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Chapter 4 107
Making Measurements
Making the Spectrum (Frequency Domain) Measurement
— Scale Coupling - Allows you to toggle the scale coupling function
between
On and Off. The default setting is On. The Restart
front-panel key or
Restart softkey under the Meas Control menu,
this function automatically determines the scale per division and
reference values by the measurement results.To manually set
either
Scale/Div or Ref Value values, Scale Coupling must be Off.
Changing the I/Q Polar Window
If the
I/Q Polar window is active in the I/Q Polar view, the SPAN X Scale
key or the
AMPLITUDE Y Scale key access a menu to modify the following
parameters:
•
I/Q Scale/Div - Allows you to set the vertical and horizontal scales by
changing the value per division. The range is 1.00 nV to 20.00 V per
division. The default setting is 100.0 mV.
•
I Origin or Q Origin - Allows you to set the reference value ranging from
−250.00 to 250.00 V. The default setting is 0.00 V.
Selecting Displayed Traces Within Windows
The
View/Trace key allows you to access the Trace Display key to reveal
the trace selection menu. The currently selected trace type is shown on
the
Trace Display key.
•
All - Allows you to view both the current trace and the average trace.
•
Average - Allows you to view only the average trace (in blue color).
•
Current - Allows you to view only the trace (in yellow color) for the
latest data acquisition.