NARDA IDA, Руководство по эксплуатации, Страница: 217 / 292

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To select a trace type/detector:
1.
Press the
View
softkey and select a view.
2.
Press
OK
or
ESC
to exit from the menu.
3.
Press the
Trace / Detector
softkey, select an item using the rotary
control knob, and press
OK
to set the selection.
11.3.6 Setting the Persistence Range
I⁄Q Analyzer • View: Persistence
Different colors are used in the
Persistence Spectrum
view to represent
how often different amplitude values occur at a given frequency. You can set
the number of decades displayed from 2 to 4 decades by selecting one of
the six different ranges using the
Persistence Range
softkey in the Display
menu. The example in Figure 50 has a range set from 0.1 % to 100 %
showing 3 decades. A suitable value is set automatically if you select
Auto
decade.

Persistence Spectrum
view is selected.
1.
Press the
Display
softkey.
2.
Press the
Persistence Range
softkey, select a range using the rotary
control knob, and press
OK
to set the selection.
11.4 Using the trigger function
I⁄Q Analyzer • Trigger Menu
The trigger function allows you to trigger a measurement when the
observed input signal meets the specified conditions. After the
measurement is triggered and the set time span has elapsed, the display is
"frozen" so you can see the signal characteristic. The Magnitude is always
used as the trigger source to which all other trigger parameters refer. A
video bandwidth can be selected to smooth signal peaks.

See
Using the trigger function
on page 192.
11.5 Saving measured values automatically
The Auto Save function allows you to save measured values automatically
when a trigger event occurs.

See
Saving measured values automatically
on page 195.