Losing signals in buildings has been an issue ever since handheld cellular devices came on the market. Signal booster technology, also known as passive DAS, was developed to address the factors that cause poor cellphone reception. They’re designed to amplify a weak outside signal and bypass any obstructions to provide a strong inside signal to an area that was originally not available.
Cellphone signal boosters use an outside antenna to capture the signal that exists outside of the building, a signal booster that strengthens the signal’s strength, and inside antenna(s) to distribute the improved cell signal throughout the inside of the building. Cellphone boosters are used to stop dropped calls and fix weak signals in offices and commercial buildings up to 500,000 square feet.
The system works by mounting an outside antenna in a location that currently has signal, which is typically on the roof. The signal is passed from the outside antenna, by a cable to a signal amplifier inside the building. Once the signal is amplified, it is then sent to an inside antenna, where it is broadcast out to the area that needs better reception. The system also works in reverse, with the signal from your phone being amplified and broadcast back to the tower, ensuring strong, two-way communication.
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