S331P

Anritsu

The Site Master S331P is a cable and antenna analyzer designed to streamline the installation, maintenance, and troubleshooting of RF systems. With a frequency range reaching up to 6 GHz and an ultra-lightweight design weighing under 0.4 kg, it delivers laboratory-grade performance in a pocket-sized form factor. Its USB-controlled interface provides exceptional versatility for technicians working in both field and lab environments.

Key Specifications & Features

  • Frequency Range: 150 kHz to 4 GHz or 6 GHz
  • Ultra-portable Design: Weighs less than 0.4 kg for maximum mobility
  • Distance-to-Fault Analysis: Measures return loss and VSWR to locate faults
  • FlexCal Calibration: Single calibration valid across all frequencies
  • USB-Controlled: Powered and operated via Windows PC or tablet
  • Platform Support: Compatible with Field Master Pro units
  • Compact Form Factor: Ideal for high-density RF system testing
  • High-Speed Measurements: Optimized for fast installation and troubleshooting
Overview & Applications
BrandAnritsu
Frequency Range150 kHz to 4 GHz or 6 GHz
Measurement TypesVSWR, Return Loss, Cable Loss, Distance-to-Fault
Calibration1-Port ReadyCal, User Cal, FlexCal
ConnectivityUSB 2.0 to external PC or tablet
S331P-0704 150 kHz to 4 GHz, Cable and Antenna Analyzer, Ultraportable
S331P-0706 150 kHz to 6 GHz, Cable and Antenna Analyzer, Ultraportable

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S331P


The S331P Site Master is an ultra-portable cable and antenna analyzer engineered for the rigorous demands of modern RF infrastructure. It provides essential measurements for the installation, maintenance, and troubleshooting of wireless systems in both field and laboratory environments. By leveraging a compact USB-controlled architecture, it delivers high-performance analysis without the bulk of traditional handheld instruments.

Built for extreme portability, this analyzer weighs under 0.4 kg and features a rugged design capable of withstanding the challenges of field use. It utilizes FlexCal technology, allowing users to perform a single calibration that remains valid across the entire frequency range, which significantly reduces setup time and improves workflow efficiency. The device integrates seamlessly with Windows-based PCs, tablets, or the Field Master Pro platform for intuitive data visualization and control.

The series offers two primary configurations to meet specific frequency requirements for various applications. Users can select the S331P-0704 for coverage ranging from 150 kHz up to 4 GHz or the S331P-0706 for extended range applications up to 6 GHz. Both models include comprehensive Distance-to-Fault (DTF) analysis capabilities to precisely locate issues within cables and antenna systems, ensuring optimal network performance.

Lightweight Portable Design

Weighing under 0.4 kg, this analyzer is the smallest and lightest Site Master available for field use.

Efficient FlexCal Calibration

Perform one calibration that covers all frequencies to save time and increase efficiency during testing.

Wide Frequency Coverage

Choose between models offering frequency ranges from 150 kHz up to 4 GHz or 6 GHz.

Seamless USB Connectivity

Control the device easily through a Windows-based PC, tablet, or compatible Field Master Pro unit.

View Models & Options

Advanced Distance-to-Fault Analysis

The S331P provides critical Distance-to-Fault analysis for measuring both return loss and VSWR. This allows technicians to pinpoint the exact location of faults within RF systems, reducing downtime and simplifying the repair process during field maintenance.

Ultra-Portable USB Control

Designed for maximum mobility, this analyzer weighs less than 0.4 kg and is powered entirely via its USB connection. It eliminates the need for internal batteries by connecting directly to a Windows PC, tablet, or Field Master Pro for versatile operation anywhere.

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