The Racal Instruments 2351 is a VXIbus-compatible time interval analyzer engineered for high-resolution time and frequency measurements in real-time systems. With 8 picosecond resolution, the instrument captures and characterizes complex signals—including pulsed, swept, chirped radar, and frequency-modulated waveforms—without the dead time inherent to universal counter-timers. A patented digital signal processing algorithm enables rapid analysis across multiple modes, making it ideal for signal integrity verification, oscillator stability assessment, and high-speed ECL pulse characterization.
Technical Specifications
• Resolution: 8 picoseconds
• Frequency Range: Up to 250 MHz
• Data Storage: 8k events per channel, timestamped for real-time event sequencing
• Event Logging: Records event count and elapsed time when event rate exceeds stamping capability
– Key Features
• Discrimination Mode (CW Mode) with digital signal filtering and automatic carrier frequency calculation for FM drift analysis
• Swept Analysis Mode for complete signal characterization
• High-speed ECL pulse analysis capability
• Frequency modulation (FM) capture and analysis
• Multiple data output formats for system integration
• Continuous time interval measurement with event timestamping
– Typical Applications
• High-speed digital signal integrity verification
• Chirped and swept radar signal characterization
• Oscillator frequency stability analysis
• Production throughput optimization via fast real-time results
– Compatibility & Integration
The 2351 module integrates directly into VXIbus systems for automated test and measurement workflows. Multiple data output format options support diverse system architectures and post-processing requirements.
