For an extra signal boost when a roof-mounting antenna isn’t possible, opt for the SureCall Signal Catcher Window Mount Antenna. 
SureCall Signal Catcher Window Mount Antenna
For an extra signal boost when a roof-mounting antenna isn’t possible, opt for the SureCall Signal Catcher Window Mount Antenna. This device makes for an easy install and is fully compatible with Fusion4Home, Fusion5s, Fusion5X, and Force5 boosters. 
Important Note - Compatible with Fusion4Home, Fusion5s, Fusion5X, and Force5 boosters. For indoor use only.