The Keysight E8257DV2B is a highly synthesized PSG analog signal generator engineered for demanding RF and microwave applications requiring metrology-grade signal generation. It delivers output power, exceptional level accuracy, and superior phase noise performance across extended frequency ranges, making it ideal for radar system testing, electronic warfare platforms, and complex communication systems.
Technical Specifications
Frequency Range
• 250 kHz to 13 GHz (Option 513)
• 250 kHz to 20 GHz (Option 520)
• 250 kHz to 31.8 GHz (Option 532)
• 250 kHz to 40 GHz (Option 540)
• 250 kHz to 50 GHz (Option 550)
• 250 kHz to 67 GHz (Option 567), operational up to 70 GHz
• Underrange down to 100 kHz supported on all models
• Typical performance extends to 70 GHz for Option 567
Output Power
• Maximum output: +30 dBm (1 W)
• With step attenuator (Option 1E1): down to –135 dBm
• Power specifications warranted 15 to 35 °C; typical 0 to 15 °C
• Degradation typically <2 dB over 35 to 55 °C range
Level Accuracy
• Metrology-grade accuracy: ±0.8 dB across most frequency ranges
• Specifications valid 0 to 55 °C after 45-minute warm-up
Phase Noise
• –91 dBc/Hz at 100 Hz offset (10 GHz carrier)
• –126 dBc/Hz at 10 kHz offset (10 GHz carrier)
• –144 dBc/Hz at 10 MHz offset (typical)
• –143 dBc/Hz typical at 1 GHz signal, 10 kHz offset with Option UNY
• Option UNY provides enhanced ultra-low phase noise
• Optimal phase noise at 5 dBm ± 2 dB output level
Switching Speed
• Frequency switching: 7 ms typical
• CW switching: <11 ms typical
• CW switching to 0.05% of final frequency: ≥5 ms nominal
Modulation
• Optional analog modulation: AM, FM, PM
• Optional pulse modulation with rise times as low as 6 ns (Option UNW)
• AM modulation depth: up to 90%
• FM deviation: up to 10 MHz
– Key Features
• Distortion and spurious performance meeting metrology standards
• Frequency extenders available for coverage to 1.1 THz
• Wide dynamic range with precision attenuation control
– Typical Applications
• Advanced radar system characterization
• Electronic warfare platform testing
• Complex communication system validation
– Compatibility & Integration
The E8257DV2B integrates modulation options and frequency extension capabilities to support evolving test requirements across microwave and millimeter-wave bands.
