Video: Reflection vs transmission accuracy in VNA measurement

Why is it that reflection measurements are typically only specified to -35 dB while transmission measurements are valid to -85 or -90 dB or more? This instructional video explores the reasons for this difference.

Why is it that reflection measurements are typically only specified to -35 dB while transmission measurements are valid to -85 or -90 dB or more? Brian Walker, senior RF design engineer at Copper Mountain Technologies, explores the reasons for this difference here.
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