Configuring the Signal in the RF Domain
R&S
®
SMW200A
458User Manual 1175.6632.02 ─ 16
Figure 7-8: Schematic representation of a signal generated in sweep mode (RF Freq Sweep)
The main application field of the "Sweep" mode is to determine the frequency
response or level-dependent behavior of the DUT.
●
List mode
The instrument generates the signal step-by-step, based on frequency and ampli-
tude value pairs with individual step sizes. While in sweep mode the frequency or
the level values change, in list mode you can vary both parameters simultane-
ously . The frequency and level values do not need to have ascending or descend-
ing order, they can vary arbitrarily.
You can use a global dwell time, which means that the time interval is constant for
all steps of the list, or vary the dwell time for each value pair.
In this mode, the graph represents the frequency and power value pairs, and the
dwell time of the corresponding index entry of the list mode table.
Figure 7-9: Schematic representation of a signal generated in list mode, in this case with global
dwell time
1 = Index
2, 3 = "Frequency"/"Power " value pairs
4 = Dwell time for each "Frequency"/"Power " value pair
Varying the RF Signal in List or Sweep Mode
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