Agilent/Keysight 8569B-E43

The Agilent/Keysight 8569B-E43 is a spectrum analyzer delivering precise signal analysis across 0.01 GHz to 22 GHz with internal mixing, expandable to 115 GHz using external mixers. Microprocessor-controlled operation, internal preselection from 1.7 GHz to 22 GHz, and excellent sensitivity enable detailed measurement of frequency, amplitude, and distortion characteristics in demanding production and laboratory environments. The analyzer combines a spurious-free measurement range with dynamic range exceeding 90 dB, making it suitable for signal monitoring, interference analysis, and component characterization across multiple frequency bands.

Technical Specifications

• Internal mixer: 0.01 GHz to 22 GHz


• With Option E02: 18 GHz to 40 GHz


• Extended to 71 GHz with HP 11971 series mixers


• Extended to 115 GHz with commercial mixers


• Frequency accuracy: ±5 MHz or 0.2% of center frequency Resolution & Bandwidth


• Resolution bandwidth: 100 Hz to 3 MHz in 1, 3 sequence


• RBW accuracy (3 dB points): ±15%


• Selectivity (60 dB/3 dB): <15:1 (3 kHz to 3 MHz); <11:1 (100 Hz to 1 kHz)


• Frequency span: 1 kHz to 500 MHz/div Amplitude Characteristics


• Maximum safe input: +30 dBm


• Reference level range: +60 dBm to -112 dBm in 10 dB steps plus 0 to -12 dB vernier


• Input impedance: 50 ohm nominal


• Input SWR (0 dB attenuation): <1.5 (0.01–1.8 GHz); <2.0 (1.7–22 GHz)


• Gain compression: 90 dB with tracking generator Protection & Filtering


• Internal diode limiter (0.01–1.8 GHz)


• Preselector protection to +30 dBm (1.7–22 GHz)


• Noise sidebands: >75 dB down ≥30 kHz from signal (1 kHz RBW, 10 Hz video filter) Sweep Performance


• Auto sweep: automatically controlled by span, RBW, and video filter


• Calibrated sweep times: 2 µs to 10 s/div

Key Features

• Internal preselection spanning 1.7 GHz to 22 GHz reduces spurious responses


• Multiband span capability from 1.7 GHz to 22 GHz with full-band display option


• Zero span mode converts analyzer to manually tuned receiver


• Pulse handling: +50 dBm peak power (20 dB attenuation)

Typical Applications

• Signal monitoring and spectral surveillance


• Interference detection and characterization


• Component and subsystem testing in production


• Distortion and harmonic analysis

Compatibility & Integration

• Compatible with HP 8569B Option E02 for 18–40 GHz extension


• Works with HP 11971 series external mixers for 71 GHz operation


• Supports HP 8444A Option 059 Tracking Generator for dynamic range measurement