Cubic SWAN SS-15 User Manual

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The
ALC
action
at
25?-
reflected
power
means
that
at
3:1
Sl^tR
the
maximum
net
power
to
the
antenna
wi1L
be'75%
6Tfrfrina1.
At
higher
SWRIs
even
less
net
power
can
be
develoPg{
"itttitt
the
control
l-imits
set
by
ALC'
This
type
of
ALC
controL
is
necessary
to
-protect
the,
arnplif ier
transistors
and should
not
be
alterei
in,
an
attempt
to
increase
output
power.
For
some
load
inpedances
presented
to
the
amplifier
it
rnay'-not
be
able
to
quite reach
,i
,
noininal':power
aira
hence
no
indication
will
be
seen
bn
the
neter.
This
can
be
accentu-
ated
by
low supply
voltage.
Fol'
example,
the
rnaiirnum
ouilut
capability
characteristic
of
this
type
amififier
drops
over
30%
from
13.5
vo1t3-
to
fi.
s volts
supply
voltage
'
should
the
neter
faiL
to
indicate
at
naximum
CW
drive
or
microphone
gain,
oP€ration
may
actually
be
norrnai
,
-
except
fpr
.reduced
-power
'
ftt"
laci<
of indicaiion
m?ry
be
due
to
either
SlrlR
or
low supply
voltage
of
both.
0p91ati9n
nay
be
quite
ilrattigll
in
these
case's
if
other
neans
to
checi<
the
RF
power outqut
and
quality
at"
employed.
In
the
absence
of
other
means
of
chelkiitg,
a
good rule
of
thumb
is
to
use
the
sane
seitings
of
the
CW
DRIVE
and
MIC
GAIN
controls
al
were
correct
for
nominal
supply
voltage
and
a
i-:L
SWR'
Drive
to
the
transnitter
during
cI^I operation
is
i"l
Uv
tte
CW
DRIVE
control.
Increase
this
con-
iiof-lfoCtwir"
to
the
point that
the
neter
shows
;-;ligfit
upward
moveneirt
during
CW
transmissions.
The
KEY
i
ack
provides
the
connection
for
tlte
F"y
"i-f."yi"'.
ftt[
transceiverrs
deiign
is
such
that
it is
not
necessary
to
unplug
the.key
or
close
the
key
circuit
during
SSB
operation'
This
switch
controls
the
internal
crystal
cali-
brator.
In
the
CAL
position,
the
9-Iysta1
catibrator
is
on
and-
providing
25
KHz
marker
signal-s
across
each
band.
CII
DRIVE
KET
OFF
-
CAL
-
13-

Cubic SWAN SS-15 Specifications

General

Brand	Cubic
Model	SWAN SS-15
Category	Transceiver
Language	English