The Rohde & Schwarz ESIB40 is a dual-input EMI test receiver and spectrum analyzer engineered for EMC compliance testing across broad frequency ranges. It delivers the sensitivity, dynamic range, and selectivity of a dedicated EMI receiver while maintaining the measurement speed and flexibility of a modern spectrum analyzer. The instrument supports CISPR, EN, VDE, ANSI, FCC, VCCI, MIL-STD, and DEF-STAN standards, making it suitable for product development and final certification testing.
Technical Specifications
Frequency Coverage:
• Input 1: 20 Hz to 40 GHz
• Input 2: 20 Hz to 1 GHz with integrated pulse protection
• Extension to 110 GHz available via external mixers (Option FSE-B21)
Sensitivity and Dynamic Performance:
• Noise Figure: 10 dB typical
• Noise Floor: < −3 dBµV
• 1 dB Compression Point: +10 dBm
• Measurement Uncertainty: < 1 dB up to 1 GHz
• Wide dynamic range with excellent large-signal immunity
Resolution Bandwidths:
• Receiver Mode (CISPR 16-1-1): 200 Hz, 9 kHz, 120 kHz
• Analyzer Mode: 1 Hz to 10 MHz in 1/2/3/5 steps (3 dB); 10 Hz to 10 MHz decadic (6 dB)
• FFT Filter: up to 1 kHz (Option B5)
Detection and Measurement:
• Four parallel detectors: Peak, Average, CISPR-Average, Quasi-Peak, RMS
• Minimum Measurement Time: 100 µs
• Time-Domain Capability: Zero span with 50 ns resolution for interference analysis
• Automatic Scan: up to four storable traces; 80,000 values per trace (250,000 with single trace)
• Automatic overload detection and autoranging
Front-End Architecture:
• Integrated 20 dB Preamplifier: 1 kHz to 7 GHz standard; optional above 7 GHz (Option ESIB-B2)
• Fixed Preselection: three fixed-tuned filters plus six or seven tracking filters (models 26/40)
• Input bandwidth limiting to reduce mixer voltage
– Key Features
• Dual-input design with independent frequency coverage
• CISPR 16-1-1 and VDE 0876 compliant pulse weighting
• High-speed measurement and result processing
• Fast scanning in receiver mode; sweeping in analyzer mode
• Switchable preamplifier and selectable preselection in analyzer mode
– Typical Applications
Radiated and conducted EMI testing; precompliance and compliance assessment; interference source localization; broadband signal characterization; conducted immunity evaluation across development and certification phases.
– Compatibility & Integration
External mixer options enable measurement beyond 40 GHz. The dual-input architecture accommodates both conducted and radiated testing configurations without instrument switching.
