Agilent Technologies InfiniiVision 6000 Series Manual de Serviço Página 512

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512 Agilent InfiniiVision 6000 Series Oscilloscopes Programmer's Guide
5 Commands by Subsystem
:TRIGger[:EDGE]:COUPling
(see page 798)
Command Syntax
:TRIGger[:EDGE]:COUPling <coupling>
<coupling> ::= {AC | DC | LFReject}
The :TRIGger[:EDGE]:COUPling command sets the input coupling for the
selected trigger sources. The coupling can be set to AC, DC, or LFReject.
AC coupling places a high- pass filter (10 Hz for analog channels, and
3.5 Hz for all External trigger inputs) in the trigger path, removing dc
offset voltage from the trigger waveform. Use AC coupling to get a
stable edge trigger when your waveform has a large dc offset.
LFReject coupling places a 50 KHz high-pass filter in the trigger path.
DC coupling allows dc and ac signals into the trigger path.
Query Syntax
:TRIGger[:EDGE]:COUPling?
The :TRIGger[:EDGE]:COUPling? query returns the current coupling
selection.
Return Format
<coupling><NL>
<coupling> ::= {AC | DC | LFR}
See Also "Introduction to :TRIGger Commands" on page 479
":TRIGger:MODE" on page 485
":TRIGger[:EDGE]:REJect" on page 514
NOTE
The :TRIGger[:EDGE]:COUPling and the :TRIGger[:EDGE]:REJect selections are coupled.
Changing the setting of the :TRIGger[:EDGE]:REJect can change the COUPling setting.
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