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measure phase diff. of two external RF signals with VNA?

Question asked by randysl on Apr 12, 2011
Latest reply on Apr 13, 2011 by randysl
Hi all,

I got a PNA (E8361A) and I want to know whether I can use this PNA for measuring the phase difference of the two RF signals of the following circuit?


The frequency of the two RF signals are same and the two VCOs are driven simulataniously to keep the frequency of the two down-converted RF signals(RF1 & RF2) at a same frequency(1 GHz).

If this PNA (E8361A) can be used for that measurement, could you please explain me the steps I should follow to configure it?

Thanks & Regards,