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INSTALLATION
This antenna fits a 2
11
O.D
. mast. A 2
11
O.
D.
gal-
vanizedpipeis recommendedfor a sturdymast.
Mount the
antenna
in
the
clear. Surrounding
objects-particularly power lines and
other
ob-
jects
of
considerable mass
or
length-are
detrimental
to
the
performance
of
the antenna.
WARNING
Do
not
allow any part
of
the antenna to
touch power lines. This could cause severe
bums
or
fatal injuries.
When mounting
the
214FM with an
HF
beam
antenna
on
the
same
mast,
the
214FM should
be
on
top.
If
the
214FM is to
be
vertically
polarized, separation of
the
two antennas
should
be
at
least 2 feet.
If
the
214FM is
to
be
horizontally polarized, separation should
be
at
least6feet.
The
mast,
if
metallic, should never
be
run
com-
pletely through
the
plane
of
the
elements.
Slightly reduced performance will
be
noticed if
a vertically polarized 214FM is mounted
at
the
top
of a metallic mast as shown
in
Figure
1.
Horizontally polarized mountingwill
not
be
af
-
fected.
For
optimum performance with a
vertically polarized 214FM, a wooden mast
should be used, and
the
coax routed past the
reflector
then
dropped
to
the
mast.
The
antenna can
be
mounted either vertically
or
horizontally for
FM
or
SSB/CW operation
respectively. Circular polarization can
be
ob-
tained
by
using two yagis.
For
information
about which polarization
to
use, consult local
Amateurs who
use
the frequencies you desire.
-4-
STEP-BY-STEP
ASSEMBLY
Remove
the
parts
from
the
carton
and
check
them
against
the
Parts
List
and
the
illustrations
.
Select
the
boom-to-
mast
backup
plate
(Item
No. 6),
the
boom
-
to
-
mast
clamp
(Item
No
. 5)
and
the
four
(4
) ¼"-20 x
¾"
bolts,
¼"
lockwashers
and
nuts
(Item
Nos.32, 33
&
34).
Place
the
boom-to-
mast
clamp
on
the
boom
as
shown
in
Figure
6.
The
front
and
rear
boom
sections
should
meet
in
the
middle
of
the
boom-to-
mast
clamp.
Use
the
¼"-20 x ¾"
bolts
in
the
outside
holes
.
Leave
the
inside
holesfor
the
two
(2) U-bolts,
which
willbeused
later
for
mounting
the
mast.
Select
either
the
vertical
or
horizontal
mounting
position.
Adjust
the
boom
accordingly
before
tightening
the
bolts
securely.
Select
3
/i6"
x
39
½"
Rl
aluminum
tubing
(Item
No. 7).
Use
a pencil
to
place
a
mark
at
the
center
of
the
tubing
(19¾" from
either
end).
Pla
ce
two
more
marks
5
/s
" from
each
side
of
the
cent
er
mark.
Place
a #10-24x 1½"
eyebolt(Item
No.27)
into
the
Rl
slot
as
shown
in
Figure
6, Detail A.
Slide
the
Rl
through
the
holes
and
the
eye
bolt
until
the
outer
two
marks
on
theRl
are
visible
on
each
side
of
the
boom. Slip
on
an
aluminum
half
washer
(Item
No
. 23), a
lockwasher
(Item
No. 30)
and
a #10
nut
(Item
No. 31).
Tighten
it
just
enough
to
hold
the
rod
securely. DO
NOT
OVERTIGHTEN.
