AOR AR2000 - Key Functions: INC, BANK, Modes, LOCKOUT; Key Functions: DELAY, HOLD, DOWN, KEY LOCK; Basic Operation Procedures; Initial Setup and Power On

AR2000
Operating
manual
Page
5
Sel
INC
Used
to
enter
the
desired
tuning
increment
(step)
while
in
manual
or
search
modes.
BANK
Used
to
select
the
desired
BANK
while
in
scan
or
search
mode.
AM/FM
Selects
either
AM
(amplitude
modulation)
or
FM
(frequency
modulation).
AM
is
generally
used
by
aircraft
both
on
VHF
and
UHF,
FM
is
used
by
most
other
services.
W-FM
Selects
W-FM
(wide
band
frequency
modulation).
Mainly
used
by
VHF
stereo
broadcast
stations.
LOCKOUT
Press
once
to
lock
out
a
frequency
or
memory
channel.
Pressing
a
second
time
generally
unlocks
the
frequency
or
memory
channel.
This
key
has
multiple
functions
so
be
careful
with
its
use.
Up
to
100
frequencies
in
each
of
the
10
search
banks
can
be
locked
out,
a
total
of
1000
frequencies.
It
is
possible
by
miss-operation,
to
inadvertently
lock
out
an
entire
search
bank
instead
of
a
single
frequency.
Once
a
complete
search
bank
is
locked
out
it
requires
EVERY
SINGLE
FREQUENCY
LOCKED
OUT
of
the
search
bank
to
be
unlocked
before
the
bank
can
be
searched
again.
There
are
other
ways
to
limit
the
banks
omitted
in
search
and
scan
mode.
DELAY
Used
in
scan
and
search
modes
to
select
DELAY
and
HOLD.
When
HOLD
Is
shown
on
the
display,
the
scan
or
search
stops
on
a
busy
channel
and
remains
there
even
if
the
signal
has
gone.
When
DELAY
is
shown
on
the
display,
the
scan
or
search
stops
and
pauses
on
a
busy
channel
for
a
couple
of
seconds
before
automatically
moving
off
again.
W
The
DOWN
key
causes
the
scan
or
search
to
reverse
from
its
usual
ascending
operation
and
move
downwards.
Holding
the
key
for
more
than
a
second
while
the
receiver
is
stopped
in
scan
or
search
mode
causes
the
receiver
to
continue
operation
but
in
a
downward
direction.
KEY
LOCK
This
key
disables
all
other
keyboard
functions.
The
facility
is
handy
if
the
receiver
is
required
to
operate
on
a
single
channel]
and
is
located
in
a
coat
pocket.
Accidental
change
of
frequency
or
mode
is
prevented.
Pressing
the
key
a
second
time
cancels
the
function.
After
unpacking
the
receiver,
the
batteries
should
be
charged
or
a
fully
charged
set
fitted.
You
may
also
connect
the
receiver
to
an
external
DC
supply
using
the
supplied
DC
lead.
The
receiver
should
be
switched
on
by
rotating
the
volume
control
in
a
clockwise
direction
from
the
‘off’
position.
With
the
squelch
control
turned
fully
anti-clockwise
to
allow
sound
from
the
speaker,
the
volume
should
be
adjusted
to
a
comfortable
level.
It
is
never
a
good
idea
to
switch
on
the
receiver
with
an
earphone
connected.
The
squelch
control
should
be
rotated
clockwise
until
the
background
noise
is
just
cancelled.
This
is
known
as
‘threshold’
and
is
the
most
sensitive
setting
for
the
squelch
control.
If
you
find
setting
the
squelch
difficult,
try
removing
the
aerial
from
the
receiver.
It
is
best
to
press
the
MANUAL
key
at
this
time
to
place
the
receiver
ina
known
state
of
operation.
©1991 AOR Ltd.