Rohde & Schwarz's ESR26 EMI test receiver covers the frequency range from 10Hz to 26.5GHz. The instrument performs conducted or radiated measurements in line with commercial standards such as EN, CISPR and FCC as well as military standards. The North American FCC standard and the CISPR standard both specify EMI measurements up to 18GHz
The broadband architecture enables the receiver to perform standard-compliant disturbance measurements. The company says that EMI measurements that took hours in the past can now be completed in just seconds.
In addition, the instrument offers comprehensive diagnostic tools to support design engineers. The persistence mode allows users to clearly differentiate between pulse and continuous disturbances. It displays the probability of amplitudes occurring at specific frequencies using different colours, making it possible to detect disturbances that are hidden by broadband signals. The frequency mask trigger responds to specific events within a disturbance spectrum. If the mask is violated, a trigger is activated. The measurement is stopped, and the user can analyse the disturbance and its effect.
Users can verify existing results by means of the conventional stepped frequency scan of the test receiver. Plus, the instrument is a full-featured spectrum analyser, providing tried and tested analysis tools such as IF analysis and time domain display.
The test receiver's compact, robust design and its low weight make it suitable for field use. Other features inlcude a DC power supply with rechargeable battery pack, a solid state drive (SSD) and an optional ruggedised housing.
The clearly structured touchscreen allow omplex measurements and automated test sequences are easy to configure. The R&S EMC32 software can be used to remotely control the test receiver and integrate it into complex EMC test systems for automated measurement sequences.