FCC ID:K6630393X20
IC: 511B-30393X20
Alignment
Vertex Standard Co.,Ltd.
2
Alignment
Preparation
&
Precautions
A
dummy
load
and
inline
wattmeter
must
be
connected
to
the
main
antenna
jack
in
all
procedures
that
call
for
transmission,
except
where
specified
otherwise.
Correct
alignment
is
not
possible
with
an
antenna.
After
completing
one
step,
read
the
following
step
to
determine
whether
the
same
test
equipment
will
be
required.
If
not,
remove
the
test
equipment
(except
dummy
load
and
wattmeter,
if
connected)
before
proceeding.
Correct
alignment
requires
that
the
ambient
temperature
be
the
same
as
that
of
the
transceiver
and
test
equipment,
and
that
this
temperature
be
held
constant
between
68
°F
and
86
°F
(20
°C
and
30
°C).
When
the
transceiver
is
brought
into
the
shop
from
hot
or
cold
air
it
should
be
allowed
some
time
for
thermal
equalization
with
the
environment
before
alignment.
If
possible,
alignments
should
be
made
with
oscillator
shields
and
circuit
boards
firmly
affixed
in
place.
Also,
the
test
equipment
must
be
thoroughly
warmed
up
before
beginning.
Note:
Signal
levels
in
dB
referred
to
in
this
procedure
are
based
on
0
dB
μ
=
0.5
μ
V(closed
circuit).
Notice
:
Do
not
change
the
adjustment
item
except
those
written
in
the
following
adjustment
procedures.
Entering
the
Alignment
mode
Press
and
hold
in
the
[
H/L
],
[
S
]
and
[
CLR
]
keys
while
turn
the
transceiver
on
to
enter
the
alignment
mode.
PLL
Section
PLL
Reference
Frequency
Adjustment
Connect
the
wattmeter,
dummy
load,
and
frequency
counter
to
the
antenna
jack.
Press
the
[
S
]
or
[
T
]
key
to
select
the
display
to
“
REF
”.
Press
the
[
SQL
]
key,
then
press
the
[
H/L
]
key
to
enable
adjustment
of
the
PLL
Reference
Frequency.
Press
the
PTT
key
to
transmit
the
transceiver,
if
necessary,
press
the
[
S
]
or
[
T
]
key
to
adjust
the
frequency
so
the
counter
frequency
is
156.800
MHz
(±100
Hz).
Press
and
hold
the
[
H/L
]
key
for
2
seconds
to
save
the
new
setting.
Press
the
[
CLR
]
key
to
exit
from
this
alignment
item.
Receiver
Section
Squelch
Gain
Adjustment
Referring
to
the
“
Receiver
Section
Alignment
Setup
”
on
the
next
page,
connect
the
RF
Signal
Generator
to
the
antenna
jack,
and
connect
the
DC
voltmeter
to
TP1032
.
Press
the
[
S
]
or
[
T
]
key
to
select
the
display
to
“
GAIN
”.
Press
the
[
SQL
]
key
to
enable
adjustment
of
the
Squelch
Gain
level.
Press
the
[
S
]
or
[
T
]
key
to
select
a
small
character
of
lower
right
corner
of
the
display
to
“
C
”.
Set
the
RF
Signal
Generator
output
level
0
dB
μ
V
(with
a
standard
FM
modulation:
±3.0
kHz
deviation
@
1
kHz)
at
156.800
MHz.
Press
the
[
H/L
]
key,
then
press
the
[
S
]
or
[
T
]
key
so
that
the
DC
voltmeter
reading
is
0.3
V
(±0.05
V).
Press
and
hold
the
[
H/L
]
key
for
2
seconds
to
save
the
new
setting
at
the
band
center.
Press
the
[
S
]
key
to
change
the
“
C
”
character
to
“
H
”
at
the
lower
right
corner
of
the
display.
