OPERATING TIPS
FOR AUDIO SYSTEM
Warning!
ALWAYS drive safely with your hands on
the wheel. You have full responsibility
and assume all risks related to the use of
the features and applications in this vehicle.
Only use these features and applications
when it is safe to do so. Failure to do
so may result in an accident involving
serious injury or death.
Note:
For the purpose of safe driving,
lower the audio volume so you can hear
sounds outside of the vehicle, including
car horns and emergency vehicle
sirens.
To prevent the battery discharge,
do not leave the audio system on for a
long period of time when the engine
is not running.
If a cellular phone or CB radio is
used in or near the vehicle, it could
cause noise to occur from the audio
system. This does not indicate that the
system has been damaged.
Do not spill any liquid on the audio
system.
RADIO RECEPTION
AM Characteristics
AM signals bend around such things as
buildings or mountains and bounce
off the ionosphere.
They can reach longer distances than
FM signals.
Because of this, two stations may
sometimes be picked up on the same
frequency at the same time.
FM Characteristics
An FM broadcast range is usually about
25 – 30 mi (40—50 km) from the
source. Because of extra coding
needed to break the sound into two
channels, stereo FM has even less
range than monaural (non-stereo) FM.
Signals from an FM transmitter are
similar to beams of light; they do not
bend around corners, but they do
reflect.
Unlike AM signals, FM signals cannot
travel beyond the horizon. Therefore,
FM stations cannot be received as
far as AM reception.
Atmospheric conditions can also affect
FM reception. High humidity will cause
poor reception. However, cloudy days
may provide better reception than clear
days.
Multipath Noise
Since FM signals can be reflected by
obstructions, it is possible to receive
both direct signal and reflected signal at
the same time. This causes a slight
delay in reception and may be heard as
a broken sound or a distortion. This
problem may also be encountered
when in close proximity to the
transmitter.
Flutter/Skip Noise
Signals from an FM transmitter move in
straight lines and become weak in
valleys, between tall buildings,
mountains, and other obstacles. When
a vehicle passes through such an
area, the reception conditions may
change suddenly, resulting in annoying
noise.
5
FIAT
Radio
3.0
