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Phase Linearity Measurement of Sweeper

Question asked by tonyengineer83 on Feb 4, 2016
I'm trying to measure the phase deviation from ideal-linear phase of a Direct Digital Synthesis (DDS) based synthesized sweeper using either a PNA-X or an E5052B SSA.   I hoped to use my DDS signal as the reference phase then compare it to the phase of the final upconverted signal.   How would I go about doing this using a PNA-X or SSA?

Thank you!