The Rohde & Schwarz ESAI is a dual-function EMI test receiver and spectrum analyzer engineered for electromagnetic compatibility (EMC) testing from 9 kHz to 3 GHz. It delivers full compliance with CISPR 16-1-1 standards and supports certification testing across CISPR, EN, ETS, FCC, ANSI, VCCI, and VDE requirements. The instrument combines precision test receiver selectivity with spectrum analyzer measurement speed, enabling both pre-compliance diagnostics during development and full-compliance validation in laboratory environments.
Technical Specifications
• Frequency Range: 9 kHz to 3 GHz
• Receiver Mode Bandwidths (–6 dB): 200 Hz, 9 kHz, 120 kHz, 1 MHz
• Analyzer Mode Bandwidths (–3 dB): 10 Hz to 10 MHz in 1/3/10 sequence
• Digital Filters: Approximately 40 channel filters
• Detectors: Peak, Quasi-Peak, Average, RMS, CISPR Average, CISPR RMS
• Displayed Average Noise Level (DANL): Typically –145 dBm at 10 Hz RBW; optionally –153 dBm with Preselector/Pre-amplifier B2
• Phase Noise: –113 dBc (1 Hz) at 10 kHz offset; –125 dBc (1 Hz) at 1 MHz offset
• Intermodulation-Free Range: 93 dB typical (with preamplifier); 100 dB cited for TOI point
• Preamplifier: Integrated 20 dB, switchable on/off
• Preselection: 11 filters with fixed and tuned bandwidths to 3 GHz; always active in receiver mode, switchable in analyzer mode
• Measurement Uncertainty: Typically less than 1 dB
– Key Features
• Operates as both full-compliance EMI receiver and general-purpose spectrum analyzer
• CISPR bandwidths coupled to frequency range with optional disabling
• Low phase noise and wide intermodulation-free range minimize measurement artifacts
• Integrated preamplifier reduces noise figure
• Active preselection in receiver mode ensures filter selectivity
– Typical Applications
• EMC pre-compliance and full-compliance measurements
• Certification testing per international and national EMI standards
• Spectral analysis and ACPR measurements in laboratory settings
• Product development diagnostic analysis
– Compatibility & Integration
Designed for certification compliance across CISPR, EN, ETS, FCC, ANSI, VCCI, and VDE standards. Optional Preselector/Pre-amplifier B2 extends measurement capability.
