Good morning friends,
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?Forgive me for the lack of experience to write here in the group, I have an HP8920B and it stayed for 6 months measuring 4db above in spectrum analyzer mode.?
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Suddenly one day i turned on the 8920B and the measurements are back to normal. I believe that some RF relay had the contacts stuck and after 6 months the contacts returned to work normally.?
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It's been almost 2 years and the HP9020B is still working perfectly.
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Forgive me for the bad english.
