Agilent / Keysight 8566B Spectrum Analyzer, 100 Hz to 22 GHz

The Agilent/Keysight 8566B is a spectrum analyzer spanning 100 Hz to 22 GHz, engineered for bench and ATE system integration. It delivers superior measurement speed, microwave frequency accuracy, and sensitivity for low-level signal analysis across its full range. The instrument's synthesizer stability minimizes long-term drift and residual FM, while external mixers extend coverage to 325 GHz.

Technical Specifications

• 100 Hz to 22 GHz (dc-coupled input)


• Extendable to 325 GHz with external mixers


• Preselected external mixers: 26.5 to 75 GHz Frequency Accuracy & Stability


• Reference aging rate: < 1 × 10⁻⁹/day; < 1 × 10⁻⁸ after 24-hour warm-up


• Reference accuracy: < 2.5 × 10⁻⁷/year


• Temperature stability: n × 5 MHz) Resolution Bandwidth


• Range: 10 Hz to 3 MHz (1, 3, 10 sequence)


• Accuracy: ±20% (3 MHz, 10 Hz–1 kHz); ±10% (3 kHz–1 MHz)


• Selectivity (60 dB/3 dB): < 15:1 (100 kHz–3 MHz); < 13:1 (3 kHz–30 kHz); < 12:1 (30 Hz–1 kHz)


• Shape: Synchronously tuned, approximately Gaussian Amplitude Measurement


• Range: +30 dBm to −135 dBm


• Calibrated display: 90 dB


• Display scales: 10 dB/div (90 dB), 5 dB/div (50 dB), 2 dB/div (20 dB)

Key Features

• 16 KB user RAM for trace data, instrument states, and downloadable programs


• Microcomputer control with internal bus architecture


• Manual or AUTO bandwidth selection coupled to frequency span


• Plotter output for sweep times ≥ 20 ms


• Computer control flexibility

Typical Applications Telecommunications, aerospace, electronics manufacturing, EMC testing, broadband signal surveillance.