Giga-tronics 2400/2500 Microwave Synthesizer Series
4. Programming Interfaces
Programming Manual, Part Number 34783, Rev A, July 2009
111
Table 17 Source Subsystem – Modulation SCPI Commands
Command Syntax
Description
[SOURce]:AM:SCALing?
Queries the external amplitude modulation
scaling. Return value is a percentage per volt.
[SOURce]:AM:SOURce INTernal|EXTernal
Sets the amplitude modulation source. The choices
are:
•
INTernal Sets the internal AM generator as the
AM source.
•
EXTernal Selects external AM. The modulation
source in this case is the signal applied at the
rear-panel AM IN connector.
[SOURce]:AM:SOURce?
Queries the amplitude modulation source. Returns
"INTernal" or "EXTernal"
[SOURce]:AM:STATe ON|OFF|1|0
Sets amplitude modulation mode on or off. The
choices are as follows:
•
1|ON Sets AM mode to on.
•
0|OFF Sets AM mode to off.
[SOURce]:AM:STATe?
Queries the state of amplitude modulation mode.
The return values is are follows:
•
1 AM mode is currently on.
•
0 AM mode is currently off.
[SOURce]:AM:SENSitivity d
Sets the modulation depth of an AM signal.
[SOURce]:AM:SENSitivity?
Queries the modulation depth of an AM signal.
[SOURce]:FM:BANDwidth NARRow|WIDE
Sets the Frequency Modulation bandwidth to
Narrow or Wide.
[SOURce]:FM:BANDwidth?
Queries the Frequency Modulation bandwidth.
Return “Narrow” or “Wide”.
[SOURce]:FM[:DEViation] <fm_dev> [HZ | KHZ |
MHZ | GHZ]
Sets the internal frequency modulation deviation
to the value specified by <fm_dev>. Hertz is
assumed for the units if no units is specified.
[SOURce]:FM[:DEViation]?
Queries the internal frequency modulation
deviation that is currently set. The return value is
in Hertz.
[SOURce]:FM:INTernal:FREQuency <fm_freq> [HZ
| KHZ | MHZ | GHZ]
Sets the rate of the internal frequency modulation
generator to the value specified by <fm_freq>.
Hertz is assumed for the units if units are not
specified.
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