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Gate shaping

Question asked by roybag on Jun 21, 2009
Latest reply on Jun 21, 2009 by Dr_joel
I am a test technician using an Agilent 8722D VNA and testing mostly hi-freq(1-40 gig) coax and semi-rigid cables.The 8722 has the ability to do gate shaping(min,normal,wide,max).Since we use a lot of different adapters in testing we need to use gating to gate these out of our VSWR S11 and S22 testing.Right now we only use the normal setting, but have  found that switching to min, max or wide can produce better results. Can anyone explain exactly what and how gate shaping works and when to use it other than in the normal mode to test product if at all.