Can anyone give me some much appreciated advice. I am just about to move into a new flat that doesn't have a communal dish. I am worried that I won't be able to get a signal from my balcony. Other flats do have sky but I am further along the block and am worried that the building will block the signal. Is there any way I can check this out on my own (ie some device) or will I have to get an engineer in? Please help. Otherwise my plasma is useless!!