The Keysight N5191A UXG X-Series Agile Signal Generator, Modified Version, is a high-performance RF signal source engineered for complex waveform generation in aerospace, defense, and wireless communication testing. It delivers fast frequency switching, phase coherency, and advanced modulation across a wide frequency range, enabling multi-emitter simulation, radar signal generation, antenna testing, and electronic warfare applications. The instrument’s agile architecture supports intricate pulse modulation, variable rise/fall times, and arbitrary waveforms with switching speeds as fast as 370 ns.
Technical Specifications
Frequency
• Range: 10 MHz to 40 GHz (option dependent)
• CW Frequency Resolution: 10 kHz
• Fine Frequency Resolution (Option FR1): 0.001 Hz
Output Power
• Standard Output Power: +10 dBm to −10 dBm
Switching Speed
• Standard: 100 µs up to 31.6 GHz; 500 µs up to 40 GHz
• Optional: 1 µs and 370 ns available
• DDS Switching: 170 ns for frequency, amplitude, and phase updates
Phase Noise
• Standard: −117 dBc/Hz (typical) at 20 kHz offset, 10 GHz carrier
Output Impedance
• 50 Ω nominal
– Key Features
Modulation Capabilities
• AM, FM, phase modulation, and narrowband chirp
• FMCW chirp via Fast Control Port (FCP) in Normal mode
• Wideband Chirp (minimum 10%) with Options UT1 and PM2
• Pulse modulation with 90 dB on/off ratio for narrow pulses
Agile Performance
• Phase coherent switching returns to prior phase trajectory at repeated frequencies
• Phase continuous switching minimizes spectral splatter during band transitions
• Frequency and amplitude hopping enabled by UXG custom semiconductors
Interfaces & Connectivity
• 50-pin BCD I/O interface
• 10 GB Ethernet I/O interface
• Connector adapters: 3.5 mm (20 GHz model); 2.4 mm and 2.4 mm to 2.9 mm (40 GHz model)
• External reference input support
– Typical Applications
Radar signal simulation, threat emulation, antenna characterization, EW system testing, multi-emitter environment replication, and RF subsystem validation requiring agile frequency control and phase coherency.
– Compatibility & Integration
Designed for integration into existing threat simulators or deployment as a standalone RF source. Supports SCPI command control and external reference synchronization for networked test environments.
