ESG Family Signal Generators Hardkey and Softkey Reference
AM
User’s Guide 4-11
Swept-Sine
Pressing this softkey reveals a menu of choices for setting the
swept-sine amplitude modulation parameters. In this menu you can set
the start and stop AM rate and the sweep time. You can set the signal
generator to a single, externally-triggered sweep on either a negative or
positive TTL level or you can choose continuous sweep, triggered
immediately. In this menu you can also select either a positive or
negative polarity for the TRIGGER OUT signal.
Softkey Location:
AM > AM Waveform > Swept-Sine
Triangle
This softkey lets you specify triangle as the amplitude modulation
waveform for the
AM Path 1 and AM Path 2 configurations. Notice that the
selected waveform applies only to whichever AM path configuration you
have currently selected.
Softkey Location:
AM > AM Waveform > Triangle
Trigger In Polarity Neg Pos
Press this softkey to toggle between a negative TTL level trigger (0 V)
and a positive TTL level trigger (+5 V) for externally triggering
swept-sine amplitude modulation.
This softkey is coupled to the
Trigger In Polarity Neg Pos softkey for
swept-sine FM,
Φ
M, and LF Out, and to the
Ext Neg and Ext Pos sweep
trigger selections in the Sweep/List Menu. If you set the
Trigger In Polarity Neg Pos softkey in the AM Swept-Sine Menu to Neg, the
Trigger In Polarity Neg Pos softkey is also set to Neg for swept-sine FM,
Φ
M,
and LF Out. In addition, if the step or list sweep is set to externally
trigger, the selection will automatically be set to
Ext Neg. The same
softkeys will toggle to
Pos or to Ext Pos if you select Pos in the Swept-Sine
AM Menu.
Conversely, if the
Trigger In Slope Neg Pos softkey is toggled in the
swept-sine FM, ΦM, or LF Out menus, it will cause the swept-sine AM
softkey to toggle also. This is also true for the
Ext Neg and Ext Pos step or
list sweep trigger selections.
Default Value: Pos
Softkey Location:
AM > AM Waveform > Swept-Sine >
Trigger In Polarity Neg Pos
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