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Those bands cover these frequen-
cies:
AM band: 530 to 1,710 kilohertz
FM band: 87.7 to 107.9 megahertz
Driving very near the transmitter of
a station that is broadcasting on a
frequency close to the frequency of
the station you are listening to can
also affect your radio’s reception.
You may temporarily hear both
stations,orhearonlythestationyou
are close to.
The radio can receive the complete
AM and FM bands.
How well the radio receives stations
is dependent on many factors, such
as the distance from the station’s
transmitter, nearby large objects,
and atmospheric conditions.
A radio station’s signal gets weaker
as you get farther away from its
transmitter. If you are listening to an
AM station, you will notice the sound
volume becoming weaker and the
stationdriftinginandout.Ifyouare
listening to an FM station, you will
see the stereo indicator flickering off
and on as the signal weakens.
Eventually, the stereo indicator will
go off and the sound will fade
completely as you get out of range of
the station’s signal.
Radio stations on the AM band are
assigned frequencies at least 10
kilohertz apart (530, 540, 550).
Stations on the FM band are
assigned frequencies at least 0.2
megahertz apart (87.9, 88.1, 88.3).
Stations must use these exact
frequencies. It is fairly common for
stations to round-off the frequency in
their advertising, so your radio could
display a frequency of 100.9 even
though the announcer may identify
the station as ‘‘FM101.’’
Radio Frequencies Radio Reception
AM/FM Radio Reception
176
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