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R&S tweaks EMI test receiver, speeds measurments

26 Feb 2013

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 Rohde & Schwarz

Test and measurement specialists at Rohde & Schwarz have recently unveiled its latest test receiver. The company's ESRP EMI test receiver is designed for diagnostic and pre-compliance measurements in the frequency range of 10Hz to 7GHz and measures conducted and radiated EMI. A pre-selection option protects the front end against overloading and delivers reproducible measurement results.

The instrument offers two methods for measuring disturbance signals: the fast FFT-based time-domain scan and the conventional, but slower, stepped-frequency scan. Both methods comply with the CISPR 16-1-1 standard for EMC measurements.

In time-domain scan mode, the ESRP measures conducted disturbances in CISPR band B with quasi-peak weighting many orders of magnitude faster than conventional EMI test receivers using stepped-frequency scan. Time-domain scanning makes the ESRP useful for testing DUTs with function-specific short operating times in the automotive and lighting industries, such as starters and window lifters or fluorescent lamps in the warm-up phase.

In addition, the ESRP operates as a spectrum analyser. A spectrogram function displays and records the analysed spectrum versus time, and an IF analysis function displays the spectrum around disturbance signals.

Datasheet for the ESRP EMI test receiver can be found here.

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