This was put up originally for analog signals. Now we have all gone digital would it be better to exchange it for a digital ariel? What is the difference between the two on sight. I know one uses amplitude and the other frequency modulation.
In fact I get annoyed when I see vans from aerial companies driving round offering their services and on the side of the van they say "Digital aerials".
As has been said, there is no such thing as a digital aerial and all aerials can pick up both analogue and digital signals.
As others have said, there is no such thing as a 'digital aerial'. If your digital signal is coming from the same transmitter as the old analogue ones you should not have a problem. If the signal is from somewhere else you will probably need to realign your existing aerial.