A device designed to amplify cellular signals, counteracting the effects of weak reception due to distance from cell towers, building materials, or geographic obstructions. For example, where signals are weak due to being located in a basement or rural area, these devices enhance the existing signal, providing improved call quality and data speeds.
These signal amplifiers are important because they enable reliable communication in areas where it would otherwise be impossible or inconsistent. This is especially important for emergency calls, remote work, and maintaining connectivity in areas with limited infrastructure. The technology has evolved over time, with initial solutions being relatively basic amplifiers and current versions incorporating sophisticated signal processing and management capabilities.