Freeview reception at PGSTAR T10
Terrain between PGSTART10 and Freeview masts
For reliable and stable Freeview reception, you need an unobstructed path between the TV aerial on your roof and the digital TV transmitter.The diagrams below show the transmitters you can get a signal from - in order from best to worst. The blue line tests the line-of-sight between an aerial 10 metres above ground level (the line is red if there is an obstruction in the line-of-sight). You may be able to improve reception by raising the aerial higher - for safety's sake consult a reputable aerial installer if you need rooftop access. See below the diagrams for advanced options including selecting the receiver aerial height.
The terrain information (from Ordnance Survey and GIS) does not include forestation (where leaf cover changes with the seasons) or city buildings. The line-of-sight line can appear curved as this straight line moves over the Earth's surface.
When you click on a diagram, you will see map with the location selected shown with this symbol:
.What do the map symbols mean?
location on line-of-sight, Selected location, Freeview transmitter, Freeview light transmitter, Engineering/fault today.Advanced options
Show good and blocked paths from PGSTAR T10 for aerial height of ...10m20m (Angel of the North)25m30m40m56m (Hyde Park Flats, Sheffield)62m (Monument)90m (Royal Liver Building, Liverpool)107m (Meridian Quay Tower, Swansea)115m (Bridgewater Place, Leeds)127m (Glasgow Tower)143m (Guy's Hospital)158m (Blackpool Tower)170m (Spinnaker Tower, Portsmouth)180m (The Gherkin/BT Tower) 193m (Tower 42)235m (Canary Wharf)310m (The Shard)(default view)
Tuesday, 7 May 2013
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Charlotte6:54 PM
St. Ives
I live in St Ives, Cornwall and receive my signal from Caradon Hill transmitter. Myself and others in this area have hardly had any channels for the last 3 days, it is worse in the evening. It says that there is no fault with the transmitter. Please help/advise.
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Charlotte's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Pete Green: At one point, there was an option to see traces to other transmitters, but I removed it because it simply caused confusion.
If you would find it useful it could be a possible "advanced option".
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Charlotte: Can you please see, in the first instance, Freeview reception has changed? | Freeview Interference | ukfree.tv - 10 years of independent, free digital TV advice ?
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emma9:13 PM
Sheffield
have completely lost signal in s3, first bbc channels disappeared, have tried retuning and tried different cable and tv! live in the city centre in block of flats, is this a fault? everywhere i have looked to check doesnt seem to update!!!
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emma's: mapE's Freeview map terrainE's terrain plot wavesE's frequency data E's Freeview Detailed Coverage
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jb3811:35 PM
emma: If you reside in a block of flats then the obvious question would be if you as yet have checked with any of your neighbours to find out if they are also experiencing problems, because no faults are seen listed on the transmitter engineering page.
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Wednesday, 8 May 2013
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Barry7:24 AM
Bristol
Still having problems in BS35 2YH with signal mostly lost but have it for either half an hour or an hour a day, starting and finishing on the half hours. Any advice?
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Barry's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
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Steveeboy12:26 PM
Nottingham
Would it be possible to receive signals from a horizontal main transmitter even if you are located in a vertical area using a Wideband aerial with suitable range? I mean, are there certain areas where pointing at a vertical transmitter is the only option? In Nottingham we have the Nottingham transmitter which is vertical and Waltham which is horizontal but because Waltham is so powerful I don't understand why the Nottingham transmitter is required. How much of the country now relies on these vertical transmitters?
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Steveeboy's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
Steveeboy: The reason why Nottingham is required is probably because there are areas where Waltham isn't. This is likely to be due to the terrain, which blocks reception from Waltham.
As with any transmitter, there are places of overlap. Study the coverage maps on this site for the two transmitters. You will probably find that the gaps correspond to drops in the terrain.
The main, high power transmitters are horizontally polarised, except for Rowridge which, since switchover, uses mixed polarisation. The majority of relays are vertically polarised.
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Pete Green2:44 PM
Weston-super-mare
Briantist. I would find it handy but I'm the odd one out.
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Pete's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
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Steveeboy3:27 PM
Alfreton
Thanks Dave. So, my next question is regarding the need to have an aerial which can be positioned horizontally and vertically for instance when touring in a caravan? Most seem to only have the aerial set to horizontal in all sorts of different locations.
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Steveeboy's: mapS's Freeview map terrainS's terrain plot wavesS's frequency data S's Freeview Detailed Coverage
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