Rohde & Schwarz ZNH4 Handheld Vector Network Analyzer

Overview

The Rohde & Schwarz ZNH4 is a full two-port handheld vector network analyzer that enables one-port cable and antenna measurements along with complete two-port S-parameter measurements. The touchscreen interface simplifies operation, and the configuration overview menu makes measurement preparation efficient. Despite its compact form factor, the ZNH4 delivers comprehensive functionality and excellent performance for all key RF measurement tasks.

The ZNH4 is designed for field engineers who need to quickly identify defects in RF communications systems and remedy them on-site. The basic version can perform cable and antenna measurements plus four S-parameter measurements, and optional modules add power meter, pulse measurement, and wave quantities capabilities for maintenance of radar and satellite systems.

Key Features

• Frequency range from 30 kHz to 4 GHz
• One-port cable and antenna measurement with basic unit
• Two-port S-parameter measurements (S11, S12, S21, S22) with basic unit
• 100 dB (typ.) dynamic range for filter and antenna isolation measurements
• Non-reflective touchscreen display with small form factor
• Rugged housing with IP51 rating for field operations
• Four-receiver architecture for advanced UOSM calibration
• Low trace noise: 0.0015 dB to 0.0040 dB (typ.) magnitude RMS, 0.02° to 0.04° phase RMS
• Adjustable receiver step attenuator (0 dB to 15 dB in 5 dB steps) at both ports
• Smartphone-like touchscreen controls with pinch-to-zoom capability
• Remote control via free PC, Android, and iOS applications
• Measurement wizard for automated test sequences

Applications

• RF communications system troubleshooting and field maintenance
• Cable loss and reflection measurements
• Antenna characterization and impedance matching
• Component and subassembly testing
• Radar and satellite system verification and maintenance
• Distance to fault and transmission measurements