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AM broadcasts can be received at
greater distances than FM broad-
casts. This is because AM radio
waves are transmitted at low fre-
quencies. These long distance, low
frequency radio waves can follow the
curvature of the earth rather than
travelling straight. In addition, they
curve around obstructions resulting
in 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 within short distances
from the station.Also, FM signals are
easily affected by buildings, moun-
tains, and obstructions.This can lead
to undesirable or unpleasant listen-
ing conditions which might lead you
to believe 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 sig-
nal 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
until the disturbance clears.
4-6
Multimedia System
JBM003
FM radio station
JBM004JBM002
AM reception
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