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How Signal Boosters Work
The external antenna is the most noticeable part of the booster system. Think of it as a tool that reaches out to grab signals that your phone’s small built-in antenna can’t. For people traveling on rural highways, through mountains, or across open countryside, losing a signal can be very frustrating and, in an emergency, even dangerous. The external antenna finds any faint cellular signals available and sends them to the booster system inside the truck.
