Information

EMI Pre-Compliance Guide RIGOL Technologies
RIGOL Technologies CO., LTD. 09.09.2021
Susceptibility Analysis
Near field probes, current probes and TEM cells can also be used for conducted / radiated
susceptibility stress of a DUT. RIGOL’s RF generator series DSG800 or DSG3000B are an
optimal tool in combination with those components, to stress a DUT with an amplitude
modulation [AM] e.g. according to IEC 61000-4-3
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, A functionality during stress might be
controlled via the oscilloscope MSO8000 to see e.g. influence to jitter of clock signals or
wrong decoding of bus systems or to see crosstalk effects on strip lines. Conducted
susceptibility could be done with a current probe over the related stress cable. Also the real
time spectrum analyzer can be used to measure, in parallel, sporadic interference reaction at
DUT due to susceptibility stress. The real time functionality offers different trigger types. One
is the frequency mask trigger [FMT] which is a defined field (different color) and the RTSA
measures only, when the conditions of the field is fulfilled (e.g. measure, when a signal is
inside the FMT field, see figure 15).
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Sine wave, 1 kHz, 80% modulation depth, sweep from 80 kHz to 1 MHz
Figure 15: Measurement of sporadic interference reaction due to susceptibility stress