Tektronix AFG2021 Programmer's Manual page 78

Command Descriptions
Group
Syntax
Arguments
Returns
Examples
[SOURce[1]]:PM:STATe
Group
Syntax
Arguments
Returns
Examples
SOURce<3>:POWer[:LEVel][:IMMediate][:AMPLitude]
2-60
Source
[SOURce[1]]:PM:SOURce
[SOURce[1]]:PM:SOURce?
INTernal means that the carrier waveform is modulated with an internal source.
EXTernal means that the carrier waveform is modulated with an external source.
INT|EXT
SOURce1:PM:SOURce INTernal
sets the CH 1 source of modulating signal to internal.
This command enables or disables PM modulation. The query command returns
the state of PM modulation. You can select a sine, square, ramp, or arbitrary
waveform for the carrier waveform.
Source
[SOURce[1]]:PM:STATe
[SOURce[1]]:PM:STATe?
ON or <NR1>≠0 enables PM modulation.
OFF or <NR1>=0 disables PM modulation.
<NR1>
SOURce1:PM:STATe ON
enables the CH 1 PM modulation.
This command sets or queries the internal noise level which applies to the output
signal for the specified channel. The noise level represents the percent against
current amplitude level. The setting range is 0 to 50%.
AFG2021 Arbitrary Function Generator Programmer Manual
[INTernal|EXTernal]
{ON|OFF|<NR1>}