Giga-tronics 2508A - Source Subsystem- Modulation

2500A Chapter 3: Remote Operation
78 2500A Series Operation Manual, 34172 Revision C, March 2008
3.2.2.9 Source Subsystem- Modulation
All commands in the Source subsystem begin with [SOURce], however, [SOURce] is the default com-
mand, therefore it is optional.
Table 3-12: Source Subsystem - Modulation SCPI Commands
Command Syntax Description
[SOURce]:AM:DEPTh <am_depth> Sets the internal amplitude modulation depth to a percentage value
as specified by <am_depth>.
[SOURce]:AM:DEPTh? Queries the internal amplitude modulation depth. The return value
is in percent.
[SOURce]:AM:INTernal:FREQuency
<am_freq> [HZ | KHZ | MHZ | GHZ]
Sets the rate of the internal amplitude modulation generator to the
value specified by <am_feq> (Not available with Option 17A or
17B). Hertz is assumed if no units is specified.
[SOURce]:AM:INTernal:FREQuency? Queries the rate of the internal amplitude modulation generator.
The return value is in Hertz (Not available with Option 17A or
17B).
[SOURce]:AM:INTernal:FUNCtion:SHAP
e
OFF|SINE|SQUare|TRIangle|PRaMP|NOI
Se
Sets the shape of the internal amplitude modulation generator
waveform (Not available with Option 1A7 or 17B). The choices are
as follows:
OFF Turns the internal amplitude modulation generator off.
SINE Sets the internal amplitude modulation generator
waveform to sine wave.
SQUare Sets the internal amplitude modulation generator
waveform to square wave.
TRIangle Sets the internal amplitude modulation generator
waveform to triangle wave.
PRaMP Sets the internal amplitude modulation generator
waveform to a positive-going ramp.
NOIse Selects the internal noise generator as the amplitude
modulation generator.
[SOURce]:AM:INTernal:FUNCtion:SHAP
e?
Queries the shape of the internal amplitude modulation generator
waveform (Not available with Option 17A or 17B).
Returns: "Off", "Sine", "Square", "Triangle", "Pos Ramp", or
"Noise".
[SOURce]:AM:SCALing <am_scaling> Sets the external amplitude modulation scaling to a percentage per
volt value as specified by <am_scaling>.
[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 as follows:
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 value
is as follows:
1 AM mode is currently on.
0 AM mode is currently off.