The Keysight N9040B UXA is the flagship X-Series signal analyzer, delivering high-performance real-time spectrum analysis. With baseline frequency coverage up to 26.5 GHz (extensible to 1.1 THz with external mixing) and analysis bandwidths up to 510 MHz, it offers industry-leading phase noise and dynamic range. Equipped with a streamlined 14.1-inch touchscreen and comprehensive measurement software, the UXA is designed for advanced aerospace, defense, and commercial communications applications.

Specifications

General

ParameterValue
InterfacesUSB 3.0, USB 2.0, 1000Base-T LAN, GPIB
Display14.1-inch touch-driven interface
Data StorageRemovable solid-state drive (SSD)
Calibration Cycle1 year

Physical

ParameterValue
Power Supply100 to 120 V, 50/60/400 Hz; 220 to 240 V, 50/60 Hz

Frequency Specifications

ParameterValue
Frequency Range2 Hz to 8.4, 13.6, 26.5, 44, or 50 GHz
Frequency Band OptionsOption 508 (8.4 GHz), Option 513 (13.6 GHz), Option 526 (26.5 GHz), Option 544 (44 GHz), Option 550 (50 GHz)
Frequency ExtensionUp to 110 GHz with Keysight smart mixers; up to 1.1 THz with standard external mixing
Phase Noise @ 10 kHz Offset-136 dBc/Hz (@ 1 GHz carrier)

Amplitude Specifications

ParameterValue
Absolute Amplitude Accuracy±0.16 dB
Spurious-Free Dynamic Range (SFDR)>78 dBc (full band)

Analysis Bandwidth & Spurious Responses

ParameterValue
Standard Analysis Bandwidth25 MHz
Real-Time Analysis CapabilitiesOptional

Sweep and Trace Specifications

ParameterValue
Sweep CapabilitiesFast sweep capability (standard)

Software & Measurement Functions

ParameterValue
One-Button Power MeasurementsKeysight PowerSuite (standard), fast power measurements (optional)
Remote Control / SCPI CompatibilityLXI compliant, SCPI, IVI-COM

Inputs & Outputs

ParameterValue
RF Input Connector (44 GHz & 50 GHz Options)2.4 mm (male)
External Reference Input10 MHz (BNC)

RF Input

ParameterValue
Input Attenuator0 to 70 dB in 2 dB steps

Amplitude

ParameterValue
Maximum Safe Input Power+30 dBm (1 W)
Amplitude Measurement RangeDisplayed Average Noise Level (DANL) to +30 dBm

Bandwidth

ParameterValue
Resolution Bandwidth (RBW)1 Hz to 8 MHz

Analysis

ParameterValue
Trace DetectorsNormal, Positive Peak, Negative Peak, Sample, RMS Average, Voltage Average, Log Power Average

Triggering

ParameterValue
Trigger SourcesFree Run, Video, Line, External 1, External 2, RF Burst, Periodic Timer

Technology

Real-Time Signal Analyzer (RTSA)

Applications

Aerospace, defense, and commercial communications wideband signal analysis