The N9041B is Keysight’s flagship UXA signal analyzer, designed for R&D validation of millimeter-wave and wideband transient modulated signals. It serves as a high-end RF and millimeter-wave test platform, supporting baseband-to-millimeter-wave signal demodulation, spectrum monitoring, transient signal capture, noise and phase noise characterization. It addresses complex signal measurement challenges for millimeter-wave components, wideband communication, radar, electronic countermeasures and other advanced applications.1. Key SpecificationsFrequency Range: 2 Hz to 90 GHz / 110 GHz (Option 5CX). External mixer modules can extend the frequency range further into terahertz bands. Dual-input ports: Channel 1 covers 2 Hz – 50 GHz (2.4 mm connector); Channel 2 covers 2 Hz – 90/110 GHz (1.0 mm millimeter-wave connector), supporting both conventional RF and millimeter-wave testing.Analysis Bandwidth: Standard 25 MHz IF bandwidth. Option H1G provides 1 GHz internal hardware analysis bandwidth for wideband signal acquisition. Real-time spectrum analysis (RTSA) maximum real-time bandwidth is 255 MHz, enabling seamless capture of transient signals as short as 3.51 μs without missing short pulses or fast frequency-hopping signals.Noise & Phase Noise Performance: Typical DANL (Displayed Average Noise Level) of -164 dBm at 1 GHz (down to -174 dBm with noise extension). Typical phase noise: -135 dBc/Hz at 1 GHz, 10 kHz offset. Excellent noise floor and phase noise performance for low-noise component, local oscillator and receiver sensitivity tests.Amplitude Linearity & Accuracy: Typical amplitude measurement accuracy ±0.16 dB. Superior TOI (Third-Order Intercept) performance minimizes instrument-induced distortion under high-power and high-dynamic-range conditions, ensuring reliable harmonic and spurious measurements.Platform & Software Ecosystem: Windows-based platform with multi-touch interface. Fully compatible with Keysight application suites including 5G NR, Wi‑Fi 7 (802.11ay), radar pulse analysis, EVM, phase noise, noise figure and interference tracing. Supports signal recording, playback and long-duration streaming storage with high-speed SSD modules for post-analysis of large wideband signal datasets.Measurement Capabilities: Swept spectrum analysis, zero-span time-domain observation, real-time spectrum analysis (RTSA), modulation demodulation, pulse parameter measurement, channel power, ACLR, spurious emission, phase noise and spectrum mask compliance testing.2. Target IndustriesAutomotive Millimeter-Wave Radar: 77GHz automotive radar, 4D imaging radar, radar front-end chips and phased-array radar module R&D, validation and compliance testing.Next-Generation Wireless Communications: 5G mmWave, 6G pre-research, Wi‑Fi 7 (802.11ay) modules, RF front-end, power amplifier, filter and antenna development.Satellite & Aerospace RF: Space-borne millimeter-wave transceivers, satellite payloads, RF links and telemetry & telecontrol signal testing.Electronic Warfare & RF Sensing: Frequency-hopping communication, pulsed radar, short transient signals, complex electromagnetic interference interception and analysis.RF Semiconductor & Component Development: Characterization of millimeter-wave power amplifiers, mixers, multipliers, filters, antennas and receiver ICs.Metrology & Third-Party Test Labs: Millimeter-wave RF calibration and RF compliance certification.3. Typical Application ScenariosWideband Modulated Millimeter-Wave Signal Test: EVM, constellation diagram, spectrum emission mask, ACLR, spurious and harmonic testing for 5G mmWave and Wi‑Fi 7 transmitters to evaluate modulation quality.Radar Signal Characterization: Capture and analyze FMCW and pulsed phased-array radar signals. Measure pulse width, PRF, FM slope, phase noise and spurious signals. Used for radiated signal acquisition in anechoic chamber coupling tests.Transient & Frequency-Hopping Signal Monitoring: Leverage RTSA to capture short burst signals, fast hopping signals and intermittent interference easily missed by traditional swept analyzers, for EMI source localization.Low-Noise RF Link Test: Phase noise, noise floor and noise figure measurement for local oscillators and LNAs to characterize receiver sensitivity.High-Power Millimeter-Wave Component Test: Spectrum and intermodulation distortion measurement for millimeter-wave power amplifiers and array antennas. High dynamic range avoids instrument distortion corrupting results.Electromagnetic Environment Monitoring & Signal Recording: Long-term signal streaming and recording in complex electromagnetic environments for post-event review and interference reproduction, suitable for electronic warfare and RF reconnaissance applications.4. Business RemarksThis flagship millimeter-wave test instrument is widely deployed in R&D laboratories, production verification stations and third-party test houses. Available for sale and rental. Calibration service, technical support and test solution consultation are provi

The N9041B is Keysight’s flagship UXA signal analyzer, designed for R&D validation of millimeter-wave and wideband transient modulated signals. It serves as a high-end RF and millimeter-wave test platform, supporting baseband-to-millimeter-wave signal demodulation, spectrum monitoring, transient signal capture, noise and phase noise characterization. It addresses complex signal measurement challenges for millimeter-wave components, wideband communication, radar, electronic countermeasures and other advanced applications.

1. Key Specifications

• Frequency Range: 2 Hz to 90 GHz / 110 GHz (Option 5CX). External mixer modules can extend the frequency range further into terahertz bands. Dual-input ports: Channel 1 covers 2 Hz – 50 GHz (2.4 mm connector); Channel 2 covers 2 Hz – 90/110 GHz (1.0 mm millimeter-wave connector), supporting both conventional RF and millimeter-wave testing.
• Analysis Bandwidth: Standard 25 MHz IF bandwidth. Option H1G provides 1 GHz internal hardware analysis bandwidth for wideband signal acquisition. Real-time spectrum analysis (RTSA) maximum real-time bandwidth is 255 MHz, enabling seamless capture of transient signals as short as 3.51 μs without missing short pulses or fast frequency-hopping signals.
• Noise & Phase Noise Performance: Typical DANL (Displayed Average Noise Level) of -164 dBm at 1 GHz (down to -174 dBm with noise extension). Typical phase noise: -135 dBc/Hz at 1 GHz, 10 kHz offset. Excellent noise floor and phase noise performance for low-noise component, local oscillator and receiver sensitivity tests.
• Amplitude Linearity & Accuracy: Typical amplitude measurement accuracy ±0.16 dB. Superior TOI (Third-Order Intercept) performance minimizes instrument-induced distortion under high-power and high-dynamic-range conditions, ensuring reliable harmonic and spurious measurements.
• Platform & Software Ecosystem: Windows-based platform with multi-touch interface. Fully compatible with Keysight application suites including 5G NR, Wi‑Fi 7 (802.11ay), radar pulse analysis, EVM, phase noise, noise figure and interference tracing. Supports signal recording, playback and long-duration streaming storage with high-speed SSD modules for post-analysis of large wideband signal datasets.
• Measurement Capabilities: Swept spectrum analysis, zero-span time-domain observation, real-time spectrum analysis (RTSA), modulation demodulation, pulse parameter measurement, channel power, ACLR, spurious emission, phase noise and spectrum mask compliance testing.

2. Target Industries

• Automotive Millimeter-Wave Radar: 77GHz automotive radar, 4D imaging radar, radar front-end chips and phased-array radar module R&D, validation and compliance testing.
• Next-Generation Wireless Communications: 5G mmWave, 6G pre-research, Wi‑Fi 7 (802.11ay) modules, RF front-end, power amplifier, filter and antenna development.
• Satellite & Aerospace RF: Space-borne millimeter-wave transceivers, satellite payloads, RF links and telemetry & telecontrol signal testing.
• Electronic Warfare & RF Sensing: Frequency-hopping communication, pulsed radar, short transient signals, complex electromagnetic interference interception and analysis.
• RF Semiconductor & Component Development: Characterization of millimeter-wave power amplifiers, mixers, multipliers, filters, antennas and receiver ICs.
• Metrology & Third-Party Test Labs: Millimeter-wave RF calibration and RF compliance certification.

3. Typical Application Scenarios

• Wideband Modulated Millimeter-Wave Signal Test: EVM, constellation diagram, spectrum emission mask, ACLR, spurious and harmonic testing for 5G mmWave and Wi‑Fi 7 transmitters to evaluate modulation quality.
• Radar Signal Characterization: Capture and analyze FMCW and pulsed phased-array radar signals. Measure pulse width, PRF, FM slope, phase noise and spurious signals. Used for radiated signal acquisition in anechoic chamber coupling tests.
• Transient & Frequency-Hopping Signal Monitoring: Leverage RTSA to capture short burst signals, fast hopping signals and intermittent interference easily missed by traditional swept analyzers, for EMI source localization.
• Low-Noise RF Link Test: Phase noise, noise floor and noise figure measurement for local oscillators and LNAs to characterize receiver sensitivity.
• High-Power Millimeter-Wave Component Test: Spectrum and intermodulation distortion measurement for millimeter-wave power amplifiers and array antennas. High dynamic range avoids instrument distortion corrupting results.
• Electromagnetic Environment Monitoring & Signal Recording: Long-term signal streaming and recording in complex electromagnetic environments for post-event review and interference reproduction, suitable for electronic warfare and RF reconnaissance applications.

4. Business Remarks

This flagship millimeter-wave test instrument is widely deployed in R&D laboratories, production verification stations and third-party test houses. Available for sale and rental. Calibration service, technical support and test solution consultation are provided. It serves as a core wideband millimeter-wave test platform and can replace multiple discrete instruments to simplify complex test system setup.