Calibration Algorithms Available
The VectorStar MS4640B Series VNAs provide for the following calibration methods:
AutoCal
SOLT/SOLR
•	Short-Open-Load-Through (SOLT) with Fixed or Sliding Load 
•	Short-Open-Load-Reciprocal (SOLR) 
SSLT
•	Offset-Short (SSLT)
SSST
•	Triple-Offset-Short (SSST)
Broadband SOLT\R-SSST\R
•	Broadband Cal (SOLT\R-SSST\R)—Appears only with VNA in Broadband Mode
LRL/LRM/ALRM
•	Line-Reflect-Line (LRL) / Line-Reflect-Match (LRM)
•	Advanced-LRM (A-LRM™) for improved on-wafer calibrations 
mTRL
•	Multiline TRL
Reciprocal Measurements or Unknown Through
•	Reciprocal or Unknown Through Method