On occasion, you might find yourself getting little or no cell reception in the stairwell and parking garage of your office building. That’s because large structures made of concrete and metal can impede or block radio and cellular signals. A distributed antenna system (DAS) enhances a cellular signal throughout a building using strategically placed antennas. A DAS works with bi-directional amplifiers (BDAs) to allow uninterrupted incoming and outgoing cellular calls.
But exactly how do bi-directional amplifiers work for DAS systems?
BDAs use an antenna to grab a signal from a nearby cellular tower, working as part of a cellular DAS system. The roof of a structure is an ideal place to attach the antenna to avoid any obstructions. The roof antenna takes in a signal from the cell tower and runs it through an amplifier. The amplifier then provides a more robust signal for the DAS to distribute to computers and cell phones throughout the building.
In addition, BDAs have a transmit mode. Cellphones and other devices send a signal back to the indoor antenna, which feeds to the roof antenna. Then the antenna sends a boosted signal back to the cellular tower.
Large structures can block radio tower signals. For safety reasons, regulations require that buildings meet the minimum standards for radio communication. BDAs work as part of a public safety DAS, boosting radio signals to first responders during an emergency.
Similar to a cellular DAS system, an antenna captures signals from a radio tower. Then the radio signal is amplified and distributed by the DAS to all parts of the building. BDAs help the public safety DAS deliver uninterrupted communication.
If you own a business, you want to know that your employees can stay connected at all times during the workday. Unfortunately, weak signals can impede productivity. BDAs help DAS ensure consistent communication throughout the workplace, saving employees from distraction.
Large buildings made of solid materials need a little extra help with signal boosting. BDAs work together with DAS systems to prevent annoying interruptions that lead to dropped calls. Reach out to Harris Communications to learn more about how bi-directional amplifiers work with DAS systems.