
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.
220
UNDERSTANDING YOUR INSTRUMENT PANEL
Содержание 2007 Town and Country
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Страница 206: ...INSTRUMENT PANELS AND CONTROLS 206 UNDERSTANDING YOUR INSTRUMENT PANEL I n f o r ma t i o nP r o v i d e db y ...
Страница 207: ...BASE INSTRUMENT CLUSTER UNDERSTANDING YOUR INSTRUMENT PANEL 207 4 I n f o r ma t i o nP r o v i d e db y ...
Страница 208: ...INSTRUMENT CLUSTER WITH TACH 208 UNDERSTANDING YOUR INSTRUMENT PANEL I n f o r ma t i o nP r o v i d e db y ...
Страница 209: ...PREMIUM INSTRUMENT CLUSTER UNDERSTANDING YOUR INSTRUMENT PANEL 209 4 I n f o r ma t i o nP r o v i d e db y ...
Страница 302: ...I n f o r ma t i o nP r o v i d e db y ...
Страница 331: ...STARTING AND OPERATING 331 5 I n f o r ma t i o nP r o v i d e db y ...
Страница 378: ...I n f o r ma t i o nP r o v i d e db y ...
Страница 389: ...Jack Engagement Locations WHAT TO DO IN EMERGENCIES 389 6 I n f o r ma t i o nP r o v i d e db y ...
Страница 398: ...Jack Engagement Locations 398 WHAT TO DO IN EMERGENCIES I n f o r ma t i o nP r o v i d e db y ...
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