Performing Pulse Power Measurements
R&S
®
ZNH
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User Manual 1334.5985.02 ─ 02
1. Press [MEAS] key.
2. Select "Ref Power Config" softkey.
3. Define the reference levels as required.
You can always reset the reference levels to their default value with the "Set to Default"
menu item.
All the reference levels can be relative to the power or the voltage of the signal.
Depending on this selection, different measurement points are being analyzed, so the
results may be different.
1. Press [MEAS] key.
2. Select "Ref Power Config" softkey.
3. Select either the "Power" or the "Voltage" menu item as the reference.
11.2.2
Selecting the Video Bandwidth
When you are using a wideband power sensor, you can change the video bandwidth
used for the measurement. The main effect of using a small video bandwidth is that it
reduces the displayed inherent noise.
Using a small video bandwidth thus increases the measurement sensitivity and allows
you to accurately determine the pulse peak power even for weak pulses. Reducing the
video bandwidth also increases the trigger sensitivity of the power sensor.
Note that the video bandwidth should not be smaller than the RF bandwidth of the
measured signal. Otherwise, measurement results may become invalid.
11.2.3
Averaging Traces
Selecting the trace mode
The "Power" vs "Time" result display provides two trace modes.
●
The "Clear / Write" mode overwrites the trace data after each measurement.
●
The "Average" mode forms an average over several measurements and displays
the data according to the selected detector.
When you select this mode, you can define the number of measurements over
which the trace data is calculated. When you select this mode, you can define the
number of measurements over which the trace data is calculated.
1. Select "Trace" softkey
2. Select the trace mode you prefer for the measurement.
Configuring the Power vs Time Result Display
