Diversity Antenna System

WARNING: This page is about a different car, the 2007 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

A Diversity Antenna System is designed to deliver the best radio signal reception possible. Two antennas are used to form a diversity system. The primary antenna receives both AM and FM signals. The second antenna receives only FM signals.

The Diversity Antenna System consists of 2 separate antennas, and 2 radio antenna modules. The antennas on this vehicle consist of 20 gage stranded wire. These wires are termed elements, and are routed in the body to capture signals.

The antenna reception signals are sorted out by the radio antenna module. When the radio is turned on it sends the antenna enable signal to the left radio antenna module. When the AM band is selected on the radio, the antenna module connects the AM antenna element directly to the radio. When the FM band is selected the FM composite signal is sent to the antenna module. Superimposed on this FM composite signal is the strength of the signal being received by the radio tuner. The antenna module combines both FM signals, phase aligning them, to create one strong signal.