Any DIY suggestions?

Thanks

As others have said, get a second aerial and direct it at the other
transmitter, and combine the outputs from the two aerials. But it's
not that simple in practice. I was / still am thinking of doing this
for myself. There's a recent thread on uk.tech.digital-tv entitled
'Coax Y adapter query' where the pitfalls and correct way of doing it
are discussed at length.


Quite .. but you need to know what transmitters you are trying to
combine.

And where they are located and where you are located relative to them..


--
Tony Sayer