Rigol DS1000Z Series Programming Guide

RIGOL Chapter 2 Command System
2-42 DS1000Z Programming Guide
:MATH:FFT:HCENter
Syntax :MATH:FFT:HCENter <cent>
:MATH:FFT:HCENter?
Description Set or query the center frequency of the FFT operation result, namely the frequency
relative to the horizontal center of the screen. The default unit is Hz.
Parameter
Name
Type
Range
Default
<cent>
Real
0 to (current screen sample rate×2/5)
5MHz
Explanation  Current screen sample rate = 100/current horizontal timebase.
 Step = horizontal scale of the FFT operation result/50.
Return
Format
The query returns the current center frequency in scientific notation.
Example
:MATH:FFT:HCENter 10000000 /*Set the center frequency to 10MHz*/
:MATH:FFT:HCENter? /*The query returns 1.000000e+07*/
Related
Commands
:MATH:OPERator
:MATH:FFT:HSCale
:TIMebase[:MAIN]:SCALe
:MATH:OPTion:STARt
Syntax :MATH:OPTion:STARt <sta>
:MATH:OPTion:STARt?
Description
Set or query the start point of the waveform math operation.
Parameter
Name
Type
Range
Default
<sta>
Integer
0 to (End point currently set-1)
0
Explanation  This command is invalid for the FFT operation. Sending this command will modify the
start points of all the operations (except FFT).
 The horizontal axis of the source selected is equally divided into 1200 parts, in which
the leftmost is 0 and the rightmost is 1199.
Return
Format
The query returns an integer.
Example
:MATH:OPTion:STARt 50
Related
Command
:MATH:OPTion:END

Rigol DS1000Z Series Specifications

General

Sample Rate	1 GSa/s (single channel), 500 MSa/s (dual channel)
Memory Depth	12 Mpts (standard), 24 Mpts (optional)
Vertical Sensitivity	1 mV/div to 10 V/div
Vertical Resolution	8 bits
Timebase Range	5 ns/div to 50 s/div
Channels	2 or 4
Display	7 inch color display
Trigger Modes	Edge, Pulse, Video
Connectivity	USB Host, USB Device, LAN (LXI)
Waveform Capture Rate	30, 000 wfms/s
Input Impedance	1 MΩ
Power Supply	100-240 VAC, 45-440 Hz