CUSHCRAFT ARX-2B - Mast Requirements; Antenna Location Considerations; Antenna Mounting Guidance; Antenna Assembly Steps

Your
Cushcraft
Ringo
Ranger
Il
is
designed
and
manufactured
to
give
top
performance
and
trouble
free
service.
The
antenna
will
perform
as
specified
if
the
instructions
and
suggestions
are
followed
and
care
is
used
in
assembly
and
installation.
MASTING
The
ARX2B
and
ARX-220B
will
take
up
to
a
13/2”
(3.5cm)
OD
mast.
This
is
a
close
tolerance
“slip
fit".
Make
sure
your
mast
and
base
bottom
tube
are
smooth,
round
and
free
of
any
dirt
or
binding
may
occur.
For
most
installations
a
11/."
(3.2cm)
OD
TV
type
mast
will
be
satisfactory.
A
total
of
55”
{139.7cm)
of
exposed
mast
is
necessary
to
install
the
ARX-2B,
The
ARX-220B
requires
38”
(91.4
CM).
LOCATION
Location
of
the
antenna
is
very
important.
Surrounding
objects
such
as
trees,
power
lines,
other
antennas,
etc.
will
seriously
reduce
efficiency.
To
minimize
the
effects
of
surrounding
objects,
mount
the
antenna
as
high
and
in
the
clear
as
possible,
If
metal
guy
wires
are
used,
they
should
be
at
minimum,
6’
below
your
radials.
WARNING:
THIS
ANTENNA
|S
AN
ELECTRICAL
CONDUCTOR,
CONTACT
WITH
POWER
LINES
CAN
RESULT
IN
DEATH,
OR
SERIOUS
INJURY.
DO
NOT
INSTALL
THIS
ANTENNA
WHERE
THERE
tS
ANY
POSSIBILITY
OF
CONTACT
WITH
HIGH
VOLTAGE
ARC-OVER
FROM
POWER
CABLES
OR
SERVICE
DROPS
TO
BUILDINGS.
THE
ANTENNA,
SUPPORTING
MAST
AND/OR
TOWER
MUST
NOT
BE
CLOSE
TO
ANY
POWER
LINES
DURING
INSTALLATION
REMOVAL
IN
THE
EVENT
PART
OF
THE
SYSTEM
SHOULD
ACCIDENTALLY
FALL,
FOLLOW
THE
GUIDELINES
FOR
ANTENNA
INSTALLATIONS
RECOMMENDED
BY
THE
U.S.
CONSUMER
PRODUCT
SAFETY
COMMISSION
AND
LISTED
IN
THE
ENCLOSED
PAMPHLET,
MOUNTING 7
Mount
the
antenna
clear
of
surrounding
objects,
the
higher
the
better.
Your
Ringo
Ranger
may
be
mounted
only
a
few
feet
above
a
horizontally
potarized
beam
antenna.
When
side
mounting
your
Ringo
Ranger
tl
on
a
tower,
it
should
be
spaced
1/2
wave-length
out
from
the
tower.
ANTENNA ASSEMBLY
Attach
the
tuning
ring
(GG)
as
shown
in
figure
4.
Assemble
the
tuning
rod
clamp
(67),
place
it
over
the
tuning
ting
(GG)
and
slide
the rod
(97)
through
it.
Attach
the
flattened
end
to
the
coax
connector.
Be
sure
the
tuning
rod
is
on
the
side
of
the
base
shown
in
figure
1.
Using
figure
3
assemble
the
radiating
section.
Each
tube
is
inserted
into
the
previous
tube
approximately
3
inches
(7.5
cm},
Ta
assemble
the
phasing
section,
loosen
the
3/4”
screws
in
the
insulator.
Then
insert
both
forks
of
the
phasing
section
(FF)
through
the
holes.
Finger
tighten
the
screws
for
naw.
Adjust
the
dimensions
A,
6,
and
C
using
Chart
A.
Tighten
all
fasteners
snugly.
Assembie
the
radial
ring
as
shown
in
figure
2.
Then
slide
it
into
position
and
attach
the
hardware
shown.
BE
VERY
CAREFUL
NOT
TO
OVERTIGHTEN
THE
RADIAL
RODS
{JJ}
OR
THEIR
CLAMPING
NUTS
(85).
Over
tight-
ening
may
cause
permanent
unwarranteed
damage.
Install
the
coaxial
cable
(HH)
between
the
tuning
ring
{GG)
and
the
radial
ring
(KK).
Coat
the
outside
of
all
three
aluminum
connector
threads
and
three
PL-259s
with
silicone
grease
provided.
Do
not
coat
the
connector
center
pins
and
sockets
with
silicone.
Tighten
all
connections.
Slide
the
vinyl
boots
over
the
connectors
and
against
the
plates
for
a
good
weather-tight
connection.
Follow
the
same
procedure
for
your
50
ohm
coaxial
feedcable,
and
be
sure
to
slide
the
vinyl
boot
over
the
cable
before
attaching
the
PL-259
connector.
Cable
fosses
increase
with
trequency,
so
use
a
“low
loss”
cable
type.
Vf
you
plan
to
install
the
antenna
in
a
salty
or
corrosive
environment,
you
may
want
to
consider
coating
it
with
clear
marine
varnish
or
equivalent.
TUNING
Testing
and
adjustment
may
be
done
on
the
ground
using
just
8’
to
10’
of
mast.
Attach
a
good
quality
VSWR
Bridge
toa
coaxial
cable
as
close
to
the
antenna
as
practical
but
stand
six
feet
away
when
taking
readings.
Note
the
VSWR
at
your
frequency.
Move
the
tuning
rod
1/4"
(1/2
cm)
in
either
direction.Tighten
the
screws
and
note
your
VSWR.
If
the
VSWR
has
increased,
move
the
rod
in
the
opposite
direction
and
remeasure
your
VSWR.
WW
the
VSWR
has
decreased
continue
in
the
same
direction
until
a
minimum
has
been
reached.
If
the
VSWR
is
still
above
1.5,
re-check
and
adjust
dimensions
A,
B
and
C
for
your
frequency.