Agilent/Keysight U9361C

The Keysight U9361C is a compact, USB-powered Receiver Calibrator module that corrects systematic errors in signal analyzer measurements, including path losses and frequency response distortion. Operating from 10 MHz to 26.5 GHz, it transfers absolute power accuracy and generates IF flatness corrections across magnitudes and phase up to 5 GHz IF bandwidths. The U9361C enables precise movement of the measurement reference plane to the device-under-test output, improving receiver test system accuracy by an order of magnitude.

Technical Specifications

Frequency Range: 10 MHz to 26.5 GHz Calibration Types:

• Magnitude-only for absolute power calibration (U9361C-MAG option)


• Complex magnitude and phase for IF flatness calibration (U9361C-CPX option) IF Bandwidth: Up to 5 GHz Modulation: Tunable BPSK comb modulation for magnitude and phase corrections Power Source: USB-powered with USB Type-C interface External Reference: 10 MHz reference input (recommended for optimal accuracy); internal 100 MHz synthesized clock Environmental: Rated for indoor operation with low condensation; type-tested to IEC 60068-2 standards and MIL-PRF-28800F Class 3 equivalents for temperature, humidity, shock, vibration, altitude, and power line conditions

Key Features

• Connector-specific calibration standards enable systematic error detection and correction


• Absolute power accuracy transfer in dBm units


• Reference plane repositioning without manual recalibration


• Compact, palm-sized form factor


• USB Type-C for both power and control

Compatibility & Integration Supported analyzer platforms include Keysight X-Series signal analyzers: N9020B/21B MXA, N9030B/32B PXA, and N9040B/41B/42B UXA. Compatible with VSA software. Standard package includes USB 3.0 Type-A to Type-C cable, magnitude-only calibration module, storage case, 8-in-lb torque wrench, Getting Started Guide, and entitlement for two U9361Y_RCL software licenses.