A bi-static communication relay includes a receiver and transmitter carried by
different platforms. In particular, the transmitter may be carried by a geosynchronous
satellite forming a broadcast platform. The receiver is hidden on a low observable
platform, such as an airborne or even a ground based platform forming a hidden
platform. The location of the low observable platform is known only to legitimate
users of the system. Communications between the hidden platform and broadcast platform
are by way of a secure narrow beam uplink to reduce the risk of jamming. Physical
separation of the receiver and transmitter essentially defeats the jammer's high
power amplifier advantage since the receiver platform is hidden from the jammer.
This forces the jammer to use a low gain antenna in order to cover as much sky
as possible. System users, on the other hand, can use the gain advantage of a directional
antenna, since they alone have knowledge of the hidden platform's location.