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Randomized LO question?

Question asked by mindhen on Aug 12, 2020

With  vnahelp,the spectrum mode is to achieve image reject by using multiple LOs to cover the same frequency band.If Randomized LO is checked,the frequency interval between any two LOs is a random value,,and the discrete spectral lines of the fft results of the two LOs may not be matched.

How to perform image reject to ensure that the spectrum at a certain frequency point is correct?