The Rigol RSA3045N-OCXO is a real-time spectrum analyzer integrating an Oven Controlled Crystal Oscillator (OCXO) for exceptional frequency stability in demanding RF measurement applications. Operating from 9 kHz to 4.5 GHz, it delivers real-time signal acquisition and analysis with Ultra-Real technology across a standard 10 MHz real-time bandwidth (expandable to 40 MHz). The instrument combines spectrum analysis, Vector Network Analysis (VNA) capabilities, and tracking generator functionality up to 4.5 GHz, enabling S-parameter measurements, Distance to Fault analysis, and Smith chart characterization.
Technical Specifications
• Frequency Range: 9 kHz to 4.5 GHz (spectrum analyzer); 100 kHz to 4.5 GHz (VNA)
• Real-Time Bandwidth: 10 MHz standard; up to 40 MHz optional
• OCXO Frequency Accuracy: < 0.1 ppm
• OCXO Aging Rate: < 0.03 ppm/year
• OCXO Temperature Stability: < 0.005 ppm (0°C to 50°C, reference 25°C)
• Displayed Average Noise Level: < -161 dBm (with optional preamplifier)
• Phase Noise: < -102 dBc/Hz
• Level Measurement Uncertainty: < 1.0 dB
• Resolution Bandwidth: 1 Hz minimum
• Probability of Intercept: 9.3 µs (100% POI with 10 MHz RTBW); guaranteed capture for pulses ≥ 7.45 µs
• Internal Reference: 10 MHz at < 1 ppm standard accuracy
– Key Features
• Integrated OCXO reference delivers < 0.1 ppm frequency accuracy with < 0.005 ppm temperature stability
• Vector Network Analysis for S11, S21, and Distance to Fault measurements
• Tracking generator up to 4.5 GHz
• Ultra-Real technology for deterministic signal capture
• Advanced visualization: Spectrogram, Density, Power vs. Time
• 10.1" capacitive touchscreen display with gesture support
• Multiple connectivity: USB, LAN, HDMI, 10 MHz IN/OUT, TRIGGER IN/OUT
– Typical Applications
• RF component characterization and network analysis
• Pulsed signal detection and transient measurement
• System integration and RF troubleshooting
• Phase noise and spectral purity assessment
– Compatibility & Integration
VNA mode and tracking generator functionality are standard on RSA3000N models. The 10 MHz reference input/output supports external frequency standard integration.

















