The Wilson 901141 Window Mount is designed to allow you to use a panel antenna in place of an exterior antenna. This is a good solution for tenants, apartment dwellers, or college students who do not have access or the rights to install an antenna outside.
The mount requires no installation - it has 4 large suction cups which secure the antenna in place. When placing the panel antenna in to the mount it needs to be facing the window, and therefore facing outside the building, in the direction the cell signal is coming from. The mount is designed for indoor use only, and should not be installed outdoors. The mount is lightweight and sturdy, and installs in just a few minutes.