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Plessey PRC 320/1 - Page 44

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2.15
Тһе
dipole
configurations
which
give
best
results
at
maximum
range
are
shown
in
Fig.11.
The
setting
up
procedure
for
these
configurations
is
as
follows:-
2.15.1
Establish
the
required
length
of
each
dipole
element
from
the
table
on
the
case
of
the
RT320/1.
2.15.2
Unwind
the
required
lengths
of
antenna
wire
from each
bobbin
and
tie
off
with
a
double
loop
or
clove
hitch
so
that
the
coloured
length
marked
is
just
free
of
the
knot.
2.15.5
Erect
the
horizontal
dipole
as
shown
in
Fig.11
(the
side
of
а
house
or
wall
could
be
used
instead
of
a
tree),
using
a
suitable
weight,
such
as
a
jack
knife,
on
the
throwing
cord
to
get
the
wire
or
cord
through
the
branches
of
the
tree.
Tie
off
the
cord
in
the
same
way
as
the
antenna
wire.
2.15.4
When
only
a
5.4m
mast
is
available
to
Support
the
antenna,
a
centre
supported
dipole
can
be
used.
This
dipole
is
erected
as
shown
in
Fig.11
and
the
dipole
centre
junction
is
secured
to
the
top
of
the
mast
with
a
length
of
cord.
The
bobbins
of
the
wire
antennas
are
Supported
by
securing
the
throwing
cords
to
the
Spare
stakes
included
in
the
mast
kit.
2.15.5
Remove
the
coaxial
link
between
the
RT320/1
INT
TUNER
and
T/R
sockets
and
connect
the
latter
to
the
dipole
centre
junction
by
means
of
the
antenna
feeder
cable.
Ensure
that
no
strain
is
applied
to
the
terminals
and
32