Agilent/Keysight U2055XA

The Keysight U2055XA is a USB-connected wide dynamic range average power sensor for precise RF power measurements from 10 MHz to 50 GHz (extendable to 53 GHz with Option 053). It delivers real-time measurement capability at up to 50,000 readings per second with zero dead time, enabling continuous acquisition of pulsed and modulated signals without interruption. The sensor combines average-mode power measurement with time-selectivity functions, pulse parameter analysis (rise time, fall time, pulse width), and internal zero/automatic calibration to minimize measurement uncertainty.

Built-in presets for radar and wireless standards - including DME, GSM, EDGE, WCDMA, WLAN, and LTE - simplify setup for common applications, while broadband coverage accommodates arbitrary modulated signal formats. A variable sampling rate of 1 million samples per second and adjustable aperture duration in average mode provide flexible measurement resolution. The 2.4 mm male connector interfaces directly with RF sources, and dual BNC trigger connectors enable external synchronization and daisy-chaining of multiple sensors.

Technical Specifications

• Frequency Range: 10 MHz to 50 GHz (standard); 10 MHz to 53 GHz with Option 053


• Power Measurement Range: −70 dBm to +20 dBm (10 MHz to 50 GHz); −70 dBm to 0 dBm (>50 GHz to 53 GHz with Option 053); −70 dBm to +26 dBm (USB/LAN models)


• Measurement Speed: Up to 50,000 readings/second in real-time; 1 million samples/second variable sampling rate


• Connector: 2.4 mm male


• Physical Dimensions: 13.3 × 4.4 × 3.5 cm


• Weight: 0.240 kg (packaged)

Key Features

• Real-time measurement with zero dead time for continuous pulse acquisition


• Average mode with time-selectivity function and variable aperture duration


• Pulse analysis: rise time, fall time, and pulse width measurement


• Internal zero and automatic calibration


• Built-in presets for DME, GSM, EDGE, WCDMA, WLAN, LTE


• Broadband signal coverage for any modulation format


• Dual BNC trigger in/out connections for external synchronization

Typical Applications

• Wireless communication system characterization


• Radar signal measurement and analysis


• Pulsed RF signal testing


• Time-domain power profiling of modulated signals

Compatibility & Integration

• Interface: USB 2.0 connection to PC


• Software: Keysight BenchVue with Basic Power Meter/Sensor Control and Analysis App (BV0007B) for instrument control and automated testing without programming


• Included Accessories: 5 ft USB cable, two 1.5 m BNC male-to-SMB female trigger cables (50 Ω), calibration certificate


• Optional Extensions: 10 ft (Option 302) or 16.4 ft (Option 303) power sensor cables