The mid-range compliance-grade R&S®ESR EMI test receiver from Rohde & Schwarz offers three frequency variants up to 3.6 GHz, 7 GHz and 26.5 GHz, fully complying with CISPR, military and aerospace EMC standards out of the box. Equipped with integrated 20 dB low-noise preselector preamplifier, FFT ultra-fast scan and optional 40 MHz real-time spectrum analysis, it captures nanosecond-scale transient burst interference. It comes with full standard EMI detectors, with optional APD click noise analyzer, IF analysis and portable battery kit. The touchscreen supports fully automatic test sequences, with PC software to export standardized compliance reports. Suitable for both third-party laboratory certification and in-house R&D fault diagnosis, it is the mainstream core EMI tester balancing accuracy, measurement speed and cost.