The Rigol DSA875-TG is a 7.5 GHz spectrum analyzer with integrated tracking generator, delivering precision RF measurements and signal analysis across 9 kHz to 7.5 GHz. All-digital IF architecture ensures enhanced reliability and repeatability. The instrument combines low noise performance—typical DANL of −161 dBm—with fast sweep capabilities and comprehensive test functions including auto tune, auto range, auto scale, and auto couple. An 8-inch WVGA color LCD (800×480 pixels) displays measurement data with clarity. Compact form factor (361.6 × 178.8 × 128 mm) and low weight (5.15 kg with tracking generator) enable both benchtop and field deployment. The DSA875-TG addresses EMI diagnostics, component characterization, filter and amplifier testing, and transmission line evaluation.
Technical Specifications
• Frequency Range: 9 kHz to 7.5 GHz
• Tracking Generator: Full-span coverage to 7.5 GHz
• Displayed Average Noise Level: −161 dBm typical (normalized to 1 Hz); −148 to −161 dBm with preamplifier
• Phase Noise: −98 dBc/Hz at 10 kHz offset; −100 dBc/Hz at 100 kHz offset; −120 dBc/Hz at 1 MHz offset (typical)
• Resolution Bandwidth: 10 Hz to 1 MHz (1-3-10 sequence)
• Video Bandwidth: 1 Hz to 3 MHz (1-3-10 sequence)
• Level Measurement Uncertainty: Less than 0.8 dB nominal
• Amplitude Range: −161 dBm to +20 dBm
• Input Impedance: 50 Ω nominal
• Maximum Input Power: +20 dBm CW
• Third-Order Intercept (IP3): +15 dBm
• Sweep Time: 10 ms to 7500 s (span ≥100 Hz); 20 µs to 7500 s (span <100 Hz); 75 seconds for 0–7.5 GHz at 10 kHz RBW
– Key Features
• 8-inch WVGA color LCD with 800×480 pixel resolution
• IEEE-488.2 GPIB, USB 2.0 (Host/Device), and LXI Core 2011 connectivity
• 10/100Base LAN interface
• 10 MHz reference clock input/output
• 50 Ω BNC and N-female connectors
• AC power: 100–240 V nominal, 45–440 Hz; typical consumption 35 W
• Operating temperature: 0°C to 50°C
– Typical Applications
• EMI/EMC pre-compliance and diagnostics
• Filter and amplifier gain/phase response characterization
• Cable and transmission line loss measurement
• Oscillator phase noise evaluation
