Agilent/Keysight L2051XA

The Keysight L2051XA is a LAN-based wide dynamic range average power sensor for precise measurement of modulated signals from 10 MHz to 6 GHz. This standalone instrument delivers 50,000 readings per second across a dynamic range of −70 dBm to +26 dBm, eliminating the need for external power supplies or triggering modules. Power is supplied via PoE (IEEE 802.3af or 802.3at Type 1) over a single LAN cable, enabling remote operation up to 100 meters away.

The sensor features a web browser interface with virtual front panel control, internal zero and automatic calibration, and built-in trigger input/output. Type N (male) connectors interface with the measurement system.

Technical Specifications

• Frequency Range: 10 MHz to 6 GHz


• Dynamic Range: −70 dBm to +26 dBm


• Measurement Speed: 50,000 readings/second


• Measurement Accuracy: Valid from −45 dBm to +26 dBm (certain conditions); −45 dBm to +20 dBm (other conditions)


• Connector Type: Type N (male)


• Power Source: USB/LAN port with PoE support

Key Features

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


• Average mode with time-selectivity function across full dynamic range


• Internal zero and automatic calibration


• Built-in trigger input and output


• Web browser interface for remote control and data visualization


• LAN connectivity supports cable runs to 100 meters

Typical Applications

• Modulated signal power measurement


• Pulse and continuous waveform characterization


• Remote power monitoring in distributed test environments

Compatibility & Integration The L2051XA integrates with Keysight BenchVue software via the BV0007B Power Meters/Sensors App for instrument control and data logging without programming. Compatible with Keysight network analyzers for source power calibration. Optional LAN cables available in lengths of 1.5 m, 3 m, 5 m, and 15.2 m.