Agilent/Keysight P9370A

The Keysight P9370A is a compact, USB-controlled 2-port vector network analyzer designed for RF and microwave component and system testing from 300 kHz to 4.5 GHz. This benchtop instrument delivers dynamic range exceeding 115 dB at 6.5 GHz with trace noise below 0.003 dBrms, enabling precise S-parameter measurements across aerospace, defense, and telecommunications applications. The P9370A employs proven measurement science and a familiar graphical interface consistent with other Keysight VNAs, reducing operator training time and ensuring measurement repeatability.

Its compact chassis (48 × 178 × 337 mm, 2.04 kg) facilitates mobility between test locations while minimizing bench footprint.

Technical Specifications

• Frequency range: 300 kHz to 4.5 GHz


• 2-port configuration, 50 Ω impedance


• Port connectors: 3.5 mm female (SMA, SMB options available)


• Dynamic range: >115 dB at 6.5 GHz (10 Hz IFBW)


• Trace noise: <0.003 dBrms (1 kHz IFBW)


• Temperature stability: 0.005 °C to 4.5 GHz


• Measurement speed: 14 msec sweep; 24 msec (201 points, full 2-port calibration, 100 kHz IFBW)


• Directivity: <52 dB


• Output power: 0 to 10 dBm


• Power sweep range: -40 to 7 dBm


• Noise floor: -108 to -98 dBm


• Harmonics: -10 to -6 dBc

Key Features

• Automatic fixture removal and time-domain analysis


• Scalar calibrated mixer/converter measurements and multiport calibration support


• Mixed-mode S-parameters


• Compatible with all Keysight Electronic Calibration (ECal) modules and mechanical calibration kits


• Custom uncertainty calculator available


• USB 3.0 control; external PC operation (Windows 7/10 64-bit, Intel i5 6th Gen or newer)

Typical Applications Component characterization, system-level RF testing, and field measurement in aerospace, defense, and telecommunications environments.

Compatibility & Integration Operates via external computer with Windows 7 or Windows 10 (64-bit) and Intel i5 6th Generation or newer processor. Leverages standard Keysight measurement ecosystem and GUI conventions.