Monitoring Signal Characteristics
R&S
®
SMW200A
624User Manual 1175.6632.02 ─ 30
Enabled power offsets are considered (see also Chapter 9.2.2.4, "Understanding
the Displayed Measurement Results", on page 625).
9.2.2.3 Selecting a Suitable Acquisition Method
The provided measurement results are based on signal measurement with different
acquisition methods. Select the acquisition method most fitting to your current task.
Depending on whether the displayed power values are pre-calculated or measured,
there are two acquisition approaches:
●
Static results
In "Nominal" acquisition mode, the displayed power and peak values are statistical
theoretical values as calculated by the instrument.
●
Measured results
– "Continuous"
The displayed power values are determined upon analysis of the complete sig-
nal. The sweep time of the performed measurement is selectable, see "Sweep
Time/Duration" on page 628.
This acquisition method is suitable for measurements of continuous signals, the
sum product of correlated signals, and time varying signals
– "Gated"
The displayed single RMS and peak values are determined upon evaluation of
a specific signal segment; the values are the result of one measurement of sig-
nal segments at which a selected marker signal is high. Any of the "Marker
1/2/3" can be used, where the marker signals always relate to the current base-
band signal source.
– "Multi Gated"
In this acquisition mode, the instrument initiates a set of submeasurements and
displays the measurement results separately on different lines.
The measurement function uses the two used-defined marker signals, the
"Marker 2/3", as they are enabled for the current baseband signal source. The
signal "Marker 2" serves as an "init. marker signal" signal that determines the
repetition window; the signal "Marker 3" is a user defined marker signal and
defines different gates in this repetition window. The term gate describes the
time from a rising edge to a subsequent falling edge of the marker signal. For
example, the "Marker 3" signal illustrated on Figure 9-18 defines three gates.
Figure 9-18: Marker signals used in multi-gated acquisition measurement
Marker 2 = init. marker signal
Marker 3 = user-defined marker signal
Querying Information on the Baseband Power Levels
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