The world's fastest EMI test receiver
13 August 2012
Rohde & Schwarz’s new R&S ESR EMI test receiver offers broadband architecture that allows standard-compliant EMI measurements up to 6000 times faster than other solutions.
Comprehensive diagnostic tools such as spectrogram display, realtime spectrum analysis and IF analysis help developers to detect and eliminate EMI. The R&S ESR also offers an intuitive touchscreen interface.
The new R&S ESR test receiver is available in two different models for frequencies ranging from 10 Hz to 3 GHz or 7 GHz to meet the requirements of all users who perform EMC certification on commercial equipment. The R&S ESR covers all commercial standards relevant for test houses and EMC labs used by electrical equipment manufacturers and their suppliers.
The test receiver features time domain scan, an FFT-based receiver technology that allows it to perform measurements up to 6000 times faster than other EMI test receivers. Standard-compliant EMC measurements which took hours in the past can now be completed in just seconds, saving users valuable time on the way to obtaining results. This measurement method offers advantages when the DUT can only be operated for short periods for testing, such as in the automotive and lighting industry.
The R&S ESR opens up totally new analysis capabilities. The spectrogram function seamlessly displays the analysed spectrum over time and records measurements for up to five hours, allowing developers to detect sporadic interferers. The frequency mask trigger responds to specific events in a spectrum. If the mask is violated, a trigger is activated. The measurement is stopped, and the user can analyse the exact cause and effect of the interferer. The persistence mode allows users to clearly differentiate between pulse interferers and continuous interference. It displays the probability distribution of occurring frequencies and amplitudes in various colours, making it possible to detect interferers that are hidden by broadband signals.
R&S ESR also offers conventional stepped frequency scan so the user can compare with existing results. The test receiver is also a full-featured spectrum analyser and offers proven tools such as IF analysis and time domain display for click rate analysis.
The R&S ESR’s various measurement modes are distinctly separated and the operating mode can be switched at the press of a button. Users can configure complex measurements and automated test sequences directly on the touchscreen. The R&S EMC32 software can be used to remotely control the R&S ESR and integrate it into complex EMC systems for automated measurement sequences.
The test receiver’s application spectrum is as versatile as its diagnostics capabilities. The R&S ESR makes it easy to perform acceptance testing (conducted or radiated) in line with EN/CISPR/FCC on modules, assemblies, household appliances, IT equipment, TVs, radios, etc.
In the automotive sector, the R&S ESR is suitable for acceptance testing of vehicles and accessories in line with automobile manufacturer guidelines, and also for mobile applications thanks to the DC operation option.