Freeview reception at B31 2QJ
Terrain between B312QJ 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.
Show good and blocked paths for aerial height of ...
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