Freeview Light on the Patcham (Brighton and Hove, England) transmitter
|Google map||Bing map||Google Earth||50.868,-0.128 or 50°52'6"N 0°7'42"W||BN1 8SE|
The symbol shows the location of the Patcham (Brighton and Hove, England) transmitter which serves 4,300 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 problemsThe BBC and Digital UK report there are no faults or engineering work on the Patcham (Brighton and Hove, England) transmitter.
Which Freeview channels does the Patcham 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.
Are you trying to watch these 43 Freeview channels?
The Patcham (Brighton and Hove, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4seven, 5Action, 5STAR, 5USA, Al Jazeera Eng, Blaze, Blaze +1, CBS Reality, Challenge, Channel 5 +1, CITV, YAAAS!, Dave, Dave ja vu, DMAX, Drama +1, E4 Extra, Film4 +1, Food Network, GB News, GREAT! movies, GREAT! movies action, HGTV, HobbyMaker, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Legend, PBS America, pick, Pop Player, Quest +1, Quest Red, Really, Sky News, Smithsonian Channel, Talking Pictures TV, TCC, That's TV (UK), Together TV, W, Yesterday +1.
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 Patcham transmitter?
BBC South East Today 0.8m homes 3.2%
from Tunbridge Wells TN1 1QQ, 40km northeast (41°)
to BBC South East region - 45 masts.
How will the Patcham (Brighton and Hove, England) transmission frequencies change over time?
|1984-97||1997-98||1998-2012||2012-13||19 Jul 2018|
|B E T||B E T||B E T||B E T||A K T|
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 7 Mar 12 and 21 Mar 12.
How do the old analogue and currrent digital signal levels compare?
|BBCA, D3+4, BBCB||(-6.9dB) 14W|
Which companies have run the Channel 3 services in the Whitehawk Hill transmitter area
Dave: Because they're not actually comparing like with like.
It's stated that analogue transmissions require 43 dB of signal-to-noise ratio - about 20,000 times the power from the signal compared to the interference - for perfect reception.
Simulations show that error-free digital reception only requires 17.3 dB signal-to-noise ratio - about 0.27% of the analogue difference. However, this is the absolute minimum required: any lower, and the picture and sound start to break up. The broadcasters' statistics show that, to provide reliable results, the signal needs to be about 12.8 dB higher. They've also added about 6 dB of fudge factor (i.e. nearly 4x power levels), making for 36 dB in all.
This 36 dB of signal-to-noise ratio is 7 dB less than the required analogue level, so in general, levels have been set 7 dB lower than the analogue levels, or one-fifth of analogue power. This is the same right across the country, except that the south-east coast transmitters have been set higher to provide extra resilience to signals from continental Europe, or perhaps reflecting better aerial systems that send relatively less signal overseas.
Experience seems to be showing that the 6 dB fudge factor is unnecessary and levels could have been set lower. In effect, the digital coverage areas are actually larger than the analogue ones.
|link to this comment|