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 TV region BBC London LondonWhich companies have run the Channel 3 services in the Crystal Palace transmitter area
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Thursday, 9 February 2012
Aerial Point: I don't think such a list exists. The changes to allow boxes to auto retune at switchover was added to the specification for Freeview (the so-called D-Book) quite some years ago.
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Adrian: It is most likely the SCART cable that connects your Freeview box to the set. Remove it from both devices and then reconnect it firmly.
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J
jb389:01 AM
Aerial Point: Just to confirm / back up Briantist's reply to your query insomuch that this is quite correct there isn't any list, and with so many variations in the menu facilities offered between the various brands (and sometimes across different models within) from basic primitive to quite sophisticated its not practical to make a note of them.
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A
Alex12:51 PM
Tadworth
Hello,
Recently moved into a new flat, and it picks up every single SD channel fine, however, it struggles with the HD channels.
When I first tuned it in the day time, it picked them all up, and the signal/quality were both strong. However, as soon as it got dark, it lost all signal/quality.
I have since retuned all channels, and it won't pick up any HD channels at all. Doing a signal check on channel 31 in the Manual install option gives 0% Signal and 0% quality, however every other frequency channel is around 70% signal, 100% quality.
Any ideas? Using a Humax HDR-FOX T2.
Postcode KT20 6SU
THanks all
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Alex's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
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KMJ,Derby1:43 PM
Alex: Although the Crystal Palace signal on C31 is predicted to offer reasonable odds on giving good reception on the HD services, the signal is at risk of interference from both Sandy Heath and Reigate at your location. When retuning at a time of receiving a poor quality signal (or no signal) the details of the HD channels would have been removed from the receiver's memory. Wait until 18th April 2012 for the high power HD service to start at Crystal Palace, otherwise, until that date keep looking at doing a manual tune on C31 to see if the low power signal has returned.
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Mike Dimmick2:22 PM
Alex: The HD channels are on lower power than the other multiplexes at present, and the multiplex also uses the same channel as one of the SD multiplexes from Reigate, at the moment.
This will change on 18 April: the HD services will move, taking over Channel 4 analogue's frequency, and be boosted to the same high power as the other multiplexes' new power levels - 20x the current power level.
Night-time does tend to cause interfering signals to travel further, something called 'tropospheric enhancement'.
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Friday, 10 February 2012
D
David12:29 AM
Alex. The HD channel is also at a higher bit rate, which means that it needs a better signal to noise ratio. This means that it is at a disadvantage of more than the factor of 2 implied by the relative transmit power, when compared with ITV multiplexes and even more when compared with BBC ones. It will still be at a disadvantage when it goes to full power in April.
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CRYSTAL PALACE transmitter - Analogue BBC ONE Off Air; DSO related from 00:26 on 07 Feb to 05:41 on 07 Feb BBC ONE Weak Signal from 05:41 on 07 Feb BBC ONE Weak Signal from 16:00 on 01 Feb to 00:26 on 07 Feb BBC TWO Weak Signal from 16:00 on 01 Feb [BBC] Over the next week Crystal Palace main transmitter: TV (analogue) Possible weak signal, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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CRYSTAL PALACE transmitter - Analogue BBC ONE Off Air; DSO related from 00:26 on 07 Feb to 05:41 on 07 Feb BBC ONE Weak Signal from 05:41 on 07 Feb BBC ONE Weak Signal from 16:00 on 01 Feb to 00:26 on 07 Feb BBC TWO Weak Signal from 16:00 on 01 Feb [BBC] Over the next week Crystal Palace main transmitter: TV (analogue) Possible weak signal, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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CRYSTAL PALACE transmitter - Analogue BBC ONE Weak Signal from 16:00 on 01 Feb to 00:26 on 07 Feb BBC ONE Weak Signal from 05:41 on 07 Feb BBC ONE Off Air; DSO related from 00:26 on 07 Feb to 05:41 on 07 Feb BBC TWO Weak Signal from 16:00 on 01 Feb [BBC] Over the next week Crystal Palace main transmitter: TV (analogue) Possible weak signal, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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