Antenna amplifier can be confusing. Two types of antenna signal amplification are common. The antenna gain is the antenna's inherent amplifier. This term is used mainly when discussing directional antennas. Antenna gain is a term that refers to an antenna's gain. It doesn't add any power to the signal. This is more a representation of the antenna's ability to convert the signal into an electric current. Directional antennas focus that ability in one direction and sacrifice gain in the other directions. Another type of amplifying amplifies the signal once it has been received. This is commonly called "amplifier gain", and it will not improve the reception of the signal from the antenna. Antenna gain is the only way to improve reception of a TV tower signal. Amplifier gain can be used to compensate for the loss of line and noise caused by digital tuners. This distinction is crucial. This distinction is important. If the antenna can be connected directly to one TV, then amplifiers are only necessary to compensate for signal loss due to splitters and cable connections. If you had problems before splitters were invented, you may want to consider a directional antenna that has a higher gain.