The ShockLine MS46121A Series is a 1 Port USB controlled VNA (Vector Network Analyzer). It is available in two frequency options from 40 MHz to 4 GHz and 150 kHz to 6 GHz. It provides performance and accuracy for 1 port measurements in a low cost and compact solution that can connect directly to the device under test. This series of VNA's can be controlled via USB by the ShockLine software installed on any PC. Up to 16 independent MS46121A VNAs can be operated in parallel from the same computer running ShockLine software (using a USB hub). These VNA's are ideal for RF and microwave applications in manufacturing, engineering and education.