NCTI Field Tech II to III Practice Exam 2025 - Free Practice Questions and Study Guide

Preventing high voltage standing wave ratios (VSWR) is crucial for maintaining the performance and longevity of communication equipment. One effective measure for achieving this is tightening connections and using impedance-matched hardware. Impedance mismatch can cause reflections of the signal, leading to increased VSWR values. By ensuring that the connections are tight, the risk of signal loss due to physical gaps or loose fittings is minimized.

Moreover, using impedance-matched hardware is essential as it ensures that the transmitter, cables, and connected devices all operate at the same impedance level. This minimizes reflections and maximizes the transfer of power, thus reducing the VSWR. Properly matched components enable the system to function efficiently, resulting in better quality of the transmitted signal and reduced risk of equipment damage due to high VSWR.

This approach directly addresses the core issue of impedance mismatch that leads to standing waves, making it a comprehensive strategy for preventing high VSWR in equipment.