Configuring the RF Signal
R&S
®
SMW200A
492User Manual 1175.6632.02 ─ 30
Figure 8-8 represents the frequency and power value pairs, in this case with the
dwell time set the same for all steps (global dwell time).
Figure 8-8: Schematic representation of a signal generated in list mode (global dwell time)
The list mode is especially useful in high-speed measurements with fast changing
frequency and level settings.
Note that the shown diagrams represent the behaviour in theory. In real signal genera-
tion, the instruments usually have a blank time when the frequency or level changes.
Interactions and characteristics of list and sweep mode
●
Activating the list mode automatically deactivates all RF and LF sweeps and vice
versa.
●
In list processing mode, the frequency and level display in the status bar is dis-
abled.
●
The sweep modes only work with a global dwell time, that means the time intervals
are constant during signal generation.
●
If you want to hold a running sweep at a specific frequency or level value, enter the
value in the status bar. The sweep stops immediately.
●
We recommend that you switch off the display update for optimum sweep perfor-
mance, especially with short dwell times
See Chapter 12.1.3, "Display Update Settings", on page 712.
I/Q modulation and list mode in path B depends on frequency options
If the instrument is equipped with one of the frequency options R&S SMW-B2012 or
higher frequency options (R&S SMW-B212/-B220 for earlier RF hardware versions) in
path B, and you are generating an I/Q modulated signal, the list processing mode is
blocked in this path.
Varying the RF Signal in List or Sweep Mode
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