The antenna splitter is used for mounting a car radio with an input for 2 antennas and then connecting a car antenna, but there is only one antenna in the car. Antenna splitters with an amplifier are often used. The antenna splitter can be used, for example, for using a VHF antenna to receive AM and FM signals for car radios when using a VHF antenna. Suitable for cars where the original car antenna is replaced by a VHF antenna.