R-antenna is a resonant frequency system that needs to be reflected back to the source.
It can be used to tag airplane tracks that would appear on the radar as bright luminous spots, showing the outlines of the track or the road – regardless of darkness or fog.
With R-antennas it is possible to map out coastal lines and ships’ sailing routes to harbors, to mark shallow waters, riffs and other dangerous areas in river and maritime sailing.
R antenna can be used to cover dead zones in GSM networks.
