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:
The radio, steering wheel radio controls (if
equipped), and 6 disc CD/DVD changer (if equipped)
will remain active for up to 10 minutes after the ignition
switch has been turned off. Opening a vehicle front door
will cancel this feature.
UNDERSTANDING YOUR INSTRUMENT PANEL
221
4
Summary of Contents for Dodge Caravan 2007
Page 2: ......
Page 5: ...INTRODUCTION 5 1 ...
Page 8: ......
Page 120: ...120 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Page 121: ...UNDERSTANDING THE FEATURES OF YOUR VEHICLE 121 3 ...
Page 122: ...122 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Page 202: ......
Page 208: ...INSTRUMENT PANELS AND CONTROLS 208 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Page 209: ...BASE INSTRUMENT CLUSTER UNDERSTANDING YOUR INSTRUMENT PANEL 209 4 ...
Page 210: ...INSTRUMENT CLUSTER WITH TACH 210 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Page 306: ......
Page 335: ...STARTING AND OPERATING 335 5 ...
Page 393: ...Jack Engagement Locations WHAT TO DO IN EMERGENCIES 393 6 ...
Page 402: ...Jack Engagement Locations 402 WHAT TO DO IN EMERGENCIES ...
Page 414: ...2 4L ENGINE Engine Compartment 2 4L Engine 414 MAINTAINING YOUR VEHICLE ...
Page 415: ...3 3L 3 8L ENGINES Engine Compartment 3 3L 3 8L Engines MAINTAINING YOUR VEHICLE 415 7 ...
Page 464: ......
Page 484: ......
Page 494: ......
Page 495: ...INDEX 10 ...