Rohde & Schwarz increases bandwidth to 1GHz on its EMC test receiver to measure the complete frequency range of CISPR Bands C and D
This summer, Rohde & Schwarz was exhibiting its range of EMC test and measurement instrumentation ranging from standalone instruments and software to application-specific systems. Amongst them was an important enhancement to the R&S ESW EMI test receiver with its new 1GHz bandwidth extension.
With product development always under pressure to deliver quickly, ensuring EMC compliance is key for R&D engineers. Every day spent debugging, isolating and correcting EMI problems increases the time to market. Rohde & Schwarz is therefore supporting product developers with its range of EMC and field strength test equipment and software.
EMI compliance testing
For reliable certification measurements in minimum test times, the R&S ESW EMI test receiver has a high measurement speed and comprehensive diagnostic tools and can be used for certification against CISPR, EN, FCC and MIL standards as well as for automotive applications. In order to address the increasing demand for high speed testing, Rohde & Schwarz has extended the FFT bandwidth of the receiver to 970 MHz, making it possible to measure the complete frequency range of CISPR Bands C and D in one shot. Test times can also be minimised with the R&S ELEKTRA EMC test software, which simplifies configuring test systems and running test procedures in accordance with EMC standards. It speeds up test execution and provides comprehensive and customisable test reports.
BCI test system for immunity measurements
R&S also has a robust, compact test system for conducted electromagnetic susceptibility measurements using the bulk current injection (BCI) test method, as prescribed for testing electronic modules in vehicles. The BCI system consists of the R&S SMC100A signal generator, the rugged R&S BBA150 broadband amplifier and integrated R&S NRPxxA/AN power sensors. The system is controlled by the R&S ELEKTRA test software, which controls complete EMC systems and automates the required measurements on the equipment under test to be certified for both emissions (EMI) and immunity (EMS). The new ultra-wideband solid-state R&S BBA300 broadband amplifier with a bandwidth of 380 MHz to 6 GHz and up to 300 W output power, as well as the 2 GHz to 20 GHz R&S SAM100 broadband amplifier is also available.
EMI pre-compliance and debug
In order to prevent unpleasant surprises during EMC compliance testing, the best way is to actively search for radio interference during the product development phase and adapt the design accordingly. The R&S FPL1000 spectrum analyser is ideal for detecting radiated and conducted interference. When equipped with the EMI measurement application, it provides powerful features required for reliable pre-compliance EMI measurements including EMI resolution bandwidths, EMI detectors, measurement automation and report generation. The R&S ELEKTRA EMC test software also supports the R&S FPL1000.
Further powerful tools for EMI debugging, which find a place on practically every product developer’s workbench, are oscilloscopes. The R&S RTO6 oscilloscope features high dynamic range and input sensitivity of 1 mV/div at full measurement bandwidth, making it possible to detect even weak emissions. Its powerful FFT capabilities are ideal for EMI analysis in the frequency domain thanks to their easy operation, high acquisition rate and many functions, such as colour coding of the spectral display according to the frequency of occurrence. The zone trigger in the FFT is ideal for selecting specific frequencies to investigate sporadic emission frequencies.
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