What Is Your Measurement AccuracyApplication Note What Is Your Measurement Accuracy? Vector Network Analyzer Introduction Vector Network Analyzers (VNA) are your primary resource when S Parameter information is required for RF and Microwave measurements. They are regarded as accurate measuring instruments; but, it is rare that a user takes a serious look at the quantitative accuracy performance of a VNA in a specific application. VNA specifications are a starting point; but, they are based upon very specific calibration and measurement conditions, which are not applicable for many of your applications. A Windows based program (Model No. 2300-361) is available to help you obtain the uncertainty data that is appropriate for your specific application. In 1999, the international standards, ISO/IEC 17025, was published as t……