Operating Tips for Audio System- Page 253

2010 Mazda CX-7 Owners Manual

Model Year
2014 Dodge Charger SRT Owner Manual

Table of Contents

9. Customer Information and Reporting Safety Defects
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Black plate (253,1)

Operating Tips for Audio
System

WARNING

Do not adjust the audio control
switches while driving the vehicle:

Adjusting the audio while driving the
vehicle is dangerous as it could
distract your attention from the
vehicle operation which could lead to
a serious accident. Always adjust the
audio while the vehicle is stopped.
Even if the audio control switches are
equipped on the steering wheel, learn
to use the switches without looking
down at them so that you can keep
your maximum attention on the road
while driving the vehicle.

CAUTION

For the purposes of safe driving,
adjust the audio volume to a level
that allows you to hear sounds
outside of the vehicle including car
horns and particularly emergency
vehicle sirens.

NOTE

l

To prevent the battery from being
discharged, do not leave the audio system
on for a long period of time when the
engine is not running.

l

If a cellular phone or CB radio is used in
or near the vehicle, it could cause noise to
occur from the audio system, however, this
does not indicate that the system has been
damaged.

q

Radio Reception

AM characteristics

AM signals bend around such things as
buildings or mountains and bounce off the
ionosphere. Therefore, 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.

Station 2

Station 1

Ionosphere

FM characteristics

An FM broadcast range is usually about
40

―

50 km (25

―

30 miles) 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.

FM Station

40—50km 
(25—30 miles)

Interior Comfort

Audio System

6-15

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