The Keysight M9383B is a PXIe microwave signal generator delivering 1 MHz to 44 GHz coverage with dual-channel architecture designed for aerospace, defense, and wireless communication test. This modular instrument combines high output power (+20 dBm maximum), fast frequency switching (28,000 µs), and low phase noise (-137 dBc/Hz @ 1 GHz, 10 kHz offset) to support radar, electronic warfare, and 5G validation workflows.
Technical Specifications
Frequency and Modulation
• Frequency range: 1 MHz to 44 GHz
• RF bandwidth: 2 GHz
• Frequency switching speed: 28,000 µs
• Internal baseband modulation bandwidth: up to 1 GHz RF
• External I/Q modulation bandwidth: over 2 GHz RF
• Waveform playback memory: 1024 MSa
Output Power
• Output power range: -110 dBm to +23 dBm
• Maximum output power: +20 dBm
• Output power @ 1 GHz: +20 dBm
Signal Quality
• Phase noise @ 1 GHz (10 kHz offset): -137 dBc/Hz
• Phase noise @ 1 GHz (20 kHz offset): -137 dBc/Hz
• Harmonics @ 1 GHz: -46 dBc
• Non-harmonics @ 1 GHz: -50 dBc
Physical and Environmental
• Form factor: PXIe modular (3 slots)
• Dimensions: 205 mm × 61.8 mm × 130 mm
• Weight: 1.9 kg
• Operating temperature: 0 to 40 °C
• Warm-up period: 45 minutes
• Power consumption (dual channel): 990 W
– Key Features
• Vector and analog modulation support including pulse modulation
• Phase-coherent LO and baseband synchronization for MIMO OTA and beamforming applications
• Multi-channel phase coherency support
• SMB RF output connectors; SMA LO connectors; SMP reference clock and sync interfaces
– Typical Applications
• Radar and EW system validation
• 5G NR power amplifier and over-the-air testing
• Complex communication system characterization
• Multi-user MIMO beamforming test
– Compatibility & Integration
Keysight PathWave Signal Generation software provides design and test automation with SCPI command support and optimized 5G NR user interface.
