
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 m enu 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 s elect 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 cu rren tly se lect ed.
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, th e
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 w ill 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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