User Manual

:MTESt Commands 21
Keysight InfiniiVision 1000 X-Series Oscilloscopes Programmer's Guide 417
:MTESt:SCALe:X1
(see page 782)
Command Syntax
:MTESt:SCALe:X1 <x1_value>
<x1_value> ::= X1 value in NR3 format
The :MTESt:SCALe:X1 command defines where X=0 in the base coordinate system
used for mask testing. The other X-coordinate is defined by the
:MTESt:SCALe:XDELta command. Once the X1 and XDELta coordinates are set, all
X values of vertices in the mask regions are defined with respect to this value,
according to the equation:
X = (X * ΔX) + X1
Thus, if you set X1 to 100 ms, and XDELta to 100 ms, an X value of 0.100 is a
vertex at 110 ms.
The oscilloscope uses this equation to normalize vertices. This simplifies
reprogramming to handle different data rates. For example, if you halve the period
of the waveform of interest, you need only to adjust the XDELta value to set up the
mask for the new waveform.
The X1 value is a time value specifying the location of the X1 coordinate, which will
then be treated as X=0 for mask regions coordinates.
Query Syntax
:MTESt:SCALe:X1?
The :MTESt:SCALe:X1? query returns the current X1 coordinate setting.
Return Format
<x1_value><NL>
<x1_value> ::= X1 value in NR3 format
See Also • "Introduction to :MTESt Commands" on page 391
• ":MTESt:SCALe:BIND" on page 416
• ":MTESt:SCALe:XDELta" on page 418
• ":MTESt:SCALe:Y1" on page 419
• ":MTESt:SCALe:Y2" on page 420