Hardkey and Softkey Reference ESG Family Signal Generators
FM
4-32 User’s Guide
Triangle
This softkey lets you specify triangle as the frequency modulation
waveform for the
FM Path 1 and FM Path 2 configurations. Notice that the
selected waveform applies only to whichever FM path configuration you
have currently selected.
Softkey Location:
FM/ΦM > FM 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 frequency modulation.
This softkey is coupled to the
Trigger In Polarity Neg Pos softkey for
swept-sine AM,
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 FM Swept-Sine Menu to Neg, the
Trigger In Polarity Neg Pos softkey is also set to Neg for swept-sine AM,
Φ
M,
and LF Out. And, in addition, if the step or list sweep trigger is set to
Ext Pos, the trigger selection will automatically be changed to Ext Pos.
The same softkeys will toggle to
Pos or to Ext Pos if you select Pos in the
Swept-Sine FM Menu.
Conversely, if the
Trigger In Slope Neg Pos softkey is toggled in the
swept-sine AM,
Φ
M, or LF Out menus, it will cause the swept-sine FM
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:
FM/ΦM > FM Waveform > Swept-Sine >
Trigger In Polarity Neg Pos
Trigger Key
This softkey is one of the choices in the FM Sweep Trigger menu. With
Trigger Key selected, when you press the Trigger front panel key you
immediately trigger a single sweep of swept-sine frequency modulation.
The
Trigger key has autorepeat capability. Hold it down and you will
repeatedly trigger sweeps until you release the key.
Softkey Location:
FM/ΦM > FM Waveform > Swept-Sine > FM Sweep Trigger >
Trigger Key
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