This chapter describes the file management features of the VNA Master and describes the File menu. The submenus under this menu allow you to save, recall, copy, and delete files in the internal memory or an external USB flash drive.
File Types
Following are some filename extensions that are used in the VNA Master. Some file types are option dependent and may not appear in your instrument.
*.txt Text file with tab separated values, filename.txt
Note
S2P is a standard ASCII text file format that is used for scattering parameters from a 2‑Port measurement. This is a subset of SnP (where n equals the number of ports). An S2P file can be used as input for signal analysis. The VNA Master generates S2P files even for one-port measurements by filling the unused columns with zeros.
The CSV and Text files contain setup information and final formatted data that are shown on the instrument display screen. This file information includes any post‑processing that was done on the data (smoothing, trace math, time domain, and so forth). These files contain the data for any traces that are displayed, including the memory traces. They also contain the markers that are turned on when the file is saved.