The Tektronix RSA5103B is a 3 GHz real-time spectrum analyzer engineered for capture and analysis of transient and complex RF signals. It delivers the combined functionality of a high-performance spectrum analyzer, wideband vector signal analyzer, and real-time spectrum analyzer with trigger-capture-analyze capabilities in a single instrument.
Technical Specifications
Frequency Coverage
• 1 Hz to 3 GHz operating range
Real-Time Acquisition Bandwidth
• Standard: 25 MHz
• Optional: 40 MHz (Opt. B40), 85 MHz (Opt. B85), 125 MHz (Opt. B125), or 165 MHz (Opt. B16x)
Dynamic Range Performance
• Displayed Average Noise Level: –150 dBm/Hz at 10 kHz; –157 dBm/Hz at 2 GHz; –167 dBm/Hz at 2 GHz with internal preamp
• Spurious-Free Dynamic Range: >70 dB across all acquisition bandwidths up to 165 MHz; 80 dB with HD options (B85HD, B125HD, B16xHD)
• 3rd Order Intercept: +17 dBm at 2 GHz
• Amplitude Accuracy: ±0.3 dB absolute to 3 GHz
Signal Processing
• DPX® spectrum processing engine: up to 3,125,000 spectrums per second
• 100% probability of intercept for signals as brief as 0.434 µs
• Swept DPX spectrum for full-range signal discovery
• DPX zero span with real-time amplitude, frequency, or phase analysis
• Gap-free DPX spectrograms
Triggering Capabilities
• DPX density™ trigger on single occurrences as brief as 0.434 µs
• Advanced time-qualified, runt, and frequency-edge triggers for events down to 20 ns
• Frequency mask trigger for spectral anomalies
• Frequency edge or power level transient triggers: 3.7 µs minimum in frequency domain, 9.1 ns in time domain
Sweep Performance
• 1 GHz sweep at 10 kHz RBW in less than 1 second
Phase Noise
• –113 dBc/Hz at 1 GHz (10 kHz offset)
• –134 dBc/Hz at 10 MHz carrier frequency (10 kHz offset)
Acquisition Memory
• 1 GB standard; upgradable to 4 GB
– Key Features
• Real-time transient event capture and analysis
• Multi-trigger engine for complex signal detection
• HD dynamic range options for reduced spurious response
• Internal preamplifier for enhanced sensitivity
– Typical Applications
• Wideband radar and pulsed RF signal analysis
• Frequency-agile communications monitoring
• Broadband satellite and microwave backhaul link characterization
• Educational RF measurement and signal analysis
