Specifications

Programming Guide 2-9
ESG Family Signal Generators Programming Commands and Examples
:AM Subsystem
source, the signal generator would turn off FM Path 1 and assign the external 1 source to
your
AM Path 2 configuration.
*RST Value: DC
Internal Amplitude Modulation Alternate Frequency
:AM[1]|2:INTernal[1]:FREQuency:ALTernate <val><unit>
:AM[1]|2:INTernal:FREQuency:ALTernate?
This command sets the frequency for the alternate signal. The alternate frequency is the
second frequency of a dual-sine or the stop frequency of a swept-sine. The choices for the
variables <val> and <unit> range from 0.1 kHz (minimum) to 50.0 kHz (maximum).
*RST Value: 400.00 Hz
Internal Amplitude Modulation Alternate Frequency Amplitude
:AM[1]|2:INTernal[1]:FREQuency:ALTernate:AMPLitude:PERCent <val><unit>
:AM[1]|2:INTernal:FREQuency:ALTernate:AMPLitude:PERCent?
This command sets the amplitude of the alternate frequency as a percentage of the total
amplitude. Therefore, if the alternate frequency makes up 30% of the total amplitude, then
the primary frequency is 70% of the total amplitude (for dual-sine only). The choices for the
variables <val> and <unit> range from 0.1% (minimum) to 99.9% (maximum).
*RST Value: 50%
Internal Amplitude Modulation Source Rate
:AM[1]|2:INTernal[1]:FREQuency <val><unit>
:AM[1]|2:INTernal:FREQuency?
This command sets the rate of the internally-generated modulation source. The choices for
the variables <val> and <unit> range from 0.1 Hz (minimum) to 50 kHz (maximum) if the
internal waveform is Sine wave. For all other waveforms, the maximum internal amplitude
modulation rate is 10 kHz.
Use this command to change the internal modulation frequency for the
AM Path 1 and
AM Path 2 configurations. The minimum increment allowed is 0.1 Hz. Notice that the new
value of AM rate applies only to whichever AM configuration (
AM Path 1 or AM Path 2) you
have currently selected.
*RST Value: 400.0 Hz
Internal Amplitude Modulation Sweep Time
:AM[1]|2:INTernal[1]:SWEep:TIME <val><unit>
:AM[1]|2:INTernal:SWEep:TIME?
This command selects the sweep time for a swept-sine, internally-generated signal.
*RST Value: 100 msec