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VMC & SMC+Phase-Common 10 MHz Reference

Question asked by Andrew004 on Jan 6, 2017
Latest reply on Jan 16, 2017 by Dr_joel

Hi Keysight,


My group recently proposed a hardware adjustment that would cause the 10 MHz reference supplied  to the test system and DUT to get routed through a different path and introduce some delay. The delayed reference will be supplied to the VNA/DUT and not the sig gen supplying an LO signal (The DUT generates an additional embedded LO with the 10 MHz reference). My question is: will this small delay difference cause errors in channel to channel VMC phase measurements and group delay measurements?