Hardkey and Softkey Reference ESG Family Signal Generators
AM
4-8 User’s Guide
Dual-Sine
Reveals a menu of choices for setting the dual-sine amplitude
modulation parameters. In this menu you can set the AM rates for two
separate tones. In addition, you can set the AM depth for
AM Path 1 and
AM Path 2 and also set a ratio of the tone 2 AM depth to the tone 1 AM
depth.
Softkey Location:
AM > AM Waveform > Dual-Sine
Ext
Being one of the choices in the AM Sweep Trigger menu, choosing Ext
allows you to trigger swept-sine amplitude modulation using the signal
applied to the TRIGGER IN rear panel connector. Set the polarity of the
trigger signal using the
Trigger In Polarity Neg Pos softkey.
Softkey Location:
AM > AM Waveform > Swept-Sine > AM Sweep Trigger > Ext
Ext 1 AC-Coupled
Inputs an external, AC-coupled, amplitude modulation signal to the
EXT 1 INPUT connector. The modulation signal is tested for voltage
and a display annunciator will report a high or low condition if the
voltage is >
±
3% of 1 Vpk.
The external 1 input has multiple uses but can be used for only one
modulation at a time. If, for example, you were using the external 1
input in a frequency modulation configuration for
FM Path 1, and then
you configured
AM Path 2 to also use the external 1 input, the signal
generator would turn off
FM Path 1 and assign the external 1 input to
your
AM Path 2 configuration. (For the purpose of this discussion, the
external 1 AC-coupled input is the same as the external 1 DC-coupled
input.)
Softkey Location:
AM > AM Source > Ext 1 AC-Coupled
Ext 1 DC-Coupled
Inputs an external, DC-coupled, amplitude modulation signal to the
EXT 1 INPUT connector.
The external 1 input has multiple uses but can be used for only one
modulation at a time. If, for example, you were using the external 1
input in a frequency modulation configuration for
FM Path 1, and then
you configured
AM Path 2 to also use the external 1 input, the signal
generator would turn off
FM Path 1 and assign the external 1 input to
your
AM Path 2 configuration. (For the purpose of this discussion, the
external 1 AC-coupled input is the same as the external 1 DC-coupled
input.)
Softkey Location:
AM > AM Source > Ext 1 DC-Coupled
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