The Keysight N9040BM is a high-performance UXA signal analyzer engineered for demanding measurement applications across research, development, and manufacturing environments. It delivers gap-free real-time spectrum analysis with up to 1 GHz analysis bandwidth and phase noise performance, making it the instrument of choice for characterizing complex signals in 5G, satellite, radar, and electronic warfare systems.
Technical Specifications
Frequency Coverage
• 2 Hz to 50 GHz (base configuration)
• Extendable to 110 GHz with Keysight smart mixers
• Optional terahertz extension available with third-party solutions
Analysis Bandwidth & Real-Time Performance
• Maximum analysis bandwidth: 1 GHz
• Real-time spectrum analysis bandwidth: 510 MHz (gap-free)
• Selectable bandwidth options: 25 MHz, 40 MHz, 255 MHz, 510 MHz, 1 GHz
Signal Fidelity
• Spurious-free dynamic range: 78 dBc across 510 MHz bandwidth
• DANL: -174 dBm @ 1 GHz; -174 dBm at 2 GHz (with preamplifier and Noise Floor Extension enabled)
• Phase noise: -135 dBc/Hz at 1 GHz (10 kHz offset); -136 dBc/Hz (30 kHz offset); -146 dBc/Hz (1 MHz offset)
• Amplitude accuracy: ±0.16 dB
Input Handling
• Attenuator range: 70 dB (2 dB steps)
– Key Features
• 14.1-inch display (1280 x 800 resolution) on benchtop form factor (4U, 68 lbs)
• Real-time data streaming and optimum detection options (Options RTS, RT2)
• 1 GHz analysis bandwidth option (Option H1G)
• 50 GHz preamplifier available (Option P50)
• Windows 10 with Intel i7 processor and 16 GB RAM
– Connectivity
• USB 3.0 (two master ports), USB 2.0 (one master port, stacked with LAN)
• MDR-80 digital bus connector
• BNC analog output connector
– Typical Applications
• 5G NR/MIMO in-band and OTA testing
• Wireless standards: 802.11ax/ay, Bluetooth (BR/EDR/LE4.2/5.0), LTE/LTE-A, W-CDMA/HSPA+, NB-IoT, GSM/EDGE
• Satellite and WLAN (802.11a/b/g/j/p/n/ac/af/ah/ax) characterization
• Radar and electronic warfare signal analysis


















