I have them programmed into my scanner. The problem is, I can only hear when I travel in the appropriate direction which doesn't happen very much. I wanna be able to hear them from my bedroom somehow.
Depends on exact two points (signal origination and your reception location). But the basic idea is correct - the scanner can really only hear what its antenna "sees".
Interestingly, I rarely get the two counties but with BAD reception. Does it have to do with terriain perhaps? In Oregon I get much more than here in Seattle. Maybe an 800 antenna then...