Kia Stonic, Owner'S Manual, Page: 213 / 514

How vehicle audio works
AM and FM radio signals are broadcast
from transmitter towers located
around your city. They are intercepted
by the radio antenna on your vehicle.
This signal is then received by the radio
and sent to your vehicle speakers.
When a strong radio signal has reached
your vehicle, the precise engineering of
your audio system ensures the best
possible quality reproduction. However,
in some cases the signal coming to your
vehicle may not be strong and clear.
This can be due to factors, such as the
distance from the radio station, close‐
ness of other strong radio stations or
the presence of buildings, bridges or
other large obstructions in the area.
AM broadcasts can be received at
greater distances than FM broadcasts.
This is because AM radio waves are
transmitted at low frequencies. These
long, low frequency radio waves can
follow the curvature of the earth rath‐
er than travelling straight out into the
atmosphere. In addition, they curve
around obstructions so that they can
provide better signal coverage.
FM broadcasts are transmitted at high
frequencies and do not bend to follow
the earth's surface. Because of this, FM
broadcasts generally begin to fade at
short distances from the station. Also,
FM signals are easily affected by build‐
ings, mountains, or other obstructions.
These can result in certain listening
conditions which might lead you to be‐
lieve a problem exists with your radio.
The following conditions are normal and
do not indicate radio trouble:
5-03
5
Audio system