Antenna System (Coupe)

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

(Convertible Models have a Power Antenna)

The Corvette Coupe features a diversity antenna system designed to deliver the best radio signal reception possible.

Two antennas are used to form a diversity system. The primary antenna is attached to the rear lift window similar to a defogger grid. This antenna is used to receive both AM and FM signals. The secondary antenna is attached to the windshield in the same manner as the primary antenna. This antenna is used to receive only FM (diversity) signals. The antenna reception signals are sorted by a reception processing module. The module then sends the clearest, strongest signal to the radio control.

Multipath or signal flutter is the quickly fading in and out of FM radio signal reception. Multipath or signal flutter most often occurs in down -town areas or wherever large obstructions are present. A radio signal reflects off of buildings at various angles. When one signal crosses paths with a same signal (at a different angle) they will cancel each other out. The signal will be received and then not received very rapidly by a vehicle audio system. This causes a fluttering effect to be heard through a vehicle's speakers. With the Corvette diversity antenna system one of the two antennas will virtually always receive a strong signal and widely limit multipath.