[Test-Equipment] HP 141T spectrum analyzer question

Chris Trask Chris Trask" <[email protected]
Mon, 30 Dec 2002 18:43:30 -0700


On Monday, December 30, 2002 6:02 PM, J. Forster wrote:

> greg mijal wrote:
> 
> > However,  the straight line trace at the bottom of the screen
> > is no longer flat.  It has a series of bumps in it and they
> > walk accross the screen while the analyzer is scanning. ..........
> 
> Try varying the sweep time and see if the bumps move at a
> differrent rate. It smells like a filter cap that has dried
> out, has reduced capacity, and is causing ripple on a power
> supply to me.
>

    Yes, very likely.  Check the high voltage supply first.

Chris 

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