Technical data

14 TRIGger Subsystem
684 N1911A/1912A P-Series Power Meters Programming Guide
Parameters
Example
Item Description/Default Range of Values
source Available trigger sources:
• BUS: the trigger source is the group execute trigger
<GET> bus command, a *TRG common command or
the TRIGGER:IMMediate SCPI command.
• EXTernal: the trigger source is the trigger input in the
back panel.
• HOLD: triggering is suspended. The only way to trigger
the power meter is to use TRIGger:IMMediate.
• IMMediate: the trigger system is always true. If
INITiate:CONTinuous is ON the power meter is
continually triggering free (free run mode). If an
INITiate:IMMediate command is sent a
measurement is triggered then the power meter
returns to the idle state.
• INTernal: either INT1 (Channel A) or INT2
(Channel B).
BUS
EXTernal
HOLD
IMMediate
INTernal[[1]|2]
NOTE
The trigger source is set to IMMediate on instrument power-up and when entering local
mode.
The MEASure and CONFigure commands automatically set the trigger source to
IMMediate.
The READ? or MEASure commands should not be used if the trigger source is set to BUS
or HOLD.
TRIG:SOUR IMM This command configures Channel A for
immediate triggering.