Common Analysis and Display Functions
R&S
®
ESW
203
User Manual 1177.6298.02 ─ 08
Band A
Band B
Band C/D
Band E
Time constant of
the mechanical
device
160
ms
160
ms
100
ms
100
ms
Corner frequency
10
Hz
100
Hz
100
Hz
1
kHz
Regarding measurement time, see CISPR Average detector.
Measurement times shorter than 20 ms
With measurement times shorter than 20 ms the detector weighting changes to plain
RMS weighting.
11.3.1.2
Analyzing Several Traces - Trace Mode
If several measurement are performed one after the other, or continuous measurement
are performed, the trace mode determines how the data for subsequent traces is pro-
cessed. After each measurement, the trace mode determines whether:
●
The data is frozen (View)
●
The data is hidden (Blank)
●
The data is replaced by new values (Clear Write)
●
The data is replaced selectively (Max Hold, Min Hold, Average)
Each time the trace mode is changed, the selected trace memory is cleared.
The R&S
ESW supports the following trace modes:
Table 11-2: Overview of available trace modes
Trace Mode
Description
Blank
Hides the selected trace.
Clear Write
Overwrite mode: the trace is overwritten by each measurement. This is the default set-
ting.
All available detectors can be selected.
Max Hold
The maximum value is determined over several measurements and displayed. The
R&S
ESW saves the measurement result in the trace memory only if the new value is
greater than the previous one.
This mode is especially useful with modulated or pulsed signals. The signal spectrum
is filled up upon each measurement until all signal components are detected in a kind
of envelope.
This mode is not available for statistics measurements.
Trace Configuration
