EMI debugging

Electromagnetic interference (EMI) debugging

When debugging electromagnetic interference (EMI) problems, electronic design engineers face the challenge of identifying the sources of unwanted emissions and developing a solution for them. Repetitive testing at the EMC compliance laboratory to identify and resolve these problems is costly and often significantly delays the product launch. Frequent EMI testing throughout the complete development process reduces the probability of a major redesign, effectively decreasing product launch costs and delays.

Digital oscilloscopes in combination with near-field probe sets are powerful instruments for debugging during design. They allow designers to quickly locate and analyze EMI problems early on. High dynamic range and a high input sensitivity of 1 mV/div ensure that even weak emissions can be analyzed. The R&S®RTO fast Fourier transformation (FFT) implementation provides a fast update rate and the FFT frame overlay processing and persistence display provides insights into the structure of unwanted emissions.

Rohde & Schwarz offers a range of instruments featuring dedicated test modes such as spectrum analyzer mode (combined with zero span), realtime measurement persistence mode and spectrogram view. For EMI test procedures, a stepped scan receiver mode (classic mode) and a time domain (FFT-based) receiver mode are available. While the stepped scan mode offers point-by-point coverage of the complete spectrum, the time domain mode allows parallel handling of numerous frequency points.

Emissions captured by an oscilloscope using a near-field probe
Emissions captured by an oscilloscope using a near-field probe
DUT timing behavior via the spectrogram view
DUT timing behavior via the spectrogram view

Related products

R&S®RTO2000 oscilloscope

Debug electromagnetic interferences during design with a high input sensitivity of 1mV/div. Use with a near-field probe set to quickly locate and analyze EMI problems.

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R&S®FSW signal and spectrum analyzer

Low phase noise, wide analysis bandwidth and straightforward and intuitive operation for fast and easy RF measurements.

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Further information

GNSS receiver testing in accordance to RED 2014/53/EU Article 3.2

Rohde&Schwarz presents a customizable solution for testing GNSS receivers to ensure a certain resilience against (legal) interference from neighboring bands.

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Faster debugging using specialized triggers

In addition to the generic edge trigger, modern oscilloscopes offer triggers that are specialized to address specific problems.

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EMI debugging at board level

Analyze near-field signals and reduce electromagnetic interference (EMI) on boards and modules with the R&S®SpectrumRider FPH and the R&S®HZ-15 near-field probes.

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Analyze EMI problems with the R&S®RTO/RTE

The R&S®RTO/RTE digital oscilloscope is a valuable tool for analyzing EMI problems in electronic designs.

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Automotive test solutions

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Automotive electromagnetic compatibility

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EMC solution

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