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®
3
-
6
3
.4
.6
OPERATING INSTRUCTIONS
PM 5135
Modulation
Mode
SWEEP
The
maximum
sweep range
is
3V2 decades and so covers
th
e complete
subrange selected.
The
sweep characteristic is logarithmic.
Start. stop frequency and sweep time are
set
independent of
each
other.
The sweep
is
controlled
via
the keyboard with the SWEEP switches
ON,
CONT
,
TRIG. The
sweep
can
also
be
triggered
by an external signal fed
to
the socket TRIGGER at
the
rear
panel.
Single sweep
Continuous sweep
fSTOP
fSTOP
f START
fSTART
sweep time
sweep time sweep
time
Overmore
the frequency can be
controlled
by an
external
voltage
at the socket SWEEP
(rear
panel)
in
dependent of the set sweep parameters.
3.4.6.
1
Internal Sweep
Set start frequency as described in
chapter
3 .4
.
3.
The
selected
frequency
range
ist also
valid
for the
stop
frequency.
Stop
frequency setting:
SWEEP
CJ
ON CONT
TRIG
-
the stop frequency is now
at the
signal output
SWEEP STOP
set to the required value
(0
.
1 to
200
times of the selected
frequency
range)
0.1
200
The
control
FREQUENCY
OFFSET
alters
start and stop
frequency
at
the
same
t ime.
Sweep time
setting
:
SWEEP TIME
setting range
1
s
.
.
.
150 s
l
s
150s
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