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Audio system
54
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, low frequency
radio waves can follow the curvature
of the earth rather than travelling
straight out into the atmosphere. In
addition, they curve around obstruc-
tions 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 eas-
ily affected by buildings, mountains,
or other obstructions. These can
result in certain listening 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
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
fluttering noises to occur.Reducing
the treble level may lessen this
effect until the disturbance clears.
JBM002
AM reception
JBM003
FM radio station
JBM004
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