Whether it is the latest iPhone 6S or an older model like an iPhone 5 or 4, it is still possible to improve your signal in a home or workplace.
It’s inconceivably irritating to have a great smartphone like an iPhone 6S but not be able to get the most out of it because of poor coverage.
The biggest factor in iPhone signal however is often not the tower itself, but the building you are in. The cause of your bad cell signal is far more likely to be due to the construction materials used in your home or office. Cellular signals have a hard time passing through metal and concrete within the walls of your home. Many buildings also use a wire mesh in their construction that can create a Faraday cage effect. This mesh blocks external static electricity fields, meaning that cell phone signals cannot get through. If you can get iPhone signal outside your building, on the roof, or from an upstairs window, but not indoors, then the problem is likely to be building materials interfering with your signal – and a cellular repeater could fix the problem.
In this case, installing a consumer FCC-licensed signal booster can greatly improve your coverage. Signal boosters are “bi-directional amplifiers” – that means they amplify the signal being sent to and from your nearest cellphone tower.
A signal booster is a hardware device that you can install in your home, office or vehicle. Booster kits typically contain two antennas: one that communicates with the cellphone tower, and another that communicates with your phone. The outside antenna receives an outside signal and transmits it to an amplifier. The amplifier boosts the signal and rebroadcasts it inside via the inside antenna, eliminating dead coverage zones. Booster kits include antennas, amplifier and cables to connect the system.
Most cellular signal boosters on the market today support 4G LTE frequencies. The iPhone 5 was the first device to support LTE signals, so if you have a device such as an iPhone 4 or iPhone 4S, you don’t need an LTE-compatible booster.