AnsweredAssumed Answered

E8363B Mixer Source unleveled PL Lost at same time

Question asked by Zee on Sep 12, 2012
I am trying to make SC21 measurement , but when I select Trace->New Trace-> Application -> SMC /mixer measurement ->SC21 then PNA immediately shows message source unleveled at the same time Phase lock lost . I set mixer parameters , try to calibrate but pl lost remains same and system could not orient cal kit. 
Images are attached; I just want to measure SC21 conversion loss
Kindly tell where my mistake is .
Further tell me when NA should turn on RF power of External source.