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Rigol DSG821 RF Signal Generator - 9Khz to 2.1Ghz

by Rigol
Original price $2,299.00 - Original price $2,299.00
Original price
$2,299.00 - $2,299.00
Current price $2,299.00

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Manuals, Datasheets, and Other Documents

The Rigol DSG821 is a powerful RF signal generator that provides uncompromised RF signal generation capabilities at an unprecedented value. The unit features an output frequency from 9 kHz to 2.1 Ghz, low SSB phase noise (-112 dBc/Hz), high amplitude accuracy (<0.5 dB), and resolution of 0.01Hz at any frequency. 

The DSG821 rivals those of its class, offering advanced capabilities including flexible frequency and amplitude sweep functions, complete AM/FM/ØM analog modulation functions, and pulse and pulse train modulation at no additional cost!* At a little over 9 lbs, the compact, lightweight unit occupies less rack and workbench space while still providing exceptional functionality and specs. 

*Previously, a separate purchase of Rigol’s DSG800-PUG option was required for pulse and pulse train modulation. Now, this option is provided with every DSG800 series signal generator. 

Key Features

  • 9 kHz to 2.1 Ghz frequency range
  • Up to -112 dBc/Hz (typical) phase noise
  • Up to +20 dBm (typical) maximum output power
  • Higher level of amplitude accuracy, up to 0.5 dB (typical)
  • Superb signal stability
  • Flexible frequency and amplitude sweep functions   
  • Complete AM/FM/ØM analog modulation functions   
  • Standard LF output function   
  • Powerful pulse modulation function       
  • Open vector modulation function   
  • System flatness calibration function   
  • Simple and easy to operate
  • USB Host, USB Device, and LAN communication interfaces
  • 3.5” 320 (RGB) × 240 TFT-LCD screen

About Rigol DSG800 Series RF Signal Generators

Rigol’s DSG800 series of RF signal generators provides clean CW signals and complex modulation formats for mainstream RF applications. The DSG800 series covers output frequencies from 9 kHz to 3.6 GHz. The instruments provide maximum output power up to +20 dBm and low SSB phase noise -112 dBc/Hz, amplitude accuracy of +/- 0.5 dB, and frequency resolution of 0.01 Hz at any frequency.


Max. Frequency

Phase Noise

Amplitude Accuracy (typical)


1.5 GHz

<-112 dBc/Hz

<0.5 dB


2.1 GHz

<-112 dBc/Hz

<0.5 dB


3.6 GHz

<-112 dBc/Hz

<0.5 dB


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