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Alfred P. Neves - WRT
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Re: Day 1: What Is an S-Parameter?
Alfred P. Neves - WRT   1/20/2014 1:06:49 PM
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do you find any diffculties with low frenqency part measurement

 

ans:    The coupler in VNA has directivity issues at lower frequencies, so yes we do and I have examples of this in later day of simple validation of low  frequency calibration validation.    Low frequency issues are a large percentage of problems, especially for causality and passivity.



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