Traffic Message Channel Module (TMC) (2006-2007): Design: Antenna

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2013 Volvo C70, 2012 Volvo C70, 2011 Volvo C70, 2010 Volvo C70, and 2009 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Antenna For C70

Courtesy of VOLVO CARS CORPORATION

On the S40 a combined AM/FM (main and sub) and TMC-antenna is used. The antenna is integrated in the rear windshield.

There is a combined AM/FM main antenna integrated in the right door window. There is also an antenna for FMsub, which s a combined FMsub/TMC antenna integrated in the rear window.

On the C70 there are two antennas. A combined AM/FM rod antenna, which is integrated on the rear right-hand side. An FMsub antenna, which is a combined FMsub/TMC antenna and is behind the bumper.

The frequency range of the antenna is 87.5 - 108.0 MHz.

The signals from the antenna are amplified or adjusted by an antenna amplifier.

The antenna amplifier transmits TMC/FM sub-signals on to the Traffic message channel module (TMC). The FM sub-signals are then transmitted to the AM/FM tuner module (AFM) (applies to vehicles with structure week up to and including 200445) or Integrated Audio Module (IAM) (applies to vehicles with structure week from and including 200446).