SA Measurement Issues - Understanding Amplitude Accuracy
A review of common sources of errors with a focus on mismatch uncertainty, which can be a significant contributor to total measurement uncertainty.
About this course
The introduction of digital IF and signal processing in modern spectrum analyzers have reduced many of the common sources of errors affecting amplitude accuracy. A review of these common sources of errors with a focus on mismatch uncertainty due from the input impedances of the spectrum analyzer and DUT. This error may have been commonly overlooked due to its relative contribution, however, it now can be a significant contributor to total measurement uncertainty.