Heuermann introduces an easy and rapid one- or multi-port (n-port, n = 1, 2, 3, …) calibration of Vector Network Analyzers (VNA) up to 18 GHz. The calibration is quite simple. The number of ports is unlimited. Only for the calibration: RapACal will be controlled over VNA-internal PC interface (LAN and USB) with a graphical user interface from a windows operating system (NT, XP, Vista). Price: 5900€