NSI-MI Technologies Antenna Reflectivity Analysis software package uses data taken on an antenna with a Reflectometer. The analysis accepts data files taken on calibration load, short and open conditions, along with the data collected on the antenna. The user can enter and store inductive and capacitive calibration parameters for the open and short test loads. The output of the analysis is a report or plot of reflectivity, return loss or VSWR versus frequency for the antenna. This analysis software is especially useful when making in system VSWR measurements of an antenna or radome.