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SPECIAL TUNING TECHNIQUES AND CONTROLS
BFO
PITCH
RF
GAIN
RF GAIN CONTROL
"-
LOCK
r
FM
,
MONO
STEREO
BFO
• •
• • • • • •
WIDE NARROW OUT
IN
OUT
IN
LAM..J
USING THE LOCK CONTROL
When you move the LOCK switch
to
the
IN
position, you disable the POWER
button and the tuning controls. If the
radio is
on
when you use the LOCK
switch, you cannot turn off the radio or
change the current frequency.
To
release the LOCK function, set
LOCK
switch
to
out position
Use this switch
to
prevent unauthorized
use of the radio or to ensure that any
station
you
might
be
monitoring remains
tuned in.
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While not a control, you might consider
using headphones to obtain the best
reception. Many stations broadcast
marginal signals. Only headphones can
capture the subtle difference between
the signal from such stations and the
surrounding noise often encountered
at
night.
Be
sure that the headphones
terminate
in
a 1/8 inch plug, Insert the
plug into the PHONES jack
on
the side
of the radio. When you plug the head-
phones in, you silence the speaker.
USING HEADPHONES
rFMi
MONO
STEREO
BFO
LOCK
ciIiII:I.m
.. .. ..
WIDE
NARROW OUT
IN
OUT
IN
LAM--.J
Because the radio can receive stereo
FM, when you listen to
FM
stereo
broadcasts, be sure your headphones
are designed for stereo operation
so
that you can obtain the full benefit of
this feature.
o
AM NARROW!WIDE
SELECTIVITY SWITCH
r
FM
,
MONO
STEREO
BFO
LOCK
ciIiII:I.m
.. .. ..
WIDE NARROW OUT IN OUT
IN
.,.
LAM-J
r-
FM
-,
MONO STEREO
BFO
LOCK
~
.. .. . .
WIDE NARROW OUT
IN
OUT IN
LAM-.J
,FM-,
MONO
STEREO
BFO
LOCK
ciIiII:I.m
.. .. ..
WIDE
NARROW OUT
IN
OUT
IN
LAM~
'"
For full reception, leave the switch
in
the WIDE position.
Some stations transmit their signal
so
that very little space exists between
their airspace and the station next to
them
on
the band.
If,
while tuning, you
encounter interference, caused by the
signal from
an
adjacent station, press
the button for the band you
are
listening
to and select the NARROW position.
The interference
is
reduced or muted.
If you plan to listen to Morse code,refer-
red
to
as
CW (continuous
wave),
set the
BFO switch to
IN
position. If you en-
counter too much noise
as
you tune,
set the
AM
NARROW/WIDE switch to
NARROW position.
RF
GAIN
BFO PITCH
001
~SB
USB MIN MAX
This control adjusts the receiver's sen-
sitivity. For shortwave reception, rotate
the control to the MAX position. This
provides the maximum sensitivity.
When
you listen to the MW, standard
AM
band, or LW band, rotate the control
only
as
far
as
needed to obtain a good
signal. If you turn the knob further you
might hear a distorted signal. For weak
stations, rotate the control to the MAX
position.
In
addition
to
the standard tuning oper-
ations described previously, use the
following controls
for
special operations.
If you encounter interference, adjust
the control
in
both directions until you
obtain the best compromise between
your station and the interference.
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