Agilent / Keysight N5181B MXG X-Series RF Analog Signal Generator, 9 kHz to 6 GHz

The Keysight N5181B MXG X-Series RF Analog Signal Generator delivers precise signal generation across 9 kHz to 6 GHz for R&D, receiver testing, and component characterization. Built for high-performance applications in consumer wireless, military communications, and radar systems, this instrument provides output power up to +27 dBm at 1 GHz with exceptional spectral purity and fast frequency switching.

– Technical Specifications

Frequency & Output Power
• Frequency range: 9 kHz to 6 GHz
• Output power: Up to +27 dBm at 1 GHz
• Output power temperature stability: 0.01 dB/°C outside 20–30 °C
• Output power humidity drift: Up to 0.10 dB (below 3 GHz) and 0.15 dB (above 3 GHz) per g/kg change in absolute humidity

Spectral Performance
• Phase noise: –146 dBm at 1 GHz, 20 kHz offset (–131 dBc/Hz)
• Spurious performance: –96 dBc (non-harmonics) at 1 GHz
• RF amplitude flatness (160 MHz bandwidth): ±0.2 dB
• RF phase flatness (160 MHz bandwidth): ±2 degrees

Frequency Switching
• List/step sweep mode: ≤950 μs typical
• SCPI mode (cached): ≤1.15 ms typical
• CW switching to 0.05% final frequency: 190 μs
• Initial SCPI point: ≤3.3 ms
• Automatic caching of 1024 most recently used frequencies

– Key Features

• Factory-equalized 160 MHz RF bandwidth
• Analog modulation: AM, CW, FM, PM
• Pulse modulation: Narrow pulse modulation available (Option UNW)
• Multi-function generator option (Option 303) for advanced analog modulation
• Amplitude repeatability and relative level accuracy across full frequency and power range

– Typical Applications

Receiver sensitivity testing, interference mitigation, component validation, and signal characterization across consumer wireless, military, and radar domains.