Home > Antennas > 3G/4G/LTE Cellular Antennas > Cell Phone Booster Antennas / Expansion Kits

The Altelix Antenna Expansion Kits are the ideal way for expanding indoor cell coverage when used with an existing cell phone signal booster system. Install the indoor antennas in an area where cell reception is the weakest such as an interior room or office. Kits include either Dome or Panel antennas, signal splitter and all the required cable assemblies for an easy installation.