2-6 Analog and Step Sweep Commands
Programming with GPIB Commands
2-14
PN: 10370-10374 Rev. F
MG369xC GPIB PM
2-6
Analog and Step Sweep Commands
lists the analog and step sweep command mnemonic codes. These commands are
divided into five subclasses and are described in the following paragraphs.
Sweep Range
Seven sweep ranges are available. The
SF1
and
SF3
commands select the sweep ranges of F1-F2 and F3-F4,
respectively; the
FUL
command selects a full band sweep from the signal generator's low frequency limit to its
high frequency limit.
The
DF0
,
DF1
,
DF5
, and
DF6
commands each select a symmetrical frequency sweep around F0, F1, F5, and F6
respectively. The width of the sweep is determined by the
F frequency parameter.
Programming Examples:
Programming “
F1 2 GH F2 8 GH SF1
” sets F1 to 2 GHz, F2 to 8 GHz, and implements a F1-F2 frequency
sweep.
Programming “
DLF 6 GH F5 7 GH DF5
” sets DF to 6 GHz, F5 to 7 GHz, and implements a F5-
F frequency
sweep.
Programming Note:
If the commanded step sweep range is invalid, a parameter error (
) will be generated and the
output of the signal generator will not be altered.
Alternate Sweep
Six alternate step sweep commands are available. If the MG369xC is sweeping when the alternate sweep
command is received, the signal generator's output will alternate between the commanded sweep and the
sweep then being executed.
Programming Example:
Assume that the MG369xC had been previously programmed and was then executing an F1-F2 sweep.
Programming “
AF3
” would then activate the F3-F4 sweep and cause it to alternate with the F1-F2 sweep.
Programming Note:
An alternate step sweep command will only be recognized when the MG369xC has been programmed to sweep.
It will be ignored at all other times.
Sweep Triggering
Three modes of sweep triggering are available over the bus—Automatic, External, and Single. The
AUT
command selects automatic sweep triggering; the
HWT
command selects external triggering; and the
EXT
command selects single sweep triggering.
When automatic sweep triggering is selected, the sweep continually sweeps from its start frequency
(or power level) to its stop frequency (or power level) with optimal retrace time.
When external sweep triggering is selected, a single sweep occurs when triggered by an external
TTL-compatible clock pulse to the rear panel
AUX I/O
connector.
When single sweep triggering is selected, a single sweep starts when the
TRG
or
TRS
command is received.
The
RSS
command resets the sweep to its start frequency (or power level), whenever the command is received
while a single sweep is in progress.
Summary of Contents for MG369 C Series
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