AM Commands
Use the APPLy command or the equivalent FUNC:SHAP, FREQ, VOLT,
and VOLT:OFFS commands to configure the carrier waveform. Set the
carrier frequency between 100
mHz and 15 MHz (100 kHz for triangle
and ramp). The default is 1 kHz.
AM:DEPTh {<
depth in percent>|MINimum|MAXimum}
Set the internal modulation depth in percent. Select from 0% to 120%.
The default is 100%.
MIN = 0%. MAX = 120%. [ Stored in volatile memory ]
If you select the external modulating source (AM:SOUR EXT), the
modulation depth is controlled by the signal level present on the
AM Modulation terminal (5 volts
peak corresponds to 100% modulation).
AM:DEPTh? [MINimum|MAXimum]
Query the modulation depth. Returns a value in percent.
AM:INTernal:FUNCtion {SINusoid|SQUare|TRIangle|RAMP|NOISe|USER}
Select the shape of the modulating waveform. Used only when the
internal modulation source is selected (AM:SOUR INT). You can use the
noise function as the modulating waveform. However, you cannot use
the noise function or dc volts as the carrier waveform. The default
is SIN. [ Stored in volatile memory ]
AM:INTernal:FUNCtion?
Query the shape of the internal modulating waveform. Returns “
SIN”,
“
SQU”, “TRI”, “RAMP”, “NOIS”, or “USER”.
AM:INTernal:FREQuency {<
frequency>|MINimum|MAXimum}
Set the frequency of the modulating waveform. Used only when the
internal modulation source is selected (AM:SOUR INT). Select from
10 mHz to 20 kHz. The default is 100 Hz.
MIN = 10 mHz.
MAX = 20 kHz. [ Stored in volatile memory ]
AM:INTernal:FREQuency? [MINimum|MAXimum]
Query the internal modulating frequency. Returns a value in hertz.
4
Chapter 4 Remote Interface Reference
AM Modulation Commands
155
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