Rigol DHO800 Series User Manual

Figure 9.7 FFT Operation Menu
Operation On/Off
Click or tap the
Operation on/off switch to enable the FFT operation result window.
The parameters such as center frequency, frequency range, and resolution are
displayed at the top of the window, as shown in the figure below. FFT resolution is the
quotient of the sample rate and the number of FFT points. If the number of FFT points
is a fixed value, then the higher the sample rate, the higher the resolution.
NOTE
The number of FFT analysis points can be 1 Mpts in maximum.
Source
Center
Frequency
Label
Sample
rate
Frequency
Span
Resolution
Figure 9.8 FFT Operation Window
Math Operation
DHO800 User Guide
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Rigol DHO800 Series Specifications

General

Channels	2 or 4 analog channels
Vertical Resolution	12-bit
Vertical Sensitivity	1 mV/div to 10 V/div
Timebase Range	1 ns/div to 1000 s/div
Power Supply	100-240 VAC, 50/60 Hz
Waveform Capture Rate	1, 000, 000 wfm/s
Interfaces	USB Host, USB Device, LAN
Digital Channels	Optional 16-channel MSO
Protocols Decoding	I2C, SPI, UART, CAN, LIN
Input Impedance	1 MΩ
Trigger Types	Edge, Pulse, Video, Slope, Pattern, Duration, Timeout, Runt, Window