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Errors in aligment procedure in a E4446A

Question asked by theamberco on Jul 18, 2016

I got alignment errors as indicated in the picture. I replaced the internal battery put the right date and I cleaned the 33325-60009 and the 33326-60009 attenuators and sometimes I dont get the 40dB step error. Do I need to replace both of these modules, This equipment have seen heavy use it has the versión A.11.18. What about the measure Comb error?

I did set the internal ref. 10Mhz out  and connected a cable to the ref out and did the aligment procedure align all.

Any help would be appreciated.

Mike.

aligment erros.jpg

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