Radio Reception - Mazda 323F Owner's Manual

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Radio Reception

•
AM (Amplitude Modulation)
Characteristics
.... Station mixing
AM signals bend around weh 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 f requency at the
sallle time.
4-46
•
I'M (Frequency Modulation)
Characteristics
An FM broadcast range is u�ually about
km miles) from the
40-50 (25-30
source. Ilec;mse of extra coding needed to
break the sound into two channels, stereo
FM has even less range than monaural
FM.
(nonstereo)
FM
Signals from an transmitter are
10 beams oflighl because they do
;!(ound corners. but they do reflect.
AM signals. FM signals cannot
yond the horizon. Therefore. FM
aI
c:mnol be received the great
possible with reception.
A M
, ; H,,",
,", ,,
A tmosphcric mod
reception. High humidity will cause
reception. However. cloudy days
vide beUer reception than clear dayS
,
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