NARDA IDA - Page 217

Narda IDA-3106 209
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.