GW Instek GSP-930 User Manual - Manual (Page 47)

BASIC OPERATION
45
Display
Time domain
0Hz Span
Example: Amplitude modulation
Note
The measurement functions such as TOI, SEM,
CNR, CTB, CSO, ACPR, OCBW, phase, Jitter and
NdB are not available with the zero span setting:
Last Span
Description The last span function returns the spectrum
analyzer to the previous span settings.
Operation 1. Press
Span
> Last Span[F4].