Tektronix FCA3000 Programmer's Manual page 90

Command Descriptions
Group
Syntax
Arguments
MEASure:ARRay:STSTamp? (Query Only)
Group
Syntax
Arguments
2-74
The main purpose of this function is to make continuous measurements of
relatively long period times without losing single periods due to result processing.
A typical example is the 1-pps timebase output from GPS receivers.
Measurement
MEASure:ARRay:PERiod:BTBack?
sets the number of samples.
<ARRAY SIZE>
channel: means input A
(@1)
means input B
(@2)
A time stamp (TS) is taken of the trigger level crossing on the selected
input channel. The commands
and CONFigure:ARRay:<MeasuringFunction>
FORMat:TINFormation
instead, you should normally let it be preceded by the
command explicitly. Otherwise the TS
ON
format below.
The deadtime to the next TS is due to pacing and interpolator calibration and
can go down to 4 μs. The X register/counter records the number of trigger level
crossings.
Depending on the state of the command FORMat:TINFormation, one or two
values are output for each TS. If
the timestamp is output. If
read and output as two values, separated by a comma in ASCII and REAL mode.
1 TS is the time stamp value in seconds since a certain start event that is not available for external control.
Therefore the TS values can only be used for relative time measurements.
Measurement
MEASure:ARRay:STSTamp?
Array size is the number of TS. One TS can contain 1 or 2 numeric values
depending on the state of the
FCA3000, FCA3100, MCA3000 Series Programmer Manual
(<array size>)[,(@1)|(@2)]
(@1)|(@2)
MEASure:ARRay:<MeasuringFunction>?
automatically invoke
to get the time stamp data, but when
ON
1 values are omitted. See Returned
, only the content of the X register/counter at
OFF
, both the X register/counter and the TS value are
ON
(<array size>)[,(@1)|(@2)]
FORMat:TINFormation
is the measurement
FUNCtion is used
FORMat:TINFormation
command.