R&S ESW EMI test receiver bandwidth extensions

To help EMC engineers meet the increasing demand for higher measurement speeds, Rohde & Schwarz is introducing a wideband solution that is able to measure up to 970 MHz in real time, while keeping a high dynamic range and measurement accuracy.

In order to speed up measurement time and to provide a more careful analysis of interfering signals, the R&S ESW EMI test receiver will offer the possibility to increase its FFT (fast Fourier transform) bandwidth to 350 MHz with the R&S ESW-B350 option, and to 970 MHz with the R&S ESW-B1000 option. This makes the unit not only an instrument of high performance in RF, functionality, versatility and hardware quality, but also in high-speed testing, especially for pretests and general EMI analysis.

With the R&S ESW-B1000 offering 970 MHz of FFT bandwidth, the product can process the CISPR Bands C and D in one shot — even with quasi peak and CISPR average detectors working in parallel — offering a gain in measurement speed. The 970 MHz wide spectrum is measured in real time, so users benefit from a truly gapless spectrogram. Infrequent emissions can be observed over a long time and are detected with high probability. Emissions from equipment under test going through a duty cycle are recorded over a broad spectrum of 970 MHz without missing the shortest pulse.

EMC engineers working in commercial, military, aerospace and automotive applications should benefit from the fast speed and signal insights provided by the FFT bandwidth extensions. Both the R&S ESW-B1000 and R&S ESW-B350 options are hardware extensions to the R&S ESW EMI test receiver and can be retrofitted to every R&S ESW (S/N ≥ 103000).