Disable or enable AM. To avoid multiple waveform changes, you can enable
AM after you have set up the other modulation parameters. The default is
OFF. The AM[1|2]:STAT? query returns “0” (OFF) or “1” (ON). The
instrument will allow only one modulation mode to be enabled at a time. For
example, you cannot enable AM and FM at the same time. When you enable
AM, the previous modulation mode is turned off. The instrument will not
allow AM to be enabled at the same time that sweep or burst is enabled.
When you enable AM, the sweep or burst mode is turned off.