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HP8569B question


 

Hi all,

Is here someone kind enough to help me with
my HP8569B? I got it today and I am little
confused with frequency span button.
Although it is marked up to 500MHz I can not
set it to span greater than 10 MHz. It seems that
it is somehow mechanically blocked, there is a
small plastic rod going from analyzer's front
panel towards the span knob and ending inside it.
I did little research and figured out that this
rod is actually the thing that blocks the span button
from being turned further than to 10MHz span.

Shall I press something or do some other action to
disable that blocking?

Thanks for any advice.

Michal Vanka

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