Freeview Light on the Greenwich (Greater London, England) transmitter
 | Google map |  | Bing map |  | Google Earth |  | 51.484,0.026 or 51°29'3"N 0°1'35"E |  | SE7 7NJ |
The symbol shows the location of the Greenwich (Greater London, England) transmitter which serves 2,200 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 Greenwich (Greater London, England) transmitter._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
H/V: aerial position (horizontal or vertical)
The Greenwich (Greater London, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: U&Yesterday, 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, DMAX, E4 Extra, YAAAS!, Film4 +1, Food Network, FRANCE 24 (in English), GREAT! action, GREAT! christmas, GREAT! movies, GREAT! romance mix, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, Quest +1, Quest Red, Really, Sky Mix, Sky News, Talking Pictures TV, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, U&Dave, U&Dave ja vu, U&Drama +1, U&W.
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which Freeview channels does the Greenwich 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.
| Mux | H/V | Frequency | Height | Mode | Watts |
| PSB1 BBCA | V max | C40 (626.0MHz) | 45m | DTG- | 3W |
 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 | |||||
| PSB2 D3+4 | V max | C43 (650.0MHz) | 45m | DTG- | 3W |
 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), 71 That’s 60s, | |||||
| PSB3 BBCB | V max | C46 (674.0MHz) | 45m | DTG- | 3W |
 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 | |||||
Are you trying to watch these 44 Freeview channels?
The Greenwich (Greater London, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: U&Yesterday, 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Al Jazeera English, Blaze, Blaze +1, Challenge, Channel 5 +1, DMAX, E4 Extra, YAAAS!, Film4 +1, Food Network, FRANCE 24 (in English), GREAT! action, GREAT! christmas, GREAT! movies, GREAT! romance mix, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, Quest +1, Quest Red, Really, Sky Mix, Sky News, Talking Pictures TV, That's 90s, That's TV 2, Together TV, TRUE CRIME, TRUE CRIME XTRA, U&Dave, U&Dave ja vu, U&Drama +1, U&W.
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the Greenwich transmitter?
BBC London 4.9m homes 18.4%
from London W1A 1AA, 12km west-northwest (287°)
to BBC London region - 55 masts.
ITV London News 4.9m homes 18.4%
from London WC1X 8XZ, 11km west-northwest (293°)
to ITV London region - 55 masts.
How will the Greenwich (Greater London, England) transmission frequencies change over time?
| 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 21 Mar 2018 | |||||
| C/D E T | C/D E T | C/D E T | B E K T | B E K T | |||||
| C40 | BBCA | ||||||||
| C41 | D3+4 | ||||||||
| C43 | D3+4 | ||||||||
| C44 | BBCA | ||||||||
| C46 | BBCB | ||||||||
| C47 | BBCB | ||||||||
| C48 | C4waves | C4waves | C4waves | ||||||
| C50tv_off | BBC2waves | BBC2waves | BBC2waves | ||||||
| C52tv_off | ITVwaves | ITVwaves | ITVwaves | ||||||
| C56tv_off | BBC1waves | BBC1waves | BBC1waves |
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 | 15W | |
| BBCA, D3+4, BBCB | (-7dB) 3W |
Which companies have run the Channel 3 services in the Crystal Palace transmitter area
|
|
Sunday, 16 December 2012
B
brian manley12:31 PM
London
Any idea why this transmitter has changed channels to D41, D44 and D47 post switchover?
It used to broadcast on 48,50,52 and 56 so people now require a new aerial if they had a C/D before.
In addition, it is now co channel with Sudbury. I am new to the area but have already seen a few aerials pointing there (probably years old, put up before Greenwich opened).
The owners must of had no digital signal then suddenly it appeared last year when Sudbury powered up, then went again this year when Greenwich switched and the 2 signals knocked each other out...
| link to this comment |
brian's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
brian manley: Some may need a different aerial but some will likely get away with the C/D one (or not notice).
In answer to your question, I should imagine it's to fit in with other transmitters.
This page might be useful:
C21 (474.0MHz) before switchover | ukfree.tv - 10 years of independent, free digital TV advice
However, reception of all channels from Crystal Palace might be possible at your location as the Digital UK predictor suggests and Streetview shows aerials pointing in that direction.
| link to this comment |
brian manley: One thing that is probably a factor in Greenwich not being given C/D channels post switchover is the ring-fencing of 61 to 68 to be sold off to the 4G mobile operators. Thus, useable C/D is now smaller than it was, in much the same fashion as useable A is now smaller due to ring-fencing of 31 to 34 (or 31 to 37 if you count 35 and 37, previously channel 5 only and 36, previously silent).
| link to this comment |
brian manley: I have drawn up the following list of transmitters that probably overlap with Greenwich to some degree:
48H Kensal Town
49H Alexandra Palace
50V Lea Bridge
52H Kensal Town
53V Woolwich
54H Alexandra Palace
55V Lea Bridge
56H Kensal Town
57V Woolwich
58H Alexandra Palace
59V Lea Bridge
60V Woolwich
The others seem definately likely, but I included Lea Bridge as it was the only other one that fitted in. It is definately a "maybe" as it's only 2W and not directed towards Greenwich. The only thing we do know is that it wasn't co-channel with Greenwich pre-DSO and isn't co-channel now.
| link to this comment |
J
jb383:38 PM
brian manley: If I could just add to what has already been said, insomuch that its unfortunate that you have just moved into the area because if anyone receiving Greenwich on pre-changeover frequencies was doing so with a signal level of around 55% or above then there was no need for them to change aerials, as in practical terms the signal level difference with the change of frequency would under normal circumstances be quite insignificant.
This really applies to any similar types of situations, as its only in cases where a persons reception is inclined to be on the iffy side that strict adherence to aerial band groups really makes any difference, although I will admit that even in iffy cases the difference in levels seen is always more significant in situation where reception is at a lower frequency than the aerial is designed for, such as applies in your case and why I qualified what I mentioned by stating the 55% and above level.
| link to this comment |
Tuesday, 18 December 2012
B
brian3:10 PM
Thanks to both of you for your reply.
Dave, excellent detective work on Lea Bridge and thanks for taking the time to look on Streetview for me. You are right, all the aerials near me look at CP (although there are even 1 or 2 looking at Poplar close by).
There is not a problem at my location with CP reception (although its not great).My main problem is I moved into the house and someone has chopped the coax off at the window frame so I have now connected it up to a fly lead going to the TV with a pin till I can figure a better solution!
I take your point on a lack of C/D frequencies too. Add to the possible nuisance list Hemel on 50,55 and 59 and Sandy on 48,51 and 52 and there may be not much space that (now squashed) end of the band!
A bigger problem I think would be that a fair few of the relay aerials installed have been done so horizontally (in error I presume) so when there is a lift Sudbury may knock the signal out unless you are right on top of the relay.
I still cannot help but think Sudbury would cause more of a problem than a 2 watt transmitter 6 miles away.
I wonder if SFNs work for relays. If so, just as easy to have made Greenwich 53,57 and 60 with Woolwich.
| link to this comment |
brian: There are a few horizontally polarised relays; Kensal Town and Alexandra Palace are both so.
Probably two male F-connectors with a back-to-back female adaptor covered in self amalgamating tape to waterproof it:
Satellite, Television, FM, DAB, Aerial, Coaxial Cable, Plugs, Sockets, Connectors & Leads
Make sure that it is covered entirely and that no water can get in.
| link to this comment |
Wednesday, 19 December 2012
B
brian4:32 PM
Thanks Dave.
Agreed there are a few horizontal relays around London due to frequency clashes. My point was that there are a fair few horizontal aerials looking at Greenwich which should of been put up the other way round !
The F connector solution came a couple of hours too late. Bloke turned up with masonary drill this AM and my Dad gave him £55 for his efforts. (Girlfriend was getting restless over pixilated xmas viewing but thanks anyway).
| link to this comment |
Thursday, 20 December 2012
B
brian8:38 AM
I checked all 6 CP MUX's last night after the rigger had connected it up (looks like he did what Dave suggested) and signal levels are high but channel D26 (ITV etc) breaks up.
Could I ask :
Does digital suffer from multipath like analogue did (they are building big flats by the river near me)?
Is it at all possible that there is too much RF signal (it passes through a DVD which I think amplifies it at bit)? D26 is right in the middle of the 6 CP channels so could be getting splattered ? I put an amp on it and that made it worse.
Just do not want to spend £100 getting him round when I can spend £3? on an attenuator.
| link to this comment |
brian: I think that getting an attenuator would be the best bet.
You are only 5.6 miles from the transmitter and the terrain plot suggests that it might be visible from your rooftop. So yes, too much signal is a possibility.
| link to this comment |
Select more comments
Your comment please