Try R&S documentation especially the booklet:

Measuring EMI and wanted signals.

It was published quit a long time ago, but they might want to make you
a copy...

Your headroom is exactly equal to their numbers.

regards

Gert Gremmen

-----Original Message-----
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of J.Feldhaar
Sent: donderdag 29 november 2001 18:39
To: emc-p...@majordomo.ieee.org
Subject: EMI receiver desensitization and amplitude overhead



Hi all,

this is my first post to the list. Greetings to all!

I am looking for a URL or graphic that shows the headroom necessary for
correct QP emi measurements using an EMI receiver.

If my information is correct, there must be up to 43.5 dB in excess of
the measurement range for measuring Quasipeak signals correctly,
decreasing when pulse frequency approaches 1 KHz.

I am looking for a source of information or a picture of this graphic.
Note: There are three curves, one each for 200 Hz, 9 KHz and 120 KHz
resolution bandwidth.

Help will be appreciated.

Greetings from ice-cold Germany,

Jochen Feldhaar DH6FAZ

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