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ESA E4407B ticking sound trouble

Question asked by TomasK on Jun 25, 2020
Latest reply on Jun 29, 2020 by TomasK

Hello,

I recently got an ESA E4407B analyzer. From time to time I hear a faint creak or regular ticking from inside the unit. It happens at the end of (but not everyone's) sweep. To hear it more clearly, I changed the sweep time to 1s. I Will be grateful for any idea, what could be the cause, or is it a some sign of a possible failure? The analyzer passes all the internal test and measures as specified.

Many thanks in advance!

Thomas

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