Full Freeview on the Crystal Palace (Greater London, England) transmitter
 | 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.
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 11/11/2024 Pixelation or flickering on some or all channels 
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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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Saturday, 27 July 2013
J
jb388:51 AM
Anita: Yes, its rather ironical that by tuning to Bluebell Hill's 20Kw transmitter (C39) on you manage to obtain a good picture and yet the signal path from that station is indicated as being obstructed from 2.5 / 3 miles (although could be affected from 9 / see below), whereas reception from Crystal Palace (on 200Kw) and indicated with a clear line-of-sight is problematic, albeit of course that these indications are only with reference to the ground level and "not" anything on it, this including the dreaded trees!
However as far as your daughters TV is concerned, when you say "reverting back to C22" are you meaning because of it automatically updating channels? because if you do then go into the menu and under "Auto-Retune" select "Always Ask" then when it does at any time just cancel it.
If however you are not meaning the aforementioned then reset the box by reverting to using the "first time installation" procedure prior to manually tuning in the mux channels required.
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
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A
Anita1:48 PM
Done some investigating this morning and think i have found the problem seems the aerial points at blueberrey hill. If signals don't like trees not sure pointing towards London would work it would be looking straight into trees etc defiantly no "clear line-of-sight"
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J
jb383:56 PM
Anita: That will explain why you managed to obtain a good picture when tuned to that station even although its commercial channels are being indicated as being variable as far as reliability of reception is concerned.
But though you should try a test over a week or so with your equipment manually tuned to the Bluebell Hill transmitter and see how it goes, albeit I would be surprised if you did not experience any spells of picture glitching etc due to the fact of the signal from Bluebell Hill being received via diffraction, this being signal bending.
Bluebell Hills mux channels being /
46 (BBC) - 43 (ITV1) - 40 (HD) - 45 (ITV3 etc) - 39 (Pick TV etc) - 54 (Film 4 etc)
Remember to switch off auto-channel update on the various devices you use or you will land up with some channels from Crystal Palace being stored again.
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A
Anita5:01 PM
jb38: Guess I with have to become more accustomed to "manual tuning" here. I don't mind the odd glitch had a few of those in Newham on the plus side defiantly No manual tune was required.
Thanks for your time and help
I'm curious why does a freeview hd box require my postcode during setup??
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MikeP
5:34 PM
5:34 PM
Anita
Many Freeview boxes use your post code to determine which of the available local news services it sets as being your main programmes and which are to be 'secondary' (in the 800's). Example, if you live south of Oxford you might well want the South Midlands news as your main feed instead of the South services (sourced from Southampton studios!).
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J
jb388:21 PM
Anita: Yes! as the manually tuning in of a stations multiplexes is a procedure that's essential to master in areas such as your own where reception is possible from more than one station, as its the only positive way of being able to store what's actually required rather than a programme guide loaded with duplicate channels from stations that offer "iffy" levels of reception.
The problem though with manual being that there are a number of devices in circulation that do not offer this manual facility, the designers of these devices being rather blind as to the circumstances that their boxes are liable to be used in, whereas on the other hand there are owners of boxes that do offer an excellent manual tuning facility but they themselves have great difficulty in mastering it, yourself in my opinion, based on that said in your replies, "not" coming into this category.
I realise that MikeP has answered your query with regards to a post code being required, but though I personally do not necessarily approve of a post code system for Freeview boxes as this can cause problems for many people that reside on the doorstep of another region and prefer to view the news etc from that region, myself having a preference for the more usual "choice of area" box that pops up after having completed an auto-tune (not on all boxes though!) by the fact of "area choice" being up to a point self explanatory for viewers of a less able disposition.
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Tuesday, 30 July 2013
R
Rob6:41 AM
Reading
Rob: Hi Jb38 sorry for long delay... had a nasty accident was in hospital.. anyway just to confirm the I do get BBC Oxford news and ITV meridian news from Oxford..However i get BBC south and ITV from Hannington but not that great as it comes in the back of my tv aerial that's pointing to Oxford.. its a triple stacked array type aerial i got from screwfix for 19.99... it works well with 26db mast head amp and power box. works well for 3 years so far......Bear in mind i am at the bottom of the village and i have a massive hill at the back of my house where hannington is coming in.. which is impossible to get a decent signal unless i get a aerial tower of 60 foot up lol. I wanted to combine London as i am deaf... the subtitles would often drop out either bbc or itv i can change region then get subtitles back... it was the same problem when we had the old anolougue tv via 888 on teletext.
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Rob's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
J
jb3811:04 AM
Rob: Sorry to hear about your misfortune and hope that you are on the mend!, me having put the gap in continuity down to you possibly trying some experiments prior to giving an update on the situation.
However on reading all you have said as far as your reception is concerned and from where, and when taking this into consideration along with the fact that the reception you do manage to achieve from these stations is only via diffraction (signal bending) plus an element of reflection, both of usually bringing the summer and winter effect into the equation, I now feel that rather than use any multi element high gain aerial (high gain only under correct conditions) I would be far more inclined to remove the triple element aerial and try either a reasonably flat response DM log, or if Crystal Palace is also being catered for then a Log 40 would be best.
The reason for the change being, that in my experience logs used in conjunction with a high gain amplifier generally give excellent results over any other type of aerial when used in difficult reception areas, this basically due to the fact of them not being quite so sensitive to slight variations in the reception angle of the signal being received and something that is always experienced in situations such as yours, and the reason why that if an aerial is installed in one season and then alignment checked in another its nearly always found that it requires slight trimming to the left or right to return it to perfect alignment, albeit that the perfect alignment is short lived!
Of course most are totally unaware that this effect exists!, but its something that can even be experienced in some areas when a transmitter switches to high powered operation and which can have a knock on effect as far as the reflective element of the signal being received is concerned, a few in my own area having found that their aerials had to be turned nearly 10 degrees to the right when Waltham had switched to high powered operation to regain peak reception.
The only problem I have ever found with logs being the a psychological one, insomuch that many equate large pieces of metalwork as somehow being superior for reception, that is until it gets down to viewing the result of what they consider as being a "dinky toy" aerial, or that they are over influenced by reading aerial gain specifications, all of obtained when the aerial is being tested under perfect short distance line-of-sight conditions, these never the same as in real life situations.
Terrain indications showing the signal path obstructions from both Oxford and Hannington.
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
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Wednesday, 31 July 2013
K
Kevin4:45 PM
Farnborough
Hi
I live at GU14 6PW and have always received Freeview from Crystal Palace via my loft aerial with booster. Recently, I have lost the channels from the frequency C22 and C23 (hence all the BBC channels) although the other 3 (or 4 on the HD TV) are fine. I have tried bypassing the booster and have the same problem. Why would some channels be affected and not others? Could it be linked to some 4G interference?
I appreciate that loft aerials are not the best option, but as I use Sky for 95% of my viewing, I am not keen to pay for an aerial upgrade.
Amy advice or thoughts will be gratefully received.
Thank you.
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Kevin's: mapK's Freeview map terrainK's terrain plot wavesK's frequency data K's Freeview Detailed Coverage
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