The Rigol DSA815 is a compact spectrum analyzer covering 9 kHz to 1.5 GHz, engineered for RF signal measurement, frequency domain analysis, and wireless device troubleshooting. Its digital IF architecture delivers 1 Hz frequency resolution and distinguishes closely spaced signals with precision. The instrument displays measurements on an 8-inch widescreen TFT display with an intuitive interface for rapid signal characterization across laboratory and field environments.
Technical Specifications
Frequency Performance
• Frequency range: 9 kHz to 1.5 GHz
• Frequency resolution: 1 Hz
• Frequency span: 0 Hz, 100 Hz to 1.5 GHz
• Internal frequency reference: 10 MHz with < 2 ppm/year aging rate
• Frequency reference temperature drift: < 2 ppm (20°C to 30°C)
• Marker frequency counter resolution: 1 Hz to 100 kHz selectable
Amplitude & Signal Detection
• Displayed average noise level (DANL): -155 dBm typical
• Amplitude measurement range: 10 MHz to 1.5 GHz from DANL to +20 dBm; 100 kHz to 10 MHz from DANL to 0 dBm
• Maximum CW RF input power: +20 dBm (100 mW) at 30 dB attenuation
• Maximum RF input level before damage: +30 dBm (1 W)
• Maximum DC voltage at input: 50 V
• Total amplitude uncertainty: < 1.5 dB to < 0.8 dB nominal
• Level measurement uncertainty: < 0.8 dB
Bandwidth & Filtering
• Resolution bandwidth (RBW, -3 dB): 100 Hz to 1 MHz in 1-3-10 sequence; minimum 10 Hz
• Resolution bandwidth uncertainty: < 5% nominal
• Resolution filter shape factor (60 dB:3 dB): < 5 nominal
• Video bandwidth (VBW, -3 dB): 1 Hz to 3 MHz in 1-3-10 sequence
Phase Noise
• SSB phase noise: < -80 dBc/Hz at 10 kHz offset; < -98 dBc/Hz typical
Tracking Generator (DSA815-TG option)
• Frequency range: 9 kHz to 1.5 GHz
• Output level: -20 dBm to 0 dBm in 1 dB steps
• Output flatness (1 MHz to 1.5 GHz): ±3 dB
– Key Features
• TFT display with widescreen format for signal visualization
• 1 Hz frequency resolution for precise tone identification
• Low noise floor supports weak signal detection
• Selectable bandwidth filters optimize measurement dynamic range
• Optional tracking generator enables transmission and filter measurements
– Typical Applications
• RF component characterization and validation
• Wireless device compliance testing
• Interference identification and source location
• Cable and antenna loss measurement (with tracking generator)
• Signal integrity assessment in communications systems
