Antenna diversity describes the use of several antennas in order to reduce the destructive interference of RF-radio airwaves. Airwave obliteration is often triggered by reflection of buildings or even out in the open. When using several neighboring antennas the chance of signal-reducing obliterating air waves will decrease. Using additional antennas the transmission safety of a signal will increase. Using several antennas for reception an integrated signal processing decides which of the adjoining signals provides the best level for the purpose.
Reference: Product example HDwireless GV INCAM-G