you understand and save you concern about these “ap-
parent” malfunctions, you must understand a point or
two about the transmission and reception of radio sig-
nals.
Two Types of Signals
There are two basic types of radio signals... AM or
Amplitude Modulation, in which the transmitted sound
causes the amplitude, or height, of the radio waves to
vary... and FM or Frequency Modulation, in which the
frequency of the wave is varied to carry the sound.
Electrical Disturbances
Radio waves may pick up electrical disturbances during
transmission. They mainly affect the wave amplitude,
and thus remain a part of the AM reception. They
interfere very little with the frequency variations that
carry the FM signal.
AM Reception
AM sound is based on wave amplitude, so AM reception
can be disrupted by such things as lightning, power lines
and neon signs.
FM Reception
Because FM transmission is based on frequency varia-
tions, interference that consists of amplitude variations
can be filtered out, leaving the reception relatively clear,
which is the major feature of FM radio.
NOTE:
On vehicles so equipped the radio, steering
wheel radio controls and 6 disc CD/DVD changer will
remain active for up to 45 seconds after the ignition
switch has been turned off. Opening a vehicle front door
will cancel this feature.
UNDERSTANDING YOUR INSTRUMENT PANEL
213
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Содержание 2006 Caravan
Страница 2: ......
Страница 5: ...INTRODUCTION 5 1...
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Страница 114: ...114 UNDERSTANDING THE FEATURES OF YOUR VEHICLE...
Страница 115: ...UNDERSTANDING THE FEATURES OF YOUR VEHICLE 115 3...
Страница 116: ...116 UNDERSTANDING THE FEATURES OF YOUR VEHICLE...
Страница 194: ......
Страница 201: ...INSTRUMENTS AND CONTROLS UNDERSTANDING YOUR INSTRUMENT PANEL 201 4...
Страница 202: ...BASE INSTRUMENT CLUSTER 202 UNDERSTANDING YOUR INSTRUMENT PANEL...
Страница 203: ...INSTRUMENT CLUSTER WITH TACH UNDERSTANDING YOUR INSTRUMENT PANEL 203 4...
Страница 327: ...STARTING AND OPERATING 327 5...
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Страница 375: ...Jack Engagement Locations WHAT TO DO IN EMERGENCIES 375 6...
Страница 384: ...Jack Engagement Locations 384 WHAT TO DO IN EMERGENCIES...
Страница 396: ...2 4L ENGINE Engine Compartment 2 4L Engine 396 MAINTAINING YOUR VEHICLE...
Страница 397: ...3 3L 3 8L ENGINES Engine Compartment 3 3L 3 8L Engines MAINTAINING YOUR VEHICLE 397 7...
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Страница 481: ...INDEX 10...
Страница 500: ...500 INDEX...
Страница 501: ...NOTES...
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