Common Analysis and Display Functions
R&S
®
ESW
199
User Manual 1177.6298.02 ─ 08
However, you should select a measurement time that is sufficient for the detector that
requires the longest measurement time.
You can use several detectors simultaneously. The simultaneous use of several detec-
tors (multiple detection) has advantages for EMC measurements, which often require
different weightings: you can test different weightings with a single measurement. In
the receiver application, you can even apply different detectors to the bargraph mea-
surement, the scan and the final measurement.
The currently active detector is indicated in the trace information (see the abbreviation
in brackets). Note that the detectors mentioned below may not be supported by all
applications available for the R&S
ESW.
Automatic Selection of the Detector
Available in the spectrum application.
The application automatically selects an appropriate detector, depending on the
selected trace mode.
Trace mode
Detector
"Clear Write"
"Auto Peak"
"Max Hold"
"Positive Peak"
"Min Hold"
"Negative Peak"
"Average"
"Sample Peak"
"View"
–
"Blank"
–
The Auto Peak Detector
Available in the spectrum application (but not for the Spectrum Emission Mask).
The auto peak detector determines the maximum and the minimum value of the levels
measured at the individual frequencies which are displayed in one sample point.
The Positive Peak (or Max Peak) and Negative Peak (or Min Peak) Detector
The positive and negative peak detectors display the maximum or minimum level that
has been detected during the measurement.
Tips regarding measurement time:
●
Unmodulated signals can be measured with the shortest possible measurement
time.
●
Pulsed signals require a measurement time that is longer than the expected pulse
length. At least one pulse needs to be covered by the measurement time.
The peak detectors are digital detectors. Therefore, discharging is irrelevant even with
long measurement times.
Trace Configuration
