User Manual

Command Descriptions
Arguments
CH<x> specifies
one of the allowable input channels. The value of <x> can
vary from 1 through 4 for 4-channel instruments or 1 through 2 for 2-channel
instruments.
EXT specifies the external input (not available with TDS224 oscilloscopes).
EXT5 specifi
es that the external input is attenuated by a factor of 5 (not available
with TDS224 oscilloscopes).
EXT10 speci
fies that the external input is attenuated by a factor of 10
(TPS2000 Series only).
AC LINE spe
cifies the power line signal as a trigger s ource (not available with
TPS2000 Series osc illoscopes).
Examples
TRIGGER:MAIN:EDGE:SOURCE CH1 specifies channel 1 as the edge trigger
source.
TRIGGER:MAIN:EDGE:SOURCE? might return CH2 for the edge trigger source.
TRIGger:MAIn:FREQuency? (Query Only)
Returns the edge or pulse width trigger frequency. This is the same as the readout
in the lower right corner of the screen.
If the trigger frequency is less than 1 0 Hz, the query returns 9.9e37 and generates
error 2207 (Measurement error, Measurement overflow).
If the trigger type is video, the query returns 9.9e37 and generates event 221
(Settings conflict).
Group
Trigger
Syntax
TRIGger:MAIn:FREQuency?
Returns
Edge or pulse width trigger frequency
Examples
TRIGGER:MAIN:FREQUENCY? might return TRIGGER:MAIN:FREQUENC Y
1.0E3
TRIGger:MAIn:HOLDOff? (Query Only)
Returns the trigger holdoff value.
TDS200, TDS1000/2000, TDS1000B/2000B, TDS2000C, TPS2000 Programmer 2-169