Agilent/Keysight P9374B

The Agilent/Keysight P9374B is a compact, PC-based Vector Network Analyzer delivering 2-port RF and microwave measurements from 9 kHz to 20 GHz. This lightweight instrument connects via Thunderbolt 3 to a Windows 10 host PC, offloading data processing and control to the host computer. The P9374B shares measurement science and user interface conventions with Keysight's higher-performance PNA, ENA, and PXI platforms, ensuring consistent workflows and repeatable results across product lines.

Technical Specifications

• Frequency Range: 9 kHz to 20 GHz with 1 Hz resolution


• Ports: 2 (extensible to 4 ports via cascading)


• Output Power: 8 dBm


• Trace Noise: 0.0015 dB RMS at 10 kHz IFBW


• Dynamic Range (Typical): Up to 124 dB (50 MHz to 3 GHz)


• Test Port Connectors: 3.5 mm female


• Interface: Thunderbolt 3


• Weight: Less than 2 kg


• Dimensions: 48 × 176 × 333 mm (compact faceless chassis)


• Host OS: Windows 10 (64-bit), Version 1909 or later


• Recommended PC: Intel Core i7 10th Gen or later, 16 GB RAM (4 GB minimum), 2 GB disk space

Key Features

• Port Cascading: Combine multiple units to form 4-port VNA configurations


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


• Software Capabilities: Enhanced Time Domain Analysis with TDR and Automatic Fixture Removal


• Consistent User Interface: Reduces training overhead for engineers familiar with other Keysight VNAs

Typical Applications

• Component characterization (filters, amplifiers, passive networks)


• System-level S-parameter measurements


• R&D and manufacturing test environments requiring portable RF analysis


• Fixture and de-embedding applications

Compatibility & Integration The P9374B integrates into existing Keysight measurement ecosystems. Its Thunderbolt 3 connectivity offloads signal processing to the host PC, eliminating the need for standalone instrumentation power supplies. Measurement science alignment with Keysight's PNA, ENA, and PXI families enables direct algorithm and calibration portability.