Cubic SWAN SS-15 User Manual

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PRESELECTOR
MODE
VFO SELECTOR
BLANKER
The
PRESELECTOR
peaks
the
RF
tuned
circuits
in
the
receiver.
It should
be set
approximately
to
the
rnarkings corresponding
to the
selected
band
and then
peaked for
maximum signal.
It
should
be noted that
other
settings
could
result
in
,other
responses.
Suggestions
are of
fered
later
in this
section
to
show how these
can
be
used to
the
operatorrs
advantage.
NOTE
0n 5.5 MHz
and 7.0
MHz it
is
,possible
to
tune
the
PRESELECTOR to
the
transceiverrs
IF fre-
quency
(5.5
MHz) .
The
receiver
would in effect
6e
receiving its
own
local
qscillator.
This
can be
detected by
a
"hollow"
sound
to the
speaker
and
some
"S"
meter indication.
The
MODE
switch
selects
the
CW or
SSB
modes
of
operation.
The NORM
position selqcts
the
lower
sideband
for 80
and
40
meters,
and' the
upperside-
band
for,20,
15
and
10
meters.
The
OPP
position
selects
the
opposite
sideband
frorn that
ng,ted
above.
CW
selects
the
CW
rnode of
operation.
The VFO
SELECTOR
switch
is used
in conjunction
with
the
Swan
Model
SS-208
External
VFO.
The
"Att
position selects
transceive
operation
of
the internal
VFO.
The
rrBrt
position
selects
transceive
operation
on the
external
VFO,
a+d
SPLIT
positibn selects
the
internal
VFO
during
receive
and
the external
VFO
for transmit.
NOTE
If no external
VFO
is
used
or
connected,
the
VFO SELECTOR
switch
must
remain
in
position
A.
If
the
switch
is
positioned
to
either
SPLIT
or
B
either
the tranirnitter
or
receiver
will
not
function.
The
BLANKER
control
establishes
the
threshold
level
for
pulse
type
noise
blanking-.
The
switch
in
ful1 counterctockwise
disables
the
hoise
blanker
circuit.
The
control
is
advanced
clock-
wise
just
to the
point
to
suppress,unwanted
noise'
Advancing
the
control
too
far
clockwise
may
cause
cross
modulation
by
other
strong
signals
on the
band.
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11-

Cubic SWAN SS-15 Specifications

General

Brand	Cubic
Model	SWAN SS-15
Category	Transceiver
Language	English