Focus on Test from Rohde & Schwarz - EMC / EMI

Testing electromagnetic compatibility, EMC & electromagnetic interference, EMI should start at the earliest stages of the design to prevent difficult rework later.

Rohde & Schwarz Focus on Test - expert information, white-papers, pages, videos and webinars

Focus on Test from R&S Includes:
Introduction to Focus on Test     Oscilloscopes     5G mobile communications test     Power meters     EMC / EMI test     Signal generators    


Electromagnetic Interference, EMI can cause problems when close by electronic items operate simultaneously. Accordingly Electromagnetic Compatibility, EMC is a key issue in a world filled with electronics that is operating in close proximity of other items 24 hours a day.

We have all come to expect that our variety of electronic gadgets - everything from mobile phones to laptops, computers and even items like heating timers and the like will all be able to operate without causing mutual interference.

However without rigorous testing, interference issues can abound and accordingly EMI and EMC testing is a major issue for all developers.

Testing for electromagnetic interference, EMI and the resulting impact on electromagnetic compatibility is key. Even though the formal EMC testing is done at an approved test house, informal EMI / EMC testing must be undertaken during the design. EMC issues discovered early int he design phase are much easier to resolve than those delivered later one when many elements of the design are fixed.

The links below provide some key insights into various elements of EMC and EMI testing.



Click Rate Analyzer for EMI Test Receivers R&S®ESW, R&S®ESU, R&S®ESR and R&S®ESCI

Household appliances with thermostats such as refrigerators, air conditioners, washing machines or tumble driers generate discontinuous disturbances, which are referred to as click disturbances. These clicks occur sporadically, and are therefore subject to limit values different from those applicable to continuous disturbances. Find out more about testing these disturbances and performing click rate analysis in accordance with CISPR 16-1-1 and CISPR 14-1 / EN 55014-1. The equipment described features realtime graphic display of the maximum peak and quasi-peak values. After the measurement, a test report can be displayed and printed.

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Interference Hunting with R&S®FSH

This is a particularly useful application note that explains how to detect, characterise, find and document interferers in cellular networks using the R&S®FSH spectrum analyser. There is plenty of useful information about interference detection and hunting as well as that on how to use the FSH spectrum analyser.

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