The ALP-450 is a broadband directional log periodic antenna. It will receive any frequency from 450 to 900 MHz. The "gain" of this antenna enables it to receive signals from a greater distance than a typical "whip" type antenna. Log Periodic Antennas are also directional (like a TV antenna) and will have the best reception when pointed at the transmitter. This yields the benefit of
less interference from unwanted signals coming from the back or side of the antenna.