGold

8:34 PM

Steve Flynn: The poor quality on some muxes is indicative of the signal either being subject to interference from another transmitter (including an RF modulator) or the signal is corrupted due to multiple reflections or partial obstructions such as trees in the signal path. The Digital UK postcode checker does not make a prediction for the Hannington COM muxes at your location and significantly shows the PSB mux on C42 as being less reliable than the other two. This makes me wonder if Heathfield signals could be present at a very low level, but sufficient to cause problems to reception from Hannington. Heathfield shares C41, C42, C44 and C47 with Hannington. If this is the case careful positioning of the aerial to find a null for the Heathfield signals will be required.

link to this comment
KMJ,Derby's 1,811 posts GB
Monday, 18 February 2013
T
Tony Putner
6:15 PM

Hi, Please could you tell me why there is no ITV3 transmission from the London tansmitter at East Grinstead West Sussex? Also the number channels transmitted is low compared with other transmitters. Thank you.

link to this comment
Tony Putner's 1 post GB
K
KMJ,Derby
sentiment_satisfiedGold

6:58 PM

Tony Putner: ITV3 is carried on the SDN mux which is only transmitted from main transmitters and a number of former relay sites which serve relatively large numbers of viewers. The reason for this is based on economics, as additionally serving all the other relays would double the transmission costs whilst only adding about 8% more viewers. The owners of the COM muxes therefore declined when invited to consider serving additional sites. Crystal Palace is your nearest main station for reception of the full six mux service.

link to this comment
KMJ,Derby's 1,811 posts GB
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.