The Wavetek TD is a Time Domain Reflectometer (TDR) instrument designed for fault location and impedance mismatch analysis across metallic cables, twisted pair, coaxial, telephone cables, and PCB traces. The TD transmits a step or pulse signal into the conductor under test and analyzes reflected signals caused by impedance variations. Reflection timing provides precise distance-to-fault measurements, while reflection amplitude determines impedance discontinuity characteristics.
Technical Specifications
• Display: 3 1/2 digit LCD with up to 2000 counts
• Rise Time: 60 ps (10-90%) at the receiver
• Timing Control: Picosecond-range precision for distance measurement accuracy
• Operating Temperature Range: 0°C to 50°C (extended industrial ranges available)
• Power Supply: 9V battery (portable units); 5V supply (stationary configurations)
– Key Features
• High-resolution reflection detection through fast rise time performance
• Precise fault localization via time-of-flight analysis
• Impedance characterization across multiple cable geometries
• Data transfer via RS-485, SDI-12, and USB-C interfaces
• Legacy GPIB programming support for integration with automated test systems
• Software trigger support for automated measurement sequences
– Typical Applications
• Cable fault detection and distance-to-fault determination
• Impedance profiling in transmission line networks
• PCB trace characterization and discontinuity detection
• Connector and termination point analysis
• Field service troubleshooting of installed cable runs
– Compatibility & Integration
The TD supports multiple interface protocols for laboratory and field integration: RS-485 for industrial control environments, SDI-12 for sensor networks, USB-C for modern computer connectivity, and GPIB for legacy automated test benches.
