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AM / FM / SW
Active Antenna:
This circuit
shows an active
antenna that can
be used for AM,
FM, and
shortwave SW. On
the shortwave
band this active
antenna is
comparable to
a20 to30 foot
wire antenna.
This circuit
uses receivers
that use untuned
wire antennas,
such as
inexpensive
units and car
radios. L1 can
be selected for
the application
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