Antenna amplifier
![Antenna amplifier for broadcasting service (here: TV broadcasting and FM souns broadcasting.](/Images/godic/202412/21/RF_preamplifier_for_TV_and_FM_VUBCB40N_inner_view3058.jpg")
In electronics, an antenna amplifier (also: aerial eamplifier (booster), Am antennefier) is a device that amplifies an antenna signal, usually into an output with the same impedance as the input impedance. Typically 75 ohm for coaxial cable and 300 ohm for twin-lead cable.