Full Freeview on the Crystal Palace (Greater London, England) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 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.
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
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 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.
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 | BBCtvwaves | ||||||||
C22 | ArqA | ArqA | |||||||
C23 | ITVwaves | ITVwaves | ITVwaves | BBCA | BBCA | ||||
C25 | SDN | SDN | |||||||
C26 | BBC1waves | BBC1waves | BBC1waves | D3+4 | D3+4 | ||||
C28 | -ArqB | ArqB | |||||||
C29 | LW | ||||||||
C30 | C4waves | C4waves | C4waves | -BBCB | BBCB | ||||
C33 | BBC2waves | BBC2waves | BBC2waves | com7 | |||||
C35 | com8 | ||||||||
C55tv_off | com7tv_off | ||||||||
C56tv_off | COM8tv_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 LondonWhich companies have run the Channel 3 services in the Crystal Palace transmitter area
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Tuesday, 1 February 2011
mihaid: Your reception problems do not mean there were transmission problems. Please see Freeview reception has changed? | ukfree.tv - independent free digital TV advice .
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M
mihaid1:30 PM
London
All of the muxes are ok now. absolutely nothing changed in my setup.
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mihaid's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
M
mihaid3:25 PM
London
I would say it would be unlikely to have the same atmospheric conditions for inversion effects simultaneously in high wycombe , chelmsford, and west malling.
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mihaid's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
mihaid: Who said it was "atmospheric conditions"? It will be your own equipment.
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Someone somewhere is telling porkies.
I use the Hemel Transmitter which comes off Crystal Palace and like others posting we have intermittent problems at the moment. Signal strength is generally holding up, then the actual program just breaks up before returning to normal.
This suggests the transmission link(s) are already starting to fail. No problem at the moment as analogue is still working well.
It should be great fun when the analogue gets turned off - still, not much worth watching anyway, what a waste of radio spectrum!!
Please don't say it's all OK or I might be tempted to cry!
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Wednesday, 2 February 2011
Norman: Thank you for your uninformed speculation.
I suggest you try to fix YOUR reception problem by looking at Freeview intermittent interference | ukfree.tv - independent free digital TV advice .
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R
Roy10:30 AM
I used the frequency link in your response to my question about Crystal Palce and an out of band frequency (43). What is happening to all the starred frequencies that are in use before the switch over ? What is wrong with using them after the switch ?
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Monday, 7 February 2011
D
Derek9:49 PM
I live in KT7 & use (so far as I know) the Crystal Palace transmitter. TV is Panasonic with inbuilt Freeview box. Roof aerial about 18 months old. TV has a signal strength & condition indicator. On all channels the strength is always fine, but intermittently on some channels (normally including ITV 1 & Channel 4) the condition indicator goes into the red or fluctuates between red & low orange.
When that happens there is intermittent break up of picture & sound. I also have a Humax PVR & the break up on the recordings is far worse than on the TV picture.
I have checked all the things you mention for intermittent reception problems & none apply (making sure all motors etc. are switched off does not alter the condition). This evening (7 Feb.) the problem was severe from 7.30 or before up to about 9.30, when suddenly - without anything being done at my end - the condition indicator improved to high orange/green.
I find this infuriating. I can't see that it can be anything to do with other equipment in the house. Have you any ideas as to what might help please?
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Derek: At the moment, the problem is the high pressure causing Inversion - see What is the Inversion Effect and why does it effect my Freeview TV reception?
| ukfree.tv - independent free digital TV advice . This won't be a problem once switchover is complete.
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