Operation; Controls And Connections - Wavetek 188 Instruction Manual

SECTION
OPERATION
3.1
CONTROLS AND CONNECTIONS
The generator front
panel
controls
and connectors are
shown
in
figure 3-1
and keyed
to the following
descrip-
tions
1
Frequency
Dial
—
Settings
unde*
the
d«ai
index
mark
summed
with
21
and
multiplied
by 4
determine
the
output
signal
frequency
and the
sweep
start
frequency
w
sweep
mode
The
dial
Is
engraved
with
both linear
and
logarithms
scales
outer scale imear
and inner scale
logarithmic
2
POWER
Button
—
Tumsgonerator
ON andOFF
3
STOP Knob
—
Sets the
upper frequency
limit
when
CONT
5 Is
depressed
and SWP/STOP
6 it
extended
4
FREQUENCY
MULTIPLIERControls
-
Selects
one
of
seven frequency
multipliers for dial 1 set-
ting.
5
CONT
Button
—
Selects
swoop submode
to
mam
generator s continuous mode. Extended
is
continuous (nonsweep)
mode
while
depressed
is
swoop mode Sweep
is
from a low frequency
set
by
1
to
a high frequency
set
by
3
Mam
generator
mode
control
8
must be
in
continuous
mode
(ex-
tended)
6
SWP/STOP
Button
-
When
button
is
depress-
ed (and 5
depressed and
8 extended)
selects
repetitive
sweop
of
the
main
generator frequen-
cy
When
pulton
is
extended, the frequency
is
stopped
at
the
upper
sweep
limit with
uppor
fro-
Quoncy being
set
by
STOP
control 3
7
LIN/LOG
Button
—
Selects
linear
or
logarithmic
frequency
distribution
of
sweep.
Figure
3-1.
Controls
and Connectors
3-1