Keysight Technologies InfiniiVision MSO-X 4154A

406 Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide
18 :FUNCtion<m> Commands
:FUNCtion<m>[:FFT]:PHASe:REFerence
(see page 1428)
Command Syntax
:FUNCtion<m>[:FFT]:PHASe:REFerence <ref_point>
<ref_point> ::= {TRIGger | DISPlay}
<m> ::= 1-4 in NR1 format
The :FUNCtion<m>[:FFT]:PHASe:REFerence command sets the reference point for
calculating the FFT Phase function to either the trigger point or beginning of the
displayed waveform.
Query Syntax
:FUNCtion<m>[:FFT]:PHASe:REFerence?
The :FUNCtion<m>[:FFT]:PHASe:REFerence? query returns the selected reference
point.
Return Format
<ref_point><NL>
<ref_point> ::= {TRIGger | DISPlay}
See Also • ":FUNCtion<m>:OPERation" on page 416
• "Introduction to :FUNCtion<m> Commands" on page 393