The Rigol DSG821A is an RF signal generator spanning 9 kHz to 2.1 GHz, engineered for research, development, manufacturing, and educational applications. It delivers maximum output power of +20 dBm with exceptional phase noise performance and flexible modulation capabilities including AM, FM, phase modulation, and I/Q-based digital formats. The instrument combines precision frequency generation with user-accessible controls and remote automation via USB and LAN interfaces.
Technical Specifications
Frequency Performance
• Range: 9 kHz to 2.1 GHz
• Resolution: 0.01 Hz
• Internal clock stability: 2 ppm (standard); 5 ppb (optional high-stability option)
Output Power
• Maximum output: +20 dBm (typical)
• Amplitude range: −110 dBm to +13 dBm
• Amplitude accuracy: ±0.5 dB (typical)
Signal Quality
• Phase noise: −112 dBc/Hz typical @ 20 kHz offset
Modulation Capabilities
• Standard modes: AM, FM, phase modulation (ØM)
• Digital modulation: I/Q modulation (internal and external), supporting FSK, QAM, QPSK
• Optional pulse modulation: up to 70 dB on/off ratio
• Vector modulation function: supported
Sweep Functions
• Frequency and amplitude sweep with step and list modes
• Step sweep: 2 to 65,535 points; List sweep: 1 to 6,001 points
• Dwell time: 20 ms to 100 s
• Sweep shapes: triangle, ramp
Interfaces & Control
• USB Host, USB Device, LAN connectivity
• SCPI command set standard
• 3.5″ TFT LCD touchscreen (320 × 240)
Physical & Electrical
• Dimensions: 261.5 × 112 × 318.4 mm (2U height)
• Weight: 4.2 kg
• Power consumption: ≤60 W (100–240 VAC input)
• Rack mount kit available
– Key Features
• Cost-effective RF signal generation
• Economical platform for IoT, RF development, and industrial production
• System flatness calibration function
• LF output function standard
• Durable construction with premium materials
– Typical Applications
• Design and debug workflows
• Educational laboratory environments
• Industrial production line testing
• Research and development
– Compatibility & Integration
Remote control via USB and LAN with standard SCPI commands enables integration into automated test systems and laboratory frameworks.
