The lux is about 2x the size of a smart phone has a range of 50" it's really neat.I cant foresee a group of US soldiers (or any other soldiers) in an urban conflict zone carting around 21 antennas that HAS to be in a "line of sight" position, just to view some terrorists lurking behind a concrete wall, that more than likely be much thicker than the radar penetration distance of a mere 8 inches!!..
There is also another problem...Buildings made with reinforced concrete that contains metal bars and wire, would prevent that very low powered radar getting through it, by acting as a Faraday Shield...I compare the present "see through concrete walls" technology, to that of the very early mechanical Television tests in 1925, engineered by John Logey Baird, that was ultimately doomed to failure!! ..