SQUELCH
ADJUSTMENT
The
Squelch
control
eliminate annoying background noise in the absence
of
sig-
nals.
To
adjust
the
SQUELCH
control properly
turn
up
VOLUME
until back-
ground noise
is
heard. Rotate the SQUELCH slowly clockwise until the background
noise
just
disappe
ar.
At this point the receiver will be quiet under
"no-signal"
conditions, however a reasonable strength incoming signal will overcome the
squelch action
and
be heard. As
the
cont
rol
is
advanced the squelch
action
is
progressively increased
and
stronger incoming signals are needed to overcome it.
To
receive weak signals
or
to
disable the squelch circuit turn the control fully counter
clockwise
EXTERNAL
SPEAKER
JACK
Recommended plug for the
EXT
SPEAKER
jack
is
a
"MINIPLUG"
subminia-
ture
phone
plug.
The
impedance
of
earphones
or
speakers connected should
be
8·16
ohms.
Insertion
of
a plug automatically silences the transceives internal
speaker.
SIGNAL
STRENGTH
LEVEL
METER
When receiving,
the
S/RF
POWER
LEVEL
METER
provides a relative indica-
tion
of
signal strength.
TRANSMITTING
To
transmit, depress the push-to-talk button
on
the microphone. The S/
TX
power
LEVEL
METER
indicates the relative transmit power level. Use
the
microphone
like a telephone speaking several inches from
the
face.
Do
not shout, use a
nor
-
mal speaking voice.
When
you
are transmitting, the receiver
is
silenced
and
reception
is
, therefore,
impossible. In the same way, your signal cannot be heard by another station when
he
is
transmitting-each must take turns.
To
receive aga
in
, simply release the micro-
phone
push·tO·talk
button.
S/TX
POWER
LEVEL
METER
In transmit position the S/
TXPOWER
LEVEL
METER
gives a relative indica-
tion
of
antenna
RF
power.
TX
MODE
LED
INDICATOR
This lamp light
on
TX
mode.
USE AS PUBLIC ADDRESS SYSTEM
Provision
ha
s been made for Public Address (PA)
op
eration utilizing the micro-
phone
and
audio stages
in
the
transceiver.
For
PA
operation, use an external high-
efficiency pu.blic addr
ess
hornt
ype speaker with
an
impedance range
of
8
to
16
ohms. Connect
to
the
PA
jack
on
the
rear panel
of
the transceiver. The required
plug is a subminiature
phone
plug.
For
Public Address (PA) operation, switch
CB
/
PA
SWITCH
to
PA
position
