Agilent / Keysight 8642M Synthesized signal generator, up to 2GHz

The Agilent/Keysight 8642M is a synthesized signal generator delivering RF signal generation across the 100 kHz to 2 GHz frequency band. Engineered for receiver testing, component characterization, and local oscillator applications, it combines precise frequency control with excellent spectral purity. The instrument provides output levels from +15 dBm to -140 dBm with 0.1 dB resolution and 1 Hz frequency resolution.

Its low phase noise and stable frequency reference make it suitable for both laboratory benchtop operation and integration into automated test equipment systems.

Technical Specifications

• Frequency range: 100 kHz to 2 GHz


• Frequency resolution: 1 Hz (0.1 Hz with special function)


• Display accuracy: ±2 ppm (15°C to 35°C); ±10 ppm (0°C to 50°C)


• Frequency stability: ±2 ppm/year aging rate (standard)


• Option 001 stability: +15 dBm)


• VSWR: <1.5:1 (up to 1 GHz); <2.5:1 (above 1 GHz)


• Reverse power protection: 50 watts, 50 volts (up to 1 GHz); 25 watts, 50 volts (above 1 GHz)


• RF connector: Female Type N Spectral Purity


• SSB phase noise at 20 kHz offset: -127 dBc/Hz (up to 132.1875 MHz); -134 dBc/Hz (132.1875 MHz to 1057.5 MHz); -125 dBc/Hz (above 1057.5 MHz)


• Noise floor: <-135 dBc/Hz (up to 132.1875 MHz); <-140 dBc/Hz (up to 1057.5 MHz)

Key Features

• 1 Hz frequency resolution enables fine-tuned signal calibration


• Exceptional phase noise performance across the 2 GHz range


• Precise output level control with 0.1 dB steps


• Low aging rate and temperature coefficient for stable long-term operation


• 50 Ω output impedance with reverse power protection

Typical Applications

• Receiver sensitivity and selectivity testing


• RF component characterization and validation


• Local oscillator simulation for downconverter evaluation


• Automated test system integration

Compatibility & Integration Female Type N output connector supports standard 50 Ω RF test cables and adapters. Suitable for benchtop and rack-mounted ATE configurations.