[LasVegasMac]

Elint

Designed to specifically monitor all modes of electronic transmissons - Electronic Intelligence (Elint) gathering.

Anything that produces any type of RF transmissions that can be captured....that is a lot of stuff - TV, CV radio, WiFi, military radio, cell phones, baby crib monitors - anything that is broadcast over the airwaves.

Rumor that a rombic antenna (huge ((acres of land)), diamond shape, highly directional) set up in Minnesota was listening to ground comm (hand held to hand held and hand held to base) in GW I.

No proof to give, but I am a licensed operator and understand the concept completely. Very much possible.

[GOPJ]

An inventive rhombic antenna array structure is arranged to form a pyramid and is designed to operate with a beam forming network, enabling s shaped radiation patterns to be produced over a predetermined coverage/range. The resultant pyramid configuration advantageously has high inherent rigidity, providing scope for lightweight construction techniques. The antenna array structure finds wide application in space-based to systems as well as in ground-based systems.

Found this - is this what it would look like?