The Keysight E8257DV03 is a microwave analog signal generator engineered for RF and microwave testing across aerospace, defense, and communications applications. This instrument delivers broad frequency coverage, high output power, and precision modulation in a single source, enabling demanding device characterization and system validation with metrology-grade accuracy.
Technical Specifications
Frequency and Power
• Frequency range: 100 kHz to 67 GHz (extended to 1.1 THz with frequency extenders)
• Output power: up to +30 dBm (1 W)
• Output impedance: 50 Ω (nominal)
• Level accuracy: metrology-grade
• Frequency accuracy: metrology-grade
Phase Noise Performance
• –91 dBc/Hz at 100 Hz offset (at 10 GHz)
• –126 dBc/Hz at 10 kHz offset (at 10 GHz)
Modulation and Sweep
• Modulation types: AM, FM, phase modulation, pulse modulation
• Sweep modes: step sweep (frequency/amplitude), ramp sweep
Switching and Settling
• CW switching: typically 5 ms to within 0.05% of final frequency
Stability
• Aging rate: ±1 × 10⁻⁷/year
• Temperature stability: ±5 × 10⁻⁸ across 0 to 55 °C
• Line voltage effects: ±2 × 10⁻⁹
Output Characteristics
• Excellent harmonic and spurious rejection
• Low-band harmonic filters available (Option 1EH)
– Key Features
• Extended low-frequency option down to 250 kHz (Option H1K)
• External reference input: 1, 2, 2.5, 5, 10 MHz
• GPIB system interface support
• Phase noise performance suitable for Doppler radar, ADC, and receiver-blocking tests
• Power ratings guaranteed 15 to 35 °C; typical 0 to 15 °C
– Typical Applications
• Aerospace and defense system testing
• Communications receiver characterization
• Radar and Doppler testing
• ADC and receiver blocking analysis
• High-power device validation
– Compatibility & Integration
GPIB connectivity enables integration into automated test systems. Accommodates external frequency references for synchronized multi-instrument configurations.
