Agilent / Keysight U2001A 10 MHz – 6 GHz USB Power Sensor

The Agilent/Keysight U2001A is a USB-connected RF power sensor that delivers direct measurements from 10 MHz to 6 GHz without requiring external power supplies or separate instrumentation. Operating across an 80 dB dynamic range with power levels from −60 dBm to +20 dBm, the U2001A integrates dual-range measurement paths optimized for both low and high power regimes. The sensor connects via USB 2.0 to a PC or laptop and is controlled through Keysight software platforms such as Power Panel and BenchVue, enabling real-time data acquisition and automated analysis.

Technical Specifications

• Frequency range: 10 MHz to 6 GHz (3 MHz to 6 GHz with Option H03)


• Power measurement range: −60 dBm to +20 dBm (−60 dBm to +25 dBm with Option H25)


• Dynamic range: 80 dB


• Measurement speed: Up to 250 readings/second; 1000 readings/second in buffered mode


• Dual-range topology with low power path (−60 dBm to −7 dBm) and high power path (−7 dBm to +20 dBm) Accuracy & Settling


• Average Only Mode accuracy (25 °C ± 10 °C): ±3.0%


• Average Only Mode accuracy (0 °C to 55 °C): ±3.5%


• Normal Mode accuracy (25 °C ± 10 °C): ±4.0% for −30 dBm to +20 dBm


• Settling time (Normal Speed, 1 average): 0.045 seconds Signal Capture & Processing


• Maximum video bandwidth: 40 kHz


• Minimum rise time: 40 µs


• Minimum fall time: 40 µs


• Minimum pulse width: 200 µs


• Sampling rate: 1.47 Msps


• Maximum capture length: 150 ms Measurement Modes


• Average Only Mode: External TTL trigger, optimized for wide dynamic range


• Normal 2 Mode: Time-gated measurements with internal (RF-derived) or external TTL trigger

Key Features

• Internal zeroing isolates the sensor from the device under test without disconnection


• External zeroing recommended for measurements below −30 dBm


• Type-N male RF connector (Option 100)


• USB 2.0 powered - no additional power supply required


• Compact form factor eliminates need for benchtop power meter

Typical Applications Wireless communications, aerospace systems, and electronics manufacturing requiring fast, accurate RF power characterization across microwave frequencies.

Compatibility & Integration USB 2.0 interface; controlled via Keysight Power Panel and BenchVue software platforms.