The Agilent/Keysight 70908A is an RF section module for broadband input conversion within the 70000 Series Modular Measurement System. It functions as a plug-in converter for spectrum and lightwave signal analyzers, delivering enhanced sensitivity across microwave and lightwave modulation measurements through fundamental mixing architecture. The module spans 100 Hz to 22 GHz and features dynamic preselector tracking, integrated step attenuation, and direct IF signal output at 321.4 MHz.
– Technical Specifications
• Frequency Range: 100 Hz to 22 GHz
• Input Conversion: Broadband conversion utilizing fundamental mixing
• IF Output: 321.4 MHz
• Attenuator (Standard): 70 dB step attenuator in 10 dB increments
• Attenuator (Option H25): 5 dB step attenuator
• Module Form Factor: 2 slots in 70000 Series Modular Measurement System
– Key Features
• Fundamental Mixing Architecture: Delivers broadband input conversion from 100 Hz to 22 GHz with superior sensitivity and dynamic range performance for microwave and high-speed lightwave measurements.
• Dynamic Preselector Tracking: Internal preselector automatically adjusts to analyzer tuning frequency, optimizing amplitude accuracy without manual intervention.
• Integrated Step Attenuation: 70 dB attenuator (10 dB steps) standard configuration; 5 dB option available for fine-resolution control.
• IF Signal Access: 321.4 MHz IF output enables external signal analysis and custom measurement configurations.
• Dynamic Range Optimization: Second and third-order dynamic range performance enhanced when paired with analyzers exhibiting strong sensitivity and low distortion characteristics.
– Typical Applications
• Broadband RF and microwave signal analysis from 100 Hz to 22 GHz
• High-speed lightwave modulation rate characterization
• Sensitivity-critical measurement scenarios requiring reduced test times
• External IF signal processing and analysis
– Compatibility & Integration
• Compatible Analyzers: Agilent/Keysight 71210C Spectrum Analyzer; Agilent/Keysight 71400C Lightwave Signal Analyzer
• System Integration: Operates within 70000 Series Modular Measurement System; occupies 2 module slots
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