Keysight U2040 X Series, Руководство пользователя, Страница: 49 / 91

General Operating Information 2
Keysight U2040 X-Series User’s Guide 49
Quick start example to set up a measurement in the Trace view
The following example guides you on how to set up a basic peak power measurement for
RF pulses via BenchVue.
It is assumed that the U2040 X-Series is already connected to a signal generator.
1 Set up the signal generator as follows:
– Pulse period: 500 μ s
– Pulse width: 100 μ s
– Amplitude: 5 dBm
– Frequency: 1 GHz
– Pulse: Enabled
2 Turn on the RF output of the signal generator. Launch the BenchVue Power Meter
application (refer to
page 44 ).
3 Create a Trace display view by clicking .
4 Perform calibration and zeroing for an accurate measurement result.
NOTE
The default power meter mode is Average only. It will change to the Normal mode when
the Trace view is selected. As the Normal mode provides a lower dynamic range, the
measurable power range will automatically narrow down.
To obtain a wider dynamic range for low power measurements (< –40 dBm), you will need
to set to the Average only mode. If the measurement is in the Trace view, a warning
message will appear as the Trace view is only applicable for the sensor's Normal mode.
NOTE
– For power measurements below –50 dBm, it is recommended to perform external
zeroing and turn off the RF output for better accuracy and repeatability.
– Ensure that modulation is enabled.