Rohde & Schwarz ESW8 EMI Test Receiver, 1Hz to 8GHz

The Rohde & Schwarz ESW8 is a EMI test receiver spanning 1 Hz to 8 GHz with measurement accuracy of ±0.37 dB. It combines EMI receiver and spectrum analyzer functionality in a single instrument, delivering the sensitivity and dynamic range required for pre-compliance and certification testing. The ESW8 meets CISPR16-1-1, ANSIC63.2, MIL-STD-461, FCC, EN, and DO-160 standards.

Technical Specifications

Frequency and RF Performance

• Frequency range: 1 Hz to 8 GHz


• Impedance: 50 Ohms


• Measurement accuracy: ±0.37 dB


• RF attenuation: 0 to 79 dB, 1 dB steps


• Preamplifier gain: 20 dB (switchable)


• Optional Low Noise Amplifier: 30 dB gain


• P1dB: +15 dBm (nom.)


• IP3: +20 to +25 dBm (typ. +25 dBm at 10 MHz ≤ fin < 1 GHz)


• Displayed Average Noise Level (DANL): < –165 dBm, typ. –168 dBm (1 MHz ≤ f < 1 GHz, 1 Hz RBW)


• VSWR: 2.00:1, 3.00:1 Bandwidth and Filtering


• Resolution bandwidths: 1 Hz to 10 MHz (standard); 20 MHz, 50 MHz, 80 MHz (optional)


• EMI filters: 1 Hz through 10 MHz; 20 MHz, 50 MHz, 80 MHz with R&S®ESW-B8 option


• Preselector: 200 kHz to 2.452 GHz with 21 filters


• Highpass filters at 150 kHz and 2 MHz


• Notch filters for ISM bands at 2.4 GHz and 5.8 GHz

Key Features

• Detection methods: Max. Peak, Min. Peak, Quasi-Peak, RMS, Average, CISPR-average, CISPR RMS


• AM and FM demodulation


• Scan time: 1 µs to 16000 s


• Time Domain Scan (TDS) with FFT-based processing and three optimization modes


• Real-time spectrum analysis with 80 MHz bandwidth (optional R&S®ESW-K55)


• Spectrogram function


• Analysis bandwidth options: 200 Hz, 9 kHz, 120 kHz, 1 MHz

Typical Applications Pre-compliance and certification testing across aerospace, automotive, industrial, telecommunications, and consumer electronics sectors.

Compatibility & Integration Meets CISPR, EN, MIL-STD-461, DO-160, and FCC compliance requirements.