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 radio station
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:
• Fading - As your vehicle moves away
from the radio station, the signal will
weaken and sound will begin to fade.
When this occurs, we suggest that
you select another stronger station.
• Flutter/Static - Weak FM signals or
large obstructions between the
transmitter and your radio can dis‐
turb the signal causing static or flut‐
tering noises to occur. Reducing the
treble level may lessen this effect un‐
til the disturbance clears.
5-05
5
Audio system
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