Agilent/Keysight P9370B

The Keysight P9370B is a compact, 2-port Vector Network Analyzer designed for RF and microwave component testing from 9 kHz to 4.5 GHz. This portable, faceless instrument connects to an external computer via Thunderbolt 3, enabling high-speed data processing and a graphical interface consistent with Keysight's higher-performance VNA platforms. Weighing less than 2 kg, it delivers measurement science aligned with the PNA, ENA, and PXI series while prioritizing portability and cost-effectiveness across shared laboratory environments.

Technical Specifications

Frequency Range: 9 kHz to 4.5 GHz Ports: 2-port configuration System Dynamic Range (10 Hz IF bandwidth): 115 dB at both 4 GHz and 20 GHz Maximum Output Power: +8 dBm at 4 GHz and 20 GHz Power Sweep Range: −60 to +7 dBm at 4 GHz; −60 to +10 dBm at 20 GHz Test Port Noise Floor: −107 dBm at 4 GHz and 20 GHz Receiver Compression at Test Port: 0.2 dB magnitude / 5° phase at +8 dBm input power Trace Noise: 0.0015 dB rms / 0.01° rms at 4 GHz; 0.0018 dB rms / 0.024° rms at 20 GHz Temperature Stability: 0.005 dB/°C (magnitude) / 0.1°/°C (phase) at 4 GHz Weight: Less than 2 kg

Key Features

• Electronic Calibration (ECal) module support for rapid calibration cycles


• Thunderbolt 3 interface for external computer control and data transfer


• Error correction capabilities aligned with Keysight's VNA measurement science


• Time Domain Analysis (TDR) and automatic fixture removal software support


• Environmental qualification per IEC 60068-2 and MIL-PRF-28800F Class 3


• Specifications valid over 25 °C ± 5 °C after 60-minute warm-up

Typical Applications Component characterization, system-level RF testing, insertion loss and return loss measurement, and distributed testing across multiple team locations.

Compatibility & Integration Requires Keysight IO Libraries Suite 2021 update or later and network analyzer software installed from Keysight's website. Supports SCPI commands and GUI environment consistent with PNA, ENA, and PXI VNA architectures.