DSG821 - Generator Rigol - Free user manual and instructions
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| Product Type | Signal Generator |
| Brand | Rigol |
| Model | DSG821 |
| Frequency Range | 9 kHz to 2.1 GHz |
| Frequency Resolution | 0.001 Hz |
| Output Level Range | -110 dBm to +13 dBm (typical) |
| Output Level Resolution | 0.01 dB |
| Phase Noise (typical) | -116 dBc/Hz at 20 kHz offset (1 GHz) |
| Modulation Types | AM, FM, PM, Pulse, IQ |
| Interfaces | USB, LAN, GPIB (optional) |
| Display | 4.3-inch TFT color LCD |
| Power Supply | 100-240 VAC, 50/60 Hz |
| Dimensions (W x H x D) | 255 x 102 x 379 mm |
| Weight | Approx. 4.8 kg |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -20°C to 70°C |
| Included Accessories | Power cord, USB cable, Quick guide |
| Warranty | 3 years (standard) |
| Cleaning | Use a dry soft cloth; avoid solvents |
| Safety | Overvoltage protection, CE, UL certified |
| Reparability | Service manual available, spare parts via Rigol support |
Frequently Asked Questions - DSG821 Rigol
How do I set the output frequency on the DSG821?
Press the Freq key on the front panel, then use the numeric keypad or rotary knob to enter the desired frequency. Press the appropriate unit key (GHz, MHz, kHz, Hz) to confirm.
What is the maximum output power of the DSG821?
The maximum output power is typically +13 dBm (20 mW) for frequencies below 1 GHz. For higher frequencies, the maximum may be slightly lower. Always check the specifications for proper level setting.
How do I enable AM modulation on the DSG821?
Press the Mod key, select Type and choose AM. Then set the modulation source (internal or external), depth, and rate using the corresponding softkeys.
What is the phase noise specification of the DSG821?
The typical phase noise at 1 GHz is -116 dBc/Hz at a 20 kHz offset. This makes it suitable for applications requiring low close-in phase noise.
Can I control the DSG821 remotely via computer?
Yes, the DSG821 supports remote control via USB, LAN, and optional GPIB interfaces. You can use SCPI commands or Rigol's UltraSigma software.
How do I perform a factory reset on the DSG821?
Press the Utility key, navigate to System > Factory Default, and confirm. This will restore all settings to out-of-box state.
What type of output connector does the DSG821 have?
The RF output uses a standard N-type female connector (50 ohms impedance). An adapter may be needed for other connector types.
How do I upgrade the firmware on the DSG821?
Download the latest firmware from Rigol's website, save it to a USB drive, then insert the drive into the generator. Go to Utility > System > Firmware Update and follow the prompts.
What is the frequency accuracy of the DSG821?
The internal timebase has an accuracy of ±0.5 ppm (standard) or ±0.1 ppm with the optional high-stability OCXO. External 10 MHz reference input is also supported.
How do I set the output level in dBm?
Press the Ampl key, then use the numeric keypad or knob to enter the desired level in dBm. You can also toggle the unit to dBuV, mV, or μV using the softkey.
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USER MANUAL DSG821 Rigol
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Product information
Brand : Rigol
Model : DSG821
Category : Generator