[SOURce:]SWEep
[SOURce:]SWEep:COUNt
<numeric_value>
(1)
Sending this program message determines the number
of
sweeps which are
enabled by a single trigger event. The SWEep MODE must
be
non-continuous.
'MINimum' and 'DEFault' values are
1,
'MAXimum' value is 1,000,000.
[SOURce:]SWEep:DIRection
<UP 1
DOWN>
Sending this program message controls the sweep direction.
If
UP is
selected the sweep is performed
in
ascending order from
ST
ARt to
STOP.
If
DaWN
is selected the
output
frequency is swept from STOP to
STARt.
[SOURce:]SWEep:MODE
<CRESet
l,
TRESet
1
HRESet
1
CREVerse
1
TREVerse
1
HREVerse
1 MANual>
Sending
fuis
program message sets the mode
of
the sweep. The sweep modes have
thc following charactcristics:
•
CRESet
Sweeps from the start frequency to the stop frequency and
then returns to the start frequency in a continuous loop.
• TRESet
• HRESet
·CREVerse
·TREVerse
·HREVerse
·MANual
Waits for a trigger and then sweeps from the start frequency
to the stop frequency and then resets to the start frequency.
Waits for a trigger and then sweeps from the start frequency
to the stop frequency and then waits for another trigger
before returning to the start frequency.
Sweeps from the start frequency to the stop frequency and
then sweeps back to the start frequency in a continuous loop.
Waits for a trigger and then sweeps from the start frequency
to the stop frequency and then sweeps back to the start
frequency.
Waits for a trigger and then sweeps from the start frequency
to the stop frequency and then waits for another trigger
before sweeping back to the start frequency.
Uses the frequency set by the
[SOURce:]FREQuency:MANual program message
if
itis
within the range
of
frequencies set by the
[SOURce:]FREQuency:STARt and
[SOURce:]FREQuency:STOP program messages.
[SOURce:]SWEep:TIME
<numeric_value>
(1.0)
Sending this program message sets the duration
of
the sweep
in
seconds. The
sweep time may range from
30
ms to 1000 sec.
[SOURce:]SWEep:SPACing
<LINear
1
LOGarithmic>
Sending this program message determines the frequency verses time characteris-
tics
of
the sweep.
LlNear
Output frequency is swept linearly between the STARt and
STOP frequencies.
5-42 Remote Operation
LOGarithmic
Output frequency is swept on a logarithmic curve fitted
between the
ST
ARt and STOP frequencies. The objective
of
the logarithmic sweep is to spend equal amounts
of
time
within eachdecade
of
frequency.
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