The MS46122A is a series of three PC-controlled Compact ShockLine Vector Network Analyzers from Anritsu which operate from 1 MHz to 8/20/43.5 GHz. The 2 port compact VNAs have a sweeping speed of 220 us per point with a dynamic range of up to 100 dB and a directivity of 37 dB. They are low cost full-reversing VNAs targeted at RF and microwave applications in manufacturing, engineering and education. These VNAs are in packaged in a very compact 1U chassis and are externally controlled via USB from a user supplied PC running the same Graphical User Interface (GUI) software as the rest of the ShockLine family of VNAs.