I have read other forums about this, but none really seemed to fit.
How about some real installation experience.
Receiver: Icom R75, Antenna: Falcon OUT-250B (WSPR band hopping)
Transmitter: QRP U3S, Antenna: Falcon Out-250B (WSPR band hopping - 300Mw, later 3.0W)
xmtr antenna might decide on a Fritzel GPA 50.
At the moment I could get maybe a 60 foot separation between, but 30 feet would be a lot more convenient.