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E4407B Stimulus Response w/offset?

Question asked by crazie on Aug 1, 2008
Latest reply on Sep 5, 2008 by jborges3

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I won't have the analyzer in front of me again until Monday and couldn't find anything in the .pdf.

I'd like to know if the 4407B can do an offset stimulus response measurement (i.e. measure 500MHz and stimulate 600MHz). I know there are PSA models that can do this, but wasn't sure if the 4407B can do it.

Any help here would be greatly appreciated.

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jborges3 Sep 3, 2008 5:07 PM
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Hello crazie,

Unfortunatly there is no way to set the ESA tracking generator frequency to be offset from the SA frequency.

You are right about PSA, with an external source and source control option it has a lot of flexibility with making these types of measurements.
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Frank_BR Sep 5, 2008 5:49 AM
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What about using a mixer between the TG and the DUT, or between the DUT and the SA, to shift the frequency?
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jborges3 Sep 5, 2008 2:20 PM
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It all depends on the application. The mixer idea could work if you've got a mixer and an extra source to drive the LO. I'm curious about the original application now.

Speaking of sources, in the past I've written programs that make measurements like this with a SA and an external source to do the work of the TG. Then I processed all the data in my program. That's another option for you.
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E4407B Stimulus Response w/offset?

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