Key Reference
E
Chapter 5 139
Ext
Supported All
This softkey is one of the choices in the Sweep Trigger, Point Trigger, and AM, FM and
Φ
M Sweep Trigger menus. Your available settings depend on which trigger menu you
have selected.
• In the Sweep Trigger menu, choosing
Ext enables you to trigger a full sweep on either
the negative or positive edge of a signal applied to the TRIGGER IN rear panel
connector.
• In the Point Trigger menu, choosing
Ext enables you to trigger a point-by-point sweep
on either the negative or positive edge of a signal applied to the TRIGGER IN rear
panel connector.
• In the AM, FM, and
Φ
M sweep trigger menus, choosing
Ext enables you to trigger a
swept-sine amplitude, frequency, or phase modulation on either the negative or
positive edge of a signal applied to the TRIGGER IN rear panel connector.
Preset N/A
Range N/A
Location Page 231, Page 236, Page 238, Page 241, Page 245
Remarks Set the polarity of the trigger signal using the
Trigger In Polarity Neg Pos softkey.
Ext Coupling DC AC
Supported All
Use this key to toggle the coupling for the externally applied modulation input signal
between dc and ac.
Preset DC
Choices DC or AC
Location Page 230, Page 235, Page 237
Remarks The command does not change the currently active source or switch
the current modulation on or off. The modulating signal may be the
sum of several signals, either internal or external sources.
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