In high frequency applications, engineers often select small-size cables and compact connectors to meet system design and mass production requirements. Under these conditions, even minor damage or contamination at the connector interface can significantly affect measurement accuracy and test repeatability.

To ensure stable performance and high precision during high frequency testing, Focusimple provides the following practical recommendations for routine test cable maintenance.

1. Proper Storage of Test Cables

When test cables are not in use, always install dust caps on the connectors. Dust caps help protect connector interfaces from dirt, scratches, and accidental impact, which can degrade electrical contact quality and reduce testing accuracy over time.

2. Use Products Within Recommended Specifications

Avoid using cables, connectors, or accessories beyond their specified mechanical or electrical limits. Operating outside recommended specifications may cause hidden damage to the cable structure or connector interface, leading to unstable performance and reduced service life.

3. Correct Connection Practices

When connecting a cable assembly, ensure that the connector interface is properly aligned with the equipment port. Tighten the coupling nut rather than rotating the entire connector body to prevent unnecessary stress or misalignment.

For applications requiring high precision, the use of a calibrated torque wrench is recommended to ensure consistent and reliable connections.

4. Maintain Consistency in Test Setup

To achieve consistent and repeatable measurement results, use test cables and connectors of the same brand, type, and electrical performance across different test batches. Consistency in cable assemblies helps minimize measurement variation caused by differences in electrical characteristics.

High precision in high frequency testing depends not only on equipment performance but also on correct cable handling, storage, and connection practices. By following proper maintenance guidelines and using consistent test cable assemblies, engineers can significantly improve measurement accuracy and long-term reliability