SAs can be confusing to a newbie, definitely. Whatever your reference level
is, that's what's at the top of the screen. So if you want to feed it a 0
dBm signal and observe it at the top line of the graticule, your reference
level would also be 0 dBm. RBW and span width should not matter because you
are looking at a CW signal and not noise or a broadband-modulated signal.
Keep your sweep time selector on AUTO and the analyzer will pick the right
RBW for a given span.
Seriously: read the ops manual, and also this:
-- john, KE5FX
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-----Original Message-----
From: TekScopes@... [mailto:TekScopes@...]On
Behalf Of Chris Johnson
Sent: Friday, February 09, 2007 6:57 PM
To: TekScopes@...
Subject: [TekScopes] I should know this but I want to be
sure...regarding 492 SA
I just want to double-check some basic assumptions regarding the
operation of a 492, or any spectrum analyzer, for that matter.