The Rohde & Schwarz ESR7 is an EMI test receiver and signal/spectrum analyzer for electromagnetic compatibility (EMC) compliance testing across 9 kHz to 7 GHz. It combines specialized EMI measurement modes with general-purpose spectrum analysis, supporting CISPR 16-1-1, ANSI C63.2, MIL-STD-461, and FCC standards. The instrument delivers measurement speed up to 6000 times faster than conventional stepped frequency scans through FFT-based time domain analysis and real-time spectrum capabilities. This acceleration significantly reduces development cycles and certification timelines.
Technical Specifications
Frequency Range: 9 kHz to 7 GHz (standard); 10 Hz to 7 GHz with optional R&S®ESR-B29 module
Measurement Bandwidths:
• Receiver Mode (CISPR): 200 Hz, 9 kHz, 120 kHz (–6 dB)
• Analyzer Mode: 10 Hz to 10 MHz in 1/2/3/5/10 steps (–3 dB); 10 Hz to 300 kHz in 1/2/3/5 sequence (FFT)
• Zero Span: Up to 40 MHz real-time spectrum analysis
RF Input Ratings:
• Max CW Level: 30 dBm (1 W) with RF attenuation ≥ 10 dB, preamplifier off; 23 dBm (0.2 W) with preamplifier on
• Max Pulse Voltage: 150 V (Input 1), 450 V (Input 2)
• Max Pulse Energy: 1 mWs (Input 1), 20 mWs (Input 2) at 10 μs duration
• 1 dB Compression Point: +3 dBm nominal (0 dB attenuation, no preamplification)
Noise Performance (Preamplifier On):
• DANL: –168 dBm typical at 1 Hz bandwidth
• –7 dBμV at 500 MHz (120 kHz bandwidth); 5 dBμV at 3 GHz (1 MHz bandwidth)
Measurement Speed:
• Time Domain Scan: Up to 6000× faster than stepped frequency
• Stepped/Time Domain Scan: 50 μs to 100 s per frequency
• FFT Sweep: 7 μs to 16,000 s
Detectors: Max Peak, Min Peak, Quasi-Peak, RMS, Average, CISPR Average, CISPR-RMS
– Key Features
• Dual-mode operation: EMI receiver and spectrum analyzer in one platform
• Touchscreen interface for laboratory and field deployment
• Compact form factor for mobile measurement environments
– Typical Applications
• Product compliance certification to CISPR, ANSI, MIL-STD, and FCC standards
• Radiated and conducted disturbance signal characterization
• Pre-compliance EMC testing during product development
– Compatibility & Integration
Supports optional R&S®ESR-B29 module for extended frequency range (10 Hz to 7 GHz) and decadal EMI bandwidths.
