(1) Aim the vehicle to the distant station.
See figure 74.
(2)
Select a frequency as near the FOT as possible, not the
doublet's
LUF.
A frequency above 10 MHz might be possible to take
advantage
of the ground wave (terrain permitting) if stations are
within 25
miles of one another.
(3) Add three additional mast sections (24 feet) so that the
whip will be near a quarter-wave in length. If time permits, use a
counterpoise or radial ground system.
If using ground wave, make
sure antenna is completely straight. If sky wave is to be used, bend
the antenna at a 45-degree angle.
If no contact try a better
antenna-slant wire.
(4) Select a hill or a flat clear area.
Make a good ground
connection.
(5) If time permits, install
a
"quickie"
antenna
such
as
a
sloping antenna. See figure 77.
Figure 74.
Vehicle chassis counterpoise.
104
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