From: Jochen Feldhaar ([email protected])
Date: Thu Apr 27 2000 - 04:17:05 PDT
--- Jochen Feldhaar <[email protected]> wrote:
> Hello to the list,
>
> Hello Clewell, (sri for the first one...)
>
> I have seen a measurement hint by HP (Agilent...)
> some
> weeks ago where they determined the BW of an
> analyzer
> passband for equivalent power bandwidth.
> Substituting
> the filter in the analyzer for a less wide filter in
> front of the analyzer, the BW can be measured
> likewise. You use a pulse generator of constant
> amplitude and active pulse duration, and you measure
> the power obtained after filtering at various
> repetition rates of the pulse (only the time in
> between the pulses will vary, on an oscilloscope
> triggered on edge the pulses itself will always look
> alike independent of setting!)
> and you take one measure at 1/10 the suspected BW
> and
> the second at 3 times the suspected BW. Then you can
> calculate the equivalent BW according a formula they
> gave. If you are interested, I can fax you the
> article
> (it is in German, unfortunately), or contact Agilent
> for a copy.
>
> Greetings to all,
>
> (if it works, it is boring...)
>
> Jochen Feldhaar
> Telejet GmbH
>
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