The Rohde & Schwarz ESW26 is a high-performance EMI test receiver combining spectrum analysis and signal measurement capabilities in a single instrument. Operating from 1 Hz to 26.5 GHz, it delivers the sensitivity, dynamic range, and measurement accuracy demanded by EMI certification testing. The ESW26 meets CISPR 16-1-1, ANSI C63.2, MIL-STD-461, FCC, EN, DO-160, VCCI, and ETS standards, making it suitable for R&D, manufacturing, and field service applications.
Technical Specifications
• Frequency Range: 1 Hz to 26.5 GHz
• Measurement Bandwidth: 1 Hz to 10 MHz (standard); optional extensions to 80 MHz or 970 MHz FFT bandwidth
• Resolution Bandwidth: 1 Hz to 10 MHz in 1/2/3/5 sequence; with R&S®ESW-B8 option, 20 MHz, 50 MHz, 80 MHz
• Displayed Average Noise Level (DANL): −168 dBm typical at 1 GHz
• Noise Figure: 8.5 dB with preamplifier enabled
• 1 dB Compression Point: +15 dBm
• Third-Order Intercept (TOI): +25 dBm typical; 28 dBm nominal for f < 10 MHz
• Measurement Accuracy: ±0.37 dB at 8 GHz; level accuracy <0.4 dB
• Preamplifier Gain: 20 dB
• RF Attenuation: 0 to 79 dB
• Phase Noise: −137 dBc (1 Hz) at 10 kHz offset from 1 GHz carrier; −128 dBc (1 Hz) at 10 kHz offset from 10 GHz carrier; −110 dBc (1 Hz) at 100 Hz offset
• Power Consumption: 175 W (base) to 275 W (with all options)
• Supply Voltage: 100 to 240 VAC
– Key Features
• FFT-based Time Domain Scan (TDS) for ultrafast measurements across large frequency segments
• Real-Time Spectrum Analysis via R&S®ESW-K55 option: 80 MHz bandwidth for pulsed and sporadic signal analysis with spectrogram and persistence modes
• MultiView function for simultaneous display of multiple operating modes
• 21 integrated preselection filters as standard
• Highpass filters at 150 kHz, 2 MHz, and 8 MHz; notch filters for 2.4 GHz and 5.8 GHz ISM bands
• CISPR 16-1-1 compliant detectors: Peak, Min. Peak, Quasi-Peak, RMS, Average, CISPR-average, and RMS-average
– Typical Applications
• EMI/RFI certification testing and pre-compliance measurement
• Conducted and radiated emission analysis
• Disturbance signal characterization
• Broadband spectrum surveillance and monitoring
– Compatibility & Integration
The ESW26 integrates optional measurement modules for expanded bandwidth and real-time analysis, supporting both standalone operation and integration into automated test systems via standard interfaces.
