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Calibration in frequency converter application

Question asked by Forumsadmin Employee on Oct 25, 2007
Latest reply on Oct 26, 2007 by Dr_joel
We have a setup using an E8363B VNA and external front-ends which we use to do waveguide measurements around 170 GHz.
The front-ends use an if frequency offset, to achieve high dynamic range. We have a home-built TRL calibration kit, and tried do a calibration, but the calibration does not work. 
Is it really possible to do a full s-parameter calibration with such a frequency converter?