07 Aug 2012

Rohde & Schwarz claims world's fastest EMI test receiver

Rohde & Schwarz has unveiled the new R&S ESR EMI test receiver whose broadband architecture 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 detect and eliminate EMI.

The test receiver is available in two different models for frequencies ranging from 10Hz to 3GHz or 7GHz 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 desired results. This measurement method offers great advantages when the DUT can only be operated for short periods for testing, e.g. in the automotive and lighting industry.

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 colors, making it possible to detect interferers that are hidden by broadband signals.

The ESR also offers conventional stepped frequency scan so the user can compare with existing results. The test receiver is also a full-featured spectrum analyzer and offers proven tools such as IF analysis and time domain display, e.g. for click rate analysis.

The various measurement modes are distinctly separated, and the operating mode can be switched at the press of a button. According to the company, users can easily 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.

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