The Keysight M9391A PXIe Vector Signal Analyzer is a modular instrument platform engineered for signal monitoring, spectrum analysis, and interference detection across radar, electronic warfare, and complex communication systems. Built on a scalable PXIe architecture, it delivers high dynamic range and broad analysis bandwidth in a form factor optimized for multi-channel and MIMO test integration.
Technical Specifications
Frequency Range
• 1 MHz to 3 GHz (M9391A-F03) or 1 MHz to 6 GHz (M9391A-F06)
Analysis Bandwidth
• Standard: 40 MHz
• Optional: 100 MHz (M9391A-M10) or 160 MHz (M9391A-B16)
Performance Characteristics
• Absolute Amplitude Accuracy: ±0.45 dB
• Displayed Average Noise Level: -157 dBm
• W-CDMA ACLR Dynamic Range: -70.7 dB
• Phase Noise (1 GHz, 10 kHz offset): -119 dBc/Hz
Multi-Channel Capability
• Supports up to 8 time-synchronous, phase-coherent channels
• Time synchronization: within 1 ns
• Phase coherence: within 1 degree (with appropriate modules and chassis)
• Shared frequency reference reduces system footprint
Operating Conditions
• Full Temperature Range: module 25 to 75 °C, environment 0 to 55 °C
• Controlled Temperature Range: module 40 to 51 °C, environment 20 to 30 °C
– Key Features
• Hardware-accelerated Power, Spectrum, and IQ measurements
• Fast amplitude and frequency switching to minimize test duration
• Modular four-module architecture: M9350A Downconverter, M9214A Digitizer, M9301A Synthesizer, M9300A Frequency Reference
• X-Series measurement applications for rapid switching between hardware commands and standards-based modes
– Typical Applications
• Radar and electronic warfare signal analysis
• Multi-channel interference detection and characterization
• MIMO device validation
• Modulated signal demodulation and dynamic range testing
– Compatibility & Integration
The M9391A integrates with Keysight 89600 VSA software, Command Expert, and the Keysight I/O library suite. IVI-COM, IVI-C, LabVIEW, and MATLAB drivers enable deployment across diverse test environments. Pairs with the M9381A PXIe Vector Signal Generator for complete RF component test coverage.
