Why is a leakage detector preferable to a signal level meter (SLM) for detecting leakage?

A leakage detector is preferable to a signal level meter for detecting leakage primarily because it has increased sensitivity to weak signals. This heightened sensitivity allows the leakage detector to identify the small, unintended RF signals that might escape from a coaxial cable or other transmission mediums.

In many cases, leakage occurs at levels that are significantly lower than the operational signal strength, making it challenging for standard equipment to pick up such weak signals effectively. The specific design and technology behind leakage detectors enable them to spot these low-level leaks that could otherwise go unnoticed, ensuring better detection of potential sources of interference and compliance with regulatory standards related to signal leakage.

This sensitivity is crucial in maintaining signal integrity within systems, especially in densely populated areas where leakage can impact other services. As a result, technicians can address potential issues before they escalate into more significant problems, promoting better overall system performance and compliance.