The Rohde & Schwarz ESPI7 is a high-performance EMI test receiver that combines precertification capabilities with spectrum analyzer functionality for comprehensive EMC compliance testing. Operating from 9 kHz to 7 GHz, it delivers fast measurement speeds down to 100 µs with total measurement uncertainty of 1.5 dB (≤3 GHz) and a displayed average noise level of –145 dBm typical. The instrument executes standard-compliant disturbance measurements, field-strength coverage evaluation, and spectrum analysis across civil EMI standards including CISPR, EN, ETS, FCC, ANSI C63.4, VCCI, and VDE.
Technical Specifications
• Frequency Range: 9 kHz to 7 GHz
• Measurement Speed: 100 µs to 100 s (spectrum analyzer mode); up to 16000 s (analyzer mode); sample rate >100 ksamples/s on discrete frequency
• Measurement Uncertainty: 1.5 dB (≤3 GHz) in receiver mode; typically <0.7 dB
• Displayed Average Noise Level: –145 dBm typical; –155 dBm typical with preamplifier (1 Hz, f <1 GHz)
• 1 dB Compression: 0 dBm nominal
• Resolution Bandwidths: 10 Hz to 10 MHz (steps of 1/3/10); 3 dB bandwidths 10 Hz to 3 MHz; CISPR-conforming 200 Hz, 9 kHz, 120 kHz, 1 MHz
• Detector Types: Peak, Quasi-Peak, RMS, CISPR Average, RMS Average; supports up to three detectors simultaneously
– Key Features
• Parallel detectors for simultaneous Peak, Quasi, and Average display
• Integrated preselection with selectable 20 dB preamplifier (option: R&S ESPI-B2)
• Eleven preselection filters up to 3 GHz (R&S ESPI-B2 option)
• High measurement rate field-strength profiles (R&S ESPI-K50 option)
• TOI, ACPR, OBW, and amplitude statistics test routines
• AM/FM modulation analysis (R&S FSP-K7 option)
• Additional channel filters 5.6 MHz to 8 MHz for DVB-T, ISDB-T, ATSC signals (R&S ESPI-K50 option)
– Typical Applications
• Product development and precertification EMC testing
• Production quality assurance and maintenance
• Field-strength coverage evaluation
• Standard-compliant disturbance measurements (PRFs ≥10 Hz with R&S ESPI-B2)
– Compatibility & Integration
Optional modules expand functionality: R&S ESPI-B2 (preselection, preamplifier, disturbance measurements), R&S ESPI-K50 (field-strength profiling, wide-band filters), R&S FSP-K7 (modulation analysis).
