ESG Family Signal Generators Hardkey and Softkey Reference
LF Out
User’s Guide 4-61
Swept-Sine
Pressing this softkey reveals a menu of choices for setting the
swept-sine low frequency output. In this menu you can set the LF start
and stop frequency and the sweep time. You can also set the trigger for
the swept-sine output, and the polarity of the TRIGGER IN and
TRIGGER OUT signals.
Softkey Location:
LF Out > LF Out Source > Function Generator >
LF Out Waveform > Swept-Sine
Triangle
This softkey lets you specify triangle as the waveform for the LF output
signal.
This softkey is only active when you have selected the internal source to
operate as a function generator.
Softkey Location:
LF Out > LF Out Source > Function Generator >
LF Out 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 low frequency output.
This softkey is coupled to the
Trigger In Polarity Neg Pos softkey for
swept-sine AM, FM, and
Φ
M, 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 LF Out Swept-Sine Menu to Neg,
the
Trigger In Polarity Neg Pos softkey is also set to Neg for swept-sine AM,
FM, and
Φ
M. 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
LF Out Menu.
Conversely, if the
Trigger In Slope Neg Pos softkey is toggled in the
swept-sine AM, FM, or ΦM menus, it will cause the swept-sine LF Out
softkey to toggle also. This is also true for the
Ext Neg and Ext Pos step or
list sweep trigger selections.
This softkey is only active when you have selected the internal source to
operate as a function generator.
Default Value: Pos
Softkey Location:
LF Out > LF Out Source > Function Generator >
LF Out Waveform > Swept-Sine > LF Out Sweep Trigger > Ext >
Trigger In Polarity Neg Pos
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