GW Instek GSP-930 User Manual - Manual (Page 77)

BASIC OPERATION
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4. Select the trace math function:
PowerDiff[F3]
LogDiff[F4]
LogOffset[F5]
5. If LogDiff was selected, set the reference level
and unit.
LogDiff ref range:
LogDiff ref units:
-120dBm ~ 30dBm
dBm, W
6. If LogOffset was selected, set the offset level
and unit.
LogOffset range: -50dB~+50dB
7. To turn trace math off, press the OFF[F6].
Display Icon The Math icon is displayed when trace
math is turned on.
Trace Detection Mode
Description Each time the spectrum analyzer samples data
for each point on the trace, a number of samples
are usually taken for each point, known as a
sample bucket. The actual value of each point is
determined by the detector from the samples in
each bucket.
Each selected trace, (1, 2, 3, 4), can use a
different detection mode.