NARDA IDA, Руководство по эксплуатации, Страница: 176 / 292

8 Spectrum Analysis Mode
168
IDA - 3106 Narda
8.3.2 Saving the delta spectra and reference
The displayed delta spectra as well as the reference spectrum can be
saved. The traces that will be saved depend on their settings. The table
below shows the relationships:

A spectrum has been set as reference (
Set as Reference
softkey).
1.
Make your selection according to the table above.
2.
Press the
SAVE
button.
8.4 Displaying the time characteristic
(Spectrogram)
Spectrum • Measurement • Spectrogram
Spectrogram mode allows you to display the variation in the signal strength
of a spectrum versus time.
To display the spectrogram:
 Press the
Measurement
softkey. Two display modes are available:
–
Spectrogram:
Only the spectrogram is displayed.
–
Spectrogram & Spectrum:
The spectrogram and the spectrum are
displayed.
Delta Spectrum = on Delta Spectrum = off
The reference spectrum and all the
displayed delta spectra are saved.
The delta spectra are displayed again
when you recall the saved data (Recall).
Only the reference spectrum can be
saved. You must select it as trace type
for this to work ( Trace softkey).
You can generate a new reference
spectrum from a saved spectrum for
subsequent measurements.