SAAB WIS ONLINE

Aerial system

Aerial system





Aerials

The aerials for radio reception are integrated with the rear window and are located as follows:


• the AM aerial is placed at the top of the rear window;

• the FM aerial(s) is/are integrated with the heating element.


The rear window is the same for all markets.

The aerial signal is amplified by an amplifier located on the right-hand C-pillar. There are two different types of aerial amplifier for the Premium/Prestige models, depending on the market in question: one is black, the other red. The Popular model uses the black design.

The aerial amplifier is supplied with trigger voltage by pin 7 in the main unit and grounded by being bolted to the chassis.

The black variant is used for post-assembly-line fitting in all markets.

On the left C-pillar is an aerial filter which grounds the electric heating element but blocks the aerial signal from ground. The aerial filter is standard in all cars.



Aerial system 1, black version



1. AM aerial in a separate loop at the top of the rear window.

2. FM1 aerial coupled with the electric heating element.

To prevent the aerial signal being emitted when power is supplied to the electric heating element, a filter is fitted in the aerial amplifier to block the aerial signal. On the ground side of the heating element is an aerial filter which blocks the aerial signal from ground.

3. The electrically heated rear window is connected to the aerial amplifier and filter. A capacitor prevents the voltage from reaching the aerial amplifier. The electrically heated rear window is grounded through the aerial filter.


The amplified aerial signal is supplied to the radio via the coaxial cable.

Aerial system 2, red version



1. AM aerial in a separate loop at the top of the rear window.

2. FM1 aerial coupled with the electric heating element.

To prevent the aerial signal being emitted when power is supplied to the electric heating element, a filter is fitted in the aerial amplifier to block the aerial signal. On the ground side of the heating element is an aerial filter which blocks the aerial signal from ground.

3. FM2 aerial connected to the same connector as the AM aerial on the rear window. It is connected to a loop across the AM aerial and to the electric heating element.

4. The electrically heated rear window is connected to the aerial amplifier and filter. A capacitor prevents the voltage from reaching the aerial amplifier. The electrically heated rear window is grounded through the aerial filter.


The aerial amplifier contains a changeover function which works with the radio to select the best FM signal (selects FM1 or FM2).

The amplified aerial signal is supplied to the radio via the coaxial cable.