VANCO - SWR-2- Standing Wave Bridge- Made in Japan- Brand New

This meter comes with instructions. This was never used. In general terms, a standing wave is a pattern of oscillating energy that remains in a fixed position rather than traveling. It can occur, for example, when two waves of the same frequency and amplitude traveling in opposite directions interfere with each other. A standing wave bridge, or simply a bridge, is typically a structure that provides passage over obstacles.