Freeview Light on the Portishead (North Somerset, England) transmitter
|Google map||Bing map||Google Earth||51.484,-2.782 or 51°29'2"N 2°46'55"W||BS20 6LP|
The symbol shows the location of the Portishead (North Somerset, England) transmitter which serves 2,100 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 Portishead (North Somerset, England) transmitter.
Which Freeview channels does the Portishead 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 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
H/V: aerial position (horizontal or vertical)
Are you trying to watch these 61 Freeview channels?
The Portishead (North Somerset, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: 4Music, 4seven, 4seven HD, 5SELECT, 5Spike, 5STAR, 5STAR +1, 5USA, 5USA +1, Aljazeera English HD, BBC Four HD, BBC News HD, Blaze, Blaze +1, CBeebies HD, CBS Drama, CBS Justice, CBS Reality, CBS Reality +1, Challenge, Channel 4+1 HD, Channel 5 +1, CITV, Dave, Dave ja vu, DMAX, Drama, E4 +1, Food Network, Forces TV, Freesports, Home, Horror Channel, ITV2 +1, ITV3 +1, ITV4 +1, ITVBe +1, Quest HD, Movies4Men, NOW 80s, Now 90s, Paramount Network, PBS America, pick, Pick +1, Quest +1, Quest Red, Quest Red +1, Really, RT HD, Sewing Quarter, Sky News, Smithsonian Channel HD, Sony Movie Channel, Talking Pictures TV, TCC, Together, True Entertainment, True Movies, Yesterday, YourTV.
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 Portishead transmitter?
BBC Points West 0.9m homes 3.4%
from Bristol BS8 2LR, 12km east-southeast (103°)
to BBC West region - 60 masts.
How will the Portishead (North Somerset, England) transmission frequencies change over time?
|1984-97||1997-98||1998-2010||2010-13||27 Mar 13||2013-17||19 Jun 2019|
|E||E||E||C/D E||C/D E T||C/D E T||A K T|
tv_off Being removed from Freeview (for 5G use) by 30 June 2020 - 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 24 Mar 10 and 7 Apr 10.
How do the old analogue and currrent digital signal levels compare?
|BBCA, D3+4, BBCB||7.4W|
|Analogue 1-4||(-0.2dB) 7W|
Which companies have run the Channel 3 services in the Mendip transmitter area
Mat: Mendip, if possible, aerial horizontal.
The Portishead relay is on the top of Hanover House, although it carries PSB channels only. Aerials should be vertical.
Or Wenvoe which broadcasts PSB and COM channels, although carries the Wales regional variants of BBC One, BBC Two and ITV1. If Mendip is out and Wenvoe is therefore your only full-service transmitter, you could have another aerial pointing at Hanover House, either connected to a separate receiver or diplexed (combined) into one downlead.
For a list of services by multiplex (including which are PSB and which are COM), see:
DTG :: DTT Services by Multiplex
See ATV Sheffield's site for lots of information:
Mendip is all Group C/D so no wideband aerial is necessary. However, you may decide to get a wideband aerial just incase the authorities decide to change it all again so as to sell the spectrum off to the highest bidder...
Plus, if you get a wideband, it will also be suitable for Wenvoe (which is all Group B), should you find that Mendip isn't good enough.
If you are looking at receiving from Hanover House, then I assume that you can see its roof from yours, so a DM Log should do. Logs are wideband but have a flatter response than yagis. See here for examples:
Gain (curves), Again
I am wondering why your current aerial gives you nothing. Is there a fault that needs fixing and once it's fixed will give you the full service (if it points to Mendip)?
Even if it points to Hanover House, it will still be expected to give you PSB channels.
If your existing aerial points to Hanover House and you can get it working, then it's probably best to keep it as a backup. And if you find that Mendip isn't an option, you may decide to diplex it with one on Wenvoe.
It is worth looking to see where other aerials are pointing. Also, see if you can see anything that could be an obstruction that might be to the detriment of reception from your chosen transmitter.
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JRD: You've left out a crucial bit of information - which transmitter your aerial faces!
So your aerial picks up Welsh television. But does it face Wenvoe, which is the transmitter in Wales? If it does then the answer is to look at realigning or replacing with an aerial on a transmitter in England.
If your aerial faces a transmitter in England, but your receiver keeps tuning to Wenvoe then your question relates to how you can prevent your tuner opting for the 'wrong' transmitter.
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Many thanks Dave, I will check and may come back for some more help if it's facing the right way and still picking up transmission from Wenvoe!
Without meaning to sound too ignorant (this is my first encounter with TV aerials), would realigning it simply be a case of pointing the aerial in the general direction of the English transmitter?!
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