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What are the Output Levels at ports J2, J3 and J4 of A29 5087-7058 20GHz Doubler module, while J1 RF In is around +7.5 dBm from YTO?

Question asked by tannert77 on May 9, 2016
Latest reply on Aug 23, 2016 by EricBaker

Hello All,
Our 20GHz E8257D has failed because of PS problem and I found out some boards (A6 Frac-N, A8 LB Output) failed, too. I repaired them but stuck on only one board which is A29 20GHz Doubler module. I want to make sure if this A29 has failed, before I order new one. When I apply YTO signal which is around +7.50dBm@10.95GHz, to J1 RF In of A29, I get results as below in same frequency of YTO (Unit is in CW mode and Frequency is set below 3.2GHz):

J2 RF Out: No signal
J3: -47dBm

J4: -7.50dBm


Could you please help me, how to make sure if this A29 has failed (I don't have spare one)

Thanks in advance.



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Board Functional Test