Trace Math - Promax AE-166 User Manual

3.7.2

Trace Math

Description
►
Performs trace math from two traces (TR1, TR2) and stores the result in the
currently selected trace. It also performs trace shift.
Math functions
►

Power Diff: Subtracts the TR1 amplitude data from the TR2 amplitude
data. The TR1 data TR2 data are converted to watts. The result is
converted back to dBm.

Log Diff: Subtracts the TR1 amplitude data from the TR2 amplitude data
and then adds a logarithmic reference. Both the TR1 and TR2 data is in
dBm. The resultant trace of the subtraction is in dB. When the result is
added to a logarithmic reference the resulting data is in dBm.

LOG Offset: Adds a reference to the TR1 trace.
Operation
►
Press
Press TR1[F1] and select the first trace source:
TR1:
Press TR2[F2] and select the second trace source:
TR2:
NOTE:
Select the trace math function:
PowerDiff[F3]
LogDiff[F4]
LogOffset[F5]
If LogDiff was selected, set the reference level and unit.
LogDiff ref range: -120 dBm ~ 30 dBm
LogDiff ref units: dBm, W
If LogOffset was selected, set the offset level and unit.
LogOffset range: -50 dB ~ +50 dB
To turn trace math off, press the OFF[F6].
February 2017
> More[F1] > Trace Math[F1].
Trace 1, 2, 3, 4*
Trace 1, 2, 3, 4*
*You cannot select the current trace as the TR1 or TR2
trace sources. The current trace is designated by pressing
> Select Trace > [F1].
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