The Keysight E8663B 509 9 GHz PSG is a high-performance analog signal generator engineered for applications demanding precise, stable RF signals with exceptional close-to-carrier phase noise. Built on the proven 8663A platform, this instrument delivers phase noise performance down to 1 Hz offset from carrier, making it ideal for radar development, satellite communications, and low-noise local oscillator applications. Options 509 and HAR extend frequency coverage and optimize phase noise below 500 MHz.
Technical Specifications
Frequency Performance
• Frequency range: 100 kHz to 9 GHz
• Frequency resolution: 0.001 Hz
• Output power: −135 dBm to +18 dBm typical
• Phase noise: Industry-best close-to-carrier performance; Option HAR improves phase noise below 500 MHz
Modulation Capabilities
• AM, FM, phase modulation (ØM), and pulse modulation
• Simultaneous modulation enabled
• Pulse modulation: Typical 8 ns rise/fall times, 20 ns pulse width from 10 MHz to 9 GHz
• Dual internal function generators with sine, square, triangular, ramp, and noise waveforms
Reference and Timing
• External reference input: 10 MHz only, ±1.0 ppm lock range, 5 dBm ±5 dB at 50 Ω
• Reference output: 10 MHz, >+4 dBm typical into 50 Ω load
– Key Features
• Superior level accuracy across frequency bands and power levels
• Harmonic and non-harmonic distortion specifications across full frequency range
• 10BaseT LAN and GPIB interfaces
• SCPI and IVI-COM drivers
• AC power with three-prong grounded connection
– Typical Applications
• Radar system development and characterization
• Satellite communications testing
• Low-noise local oscillator and reference signal sourcing
• Phase noise measurement and analysis
– Compatibility & Integration
Backward compatible with Keysight 8662A and 8663A signal generators. Integrates with E5500 and 3048A phase noise test systems. Note: E8663B is obsolete; E8663D PSG RF Analog Signal Generator is the current successor.


















