FAW Jilin Automobile Xenia S80, Руководство пользователя

Страница: 142 / 262

7-40
Multi-path
Transmitting antenna
Direct radio signals
Reflected radio signals
FM radio signals may be reflected when they
impact against buildings or mountains.
When the antenna of automobile captures
simultaneously direct radio signals and reflected
radio signals, “hoot hoot” sounds may be heard, or
the voice of narratress may get hoarse.
That phenomenon is referred to “multi-path”
distortion.
Comparatively speaking, that type of phenomena
may seldom take place. To avoid that phenomenon,
your automobile must be driven out of the areas.
How to receive radio signals in case of noise
interference
When noise interference occurs, treble control shall
be adopted to reduce the treble. In this way, the
intension of noises may be reduced, such that the
voice may get harmonic.
The radio is equipped with an ASC (auto sound
track separation control) electric circuit. When
your automobile reaches areas with minor radio
signals, the circuit may automatically reduce the
degree of separation of stereo so as to raise the
S/N(sign/noise) ratio.
When your automobile reaches an area where
intensive radio signals may be received, the
degree of separation of stereo may be increased.