Agilent/Keysight P9375B

The Keysight P9375B is a compact 2-port Vector Network Analyzer engineered for RF and microwave component characterization from 100 kHz to 26.5 GHz. Its faceless architecture eliminates the traditional instrument chassis, reducing footprint to 48 × 176 × 333 mm and weight to less than 2 kg while maintaining the measurement science, GUI, and SCPI command compatibility of Keysight's VNA platforms. Control via Thunderbolt 3 to an external Windows 10 (64-bit) host PC enables rapid deployment across test locations and improved measurement throughput.

Technical Specifications

• Frequency Range: 100 kHz to 26.5 GHz


• Ports: 2 (cascadable to maximum 8 ports with additional VNAs)


• Trace Noise: 0.0015 dB rms at 10 kHz IFBW


• Output Power: 8 dBm


• Noise Floor: −107 dB


• Dimensions: 48 × 176 × 333 mm


• Weight: <2 kg


• Interface: Thunderbolt 3 primary; USB 3.0 panel mount (direct Intel chipset connection)

Key Features

• S-parameter measurement and general-purpose passive component network analysis


• Enhanced time-domain analysis with Time Domain Reflectometry (TDR)


• Automatic fixture removal capability


• Support for Keysight Electronic Calibration (ECal) and mechanical calibration modules


• Cascadable architecture permits extension from 2 to 4 or more test ports using compatible VNA units, configuration kits, and multiport calibrated measurement software


• Measurement consistency assured through alignment with PNA, ENA, and PXI VNA command sets

Typical Applications

• Aerospace and defense RF/microwave component testing


• Telecommunications network analysis


• Passive component characterization requiring laboratory-grade accuracy

Compatibility & Integration Operation requires Windows 10 (64-bit) Version 1909 or later, Keysight IO Libraries Suite (IOLS) 2021 or greater, and P937xA instrument firmware. Keysight Vector Network Analyzer activation software is mandatory. BenchVue and Connection Expert are optional software downloads. The Thunderbolt 3 interface connects directly to the host PC for command and measurement streaming.