Which tool is most commonly used to test signal strength in a telecom system?

The most commonly used tool to test signal strength in a telecom system is the signal analyzer. This device is specifically designed to measure and analyze various properties of signals, including signal strength, frequency, and modulation. Signal analyzers are critical in ensuring that signals are being transmitted and received effectively, allowing technicians to identify any issues with coverage or interference that might impact service quality.

In contrast, while a multimeter can measure voltage, current, and resistance, it is not adept at analyzing the characteristics of radio frequency signals, which are crucial in telecom applications. An oscilloscope is primarily used for visualizing waveforms, providing insights into a signal’s behavior over time, but it doesn’t directly measure signal strength in the way a signal analyzer does. A clamp meter measures current flow and is not applicable for testing signal strength, making it unsuitable for the tasks typically performed in telecom system maintenance and troubleshooting.