Agilent/Keysight U9361F

The Keysight U9361F RCal receiver calibrator is a palm-sized module that extends measurement accuracy by relocating the reference plane to the device under test output. It corrects systematic errors including signal path losses and frequency response across 10 MHz to 50 GHz, enabling precise characterization of transmitters and transfer of absolute power accuracy. The U9361F generates IF flatness corrections for both magnitude and phase using tunable BPSK comb modulation, improving receiver test system accuracy by an order of magnitude.

The module operates via USB 3.0 interface with ±10 ppm initial calibration accuracy and <±1 ppm/year aging rate. Factory-calibrated with connector-specific standards, it delivers ultra-stable, repeatable corrections for complex magnitude and phase response. Integration with X-Series Signal Analyzers (N9020B, N9021B, N9030B, N9032B, N9040B, N9041B, N9042B) requires software revision A.27.05 or higher, with A.29.01 or higher recommended, plus the U9361Y_RCL license.

Technical Specifications

• Frequency Range: 10 MHz to 50 GHz


• IF Bandwidth: Up to 5 GHz


• Connector Type: 2.4 mm male output


• Power Supply: USB 3.0, +5 V, <900 mA


• Calibration Accuracy: ±10 ppm (nominal, initial)


• Aging Rate: <±1 ppm/year (nominal)


• Physical Form: Compact, palm-size

Key Features

• System path loss and frequency response correction


• Absolute power accuracy transfer to remote measurement plane


• Magnitude and phase flatness corrections


• Tunable BPSK comb modulation for dual-channel correction


• Ultra-stable, factory-calibrated precision


• Order-of-magnitude improvement in receiver test system accuracy


• USB-powered and USB-controlled operation

Typical Applications

• Radar system signal integrity validation


• Satellite communication receiver characterization


• Advanced wireless transmitter power measurements


• High-accuracy IF flatness and phase correction

Compatibility & Integration Designed for X-Series Signal Analyzers. Requires software revision A.27.05 minimum (A.29.01 or higher recommended) and U9361Y_RCL license. For N9020B operation, option DP2, MPB, or B40 required. Two licenses included; upgrade options available.