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Power analysis (option R&S
RTA-K31)
R&S
®
RTA4000
362
User Manual 1335.7898.02 ─ 08
e) Scroll down. Select "Power".
Source
Sets the channel for the source input. This can be either a current or a voltage source.
14.5.2
Spectrum
The spectrum analysis measures the spectrum of the output voltage. The results can
be applied to see typical side effect problems of the switched-mode power supply
(SMPS) application, such as switching frequency components of internal SMPS.
14.5.2.1
Spectrum results
The results of "Spectrum" measurements are:
●
Voltage waveform
●
Spectrum
●
Numeric measurement results
For a detailed description of the numeric parameters, see
Remote commands are described in
14.5.2.2
Configuring spectrum measurements
For details of the configuration settings, see
Chapter 14.5.2.3, "Spectrum settings"
1. Press the Apps Selection key. Tap "Power Analysis".
2. In the "Output" tab, tap "Spectrum".
3. Connect the differential voltage probe and the current probe to the oscilloscope.
It is recommended that you use a high-voltage differential probe for measurements
at the DUT power input.
4. Demagnetize the current probe. For details, see the user manual of your current
probe.
5. Select the "Tools" tab.
Output power measurements