How do mobile boosters improve cellular reception in areas with weak signal? Mobile boosters improve cellular reception in areas with weak signal by amplifying the existing signal. They consist of three main components: an outdoor antenna, an amplifier, and an indoor antenna. The outdoor antenna captures the weak signal outside your building or vehicle and sends it to the amplifier. The amplifier boosts the signal strength significantly. Then, the indoor antenna broadcasts the amplified signal inside, providing improved coverage for voice calls, text messages, and data. This process effectively extends the range of your mobile device and ensures better connectivity in areas where the signal may be obstructed by distance, terrain, or building materials. https://www.fixtel.com.au/mobile-signal-repeaters/