8.
CHANNEL
SELECTOR.
This
switch selects any one of
the
forty
Citizens
Band
channels desired. The selected channel appears
on
the
LED
readout directly above the Channel Selector knob. Channel 9
has
been reserved by the
FCC
for
emergency communications involving the
immediate safety of
life
of individuals
or
immediate protection of
property. Channel 9
may
also
be used to render assistance to a
motorist.
9. OFF/ANL
SWITCH.
In
the
ANL
position, the noise reduction circuits
of the Automatic
Noise
Limiter
are
activated.
IO.
PA/CB
SWITCH
. Selects the mode
of
operation.
Jn
the
CB
position. the
PA
function
is
disabled and the unit
will
transmit
and
r
eceive
on
the
selected frequency.
The
PA
function should not
be
used
unless
a
PA
speaker
is
connected.
To
use
this
PA
feature. a speaker
having
a
voice
coil
impedance of
8 ohms and a po
wer
handling capability of at least four watts should
be
used.
This
speaker must
be
plugged
into the
PA
SPKR
jack
at
the
rear
of the transceiver.
With
the
PA
speaker connected
as
outlined
previously,
be
sure that there
is
physical separation between the
microphone and the speaker itself. If the speaker
is
located
close
to the
microphone, acoustic feedback
will
result when the public address
system
is
operated at
high
volume.
Some
experimentation
will
determine the minimum amount
of
isolation required
for
a
given
sound
level
from the public address system.
NOTE
PA
volume
is
controlled by adjusting the
DYNAMIKE
KNOB
to
the
desired volume.
11.
SWR/SWR
CAL/RF-MOD
SWITCH.
In
the
RF-MOD
position, the S-RF
and
MOD
meters
are
activated.
When
in
the
SWR
or
SWR
CAL
positions the
SWR
meter
is
activated.
In
the latter two
cases,
the
operation
is
described
in
the above
SWR
CAL
CONTROL description.
12.
PRESS-TO
-TALK
MICROPHONE.
The receiver
and
transmitter
are
controlled
by
the press-to-talk switch
on
the microphone.
Press
the
switch and the transmitter
is
activated; release switch to
receive.
When
transmitting, hold the microphone two inches
from
the mouth and
16
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