The Keysight U2043XA is a USB-connected average power sensor engineered for precision measurements from 10 MHz to 18 GHz across a dynamic range of −70 dBm to +26 dBm. Built for engineers and system integrators, it delivers accurate power characterization of modulated, pulsed, and continuous wave signals with measurement speeds up to 50,000 readings per second and zero dead time operation.
Technical Specifications
• Frequency Range: 10 MHz to 18 GHz
• Power Range: −70 dBm to +26 dBm
• Measurement Speed: Up to 50,000 readings per second
• Dynamic Range: Wide dynamic range for low-level and high-level signal precision
• Measurement Types: Average power, modulated signals, pulsed signals, continuous wave (CW)
• Zero Dead Time: Real-time measurement capability for continuous pulse analysis
• Time-Selectivity Function: Average mode time-selectivity for time-domain power averaging
• Internal Calibration: Automatic zero and calibration function
• Connector: Type-N (male)
• Operating Temperature: 0 °C to 55 °C
– Key Features
• USB interface for direct connection to test systems
• Internal zero and automatic calibration minimize measurement uncertainty
• Zero dead time operation enables continuous pulse stream characterization without data loss
• Supports both average and time-selective averaging modes
• Wide dynamic range resolves both weak and strong RF signals in single measurement session
– Typical Applications
• EMC testing including pre-compliance, debug, and certification workflows across automotive, aerospace, medical, and industrial sectors
• Emissions and immunity evaluations
• Wireless communication signal power analysis
• General RF power measurement and validation
– Compatibility & Integration
The sensor integrates with Keysight BenchVue software for instrument control, data logging, and visualization without programming requirements. The BenchVue BV0007B Power Meter/Sensor Control and Analysis app provides dedicated average power measurement and analysis capabilities. The unit meets CE, UL, and KC-Mark certification and complies with IEC 61326-1/EN 61326-1, ICES/NMB-001, and AS/NZS CISPR11 EMC standards.
