What is a Cellular Booster
A Cellular Booster is a system that utilizes available cellular signal to provide access to cell phone signal that is otherwise non-existent or weak inside of a building or structure. This is due to a number of reasons, some of them being:
- Rural Area – Poor overall external signal strength
- External Building Construction – Brick, concrete, metal
- Window Construction – Metallic coating, metallic lining
- Internal Building Construction – Concrete/Cement walls, Metal grid
- Tall Equipment/Metal Racking
Anything that is non-porous will block or prevent cellular signal from being available in a specific area inside of the building.
A Cellular Booster consists of different components to complete the entire system, it is important to understand their specific function:
- External Antenna – this antenna will pick up available signal outside
- Amplifier – this will provide gain (power) to the signal picked up by the external antenna
- Internal Antenna – this antenna rebroadcasts the signal throughout the space requiring coverage
- Coaxial Cable – This connects antennas to the amplifier and offers a transference of signal typically at a relatively low loss
- Lightning Surge Protector – This protects the amplifier from a power surge if the external antenna is struck by lightning
All of these components cannot provide boosted cellular signal by themselves; all components need to be implemented in order for the booster to be effective.
The Cellular Booster is or can be frequency specific so this will need to be considered when moving forward with the implementation of the booster. Some of the frequencies utilized by some of the major carriers are as follows:
- Verizon – 850mHz & 1900mHz for voice and up to 3G data, 700mHz Upper C Block – 4GLTE, 1.7/2.1gHz some 4G
- AT&T – 850mHz & 1900mHz for voice and up to 3G data, 700mHz Lower A & B Block – 4G LTE, 1.7/2.1gHz some 4G
- Sprint – 1900mHz for voice and up to 3G data, 1900mHz G Block – 4G LTE, 2.5gHz some 4G
- T-Mobile – 1900mHz for voice and up to 3G data, 1.7/2.1gHz – 4G
- Metro PCS – 1900mHz for voice and up to 3G data
- U.S. Cellular – 850mHz & 1900mHz for voice and up to 3G data
This is not an all inclusive list, it is important; however, to refer to some type of resource such as Cellular Solutions in determining the specific frequencies utilized in the area you live for the specific carrier.