by six gun » Sat May 28, 2011 10:25 pm
I don't know the definitive answer but clearly if the transmitters in your area have gone digital you are trying to pick up a signal from a region still pushing out an analogue signal.
Logically you need a bigger aerial to catch the analogue signal.
I base that on the fact that in Spain I pick up the signal from the Astra satellite but because it is focussed on the more northerly parts of Europe so I need a much bigger sat dish than I would need in the UK. If I am trying to pick up wifi over a wider area I use a bigger aerial.
Now you may need to boost the signal and there is fairly cheap kit to do this.