ANTENNAS
Use the Dip Meter in the
injection mode. When
you couple
to an antenna, the meter
should be coupled
at the low
impedance or high current
point as shown in
Figure
3-6.
For
a
half-wave antenna,
this point is
at
the center, and
for
longer wires, it
is at points of odd quarter
wavelengths, as
measured from
either end of
the
antenna.
A full-wave
antenna
will not be a half wave
at its half-resonant point.
This is because end effects
are
only
at the ends of the
antenna, and will
be
absent
at other points when
the
antenna
is a
full-wave
length, or longer.
The antenna should
be
positioned as near its operating
location as possible under
the conditions
desired during operation.
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