The Keysight 44476B is a microwave relay driver module that enables integration of external coaxial switches into the 3499A/B/C switch/control system for automated RF signal routing. The module provides mounting locations and interface control for two user-selected 876XX series coaxial switches in three-, four-, or five-pole configurations, eliminating the need for integrated RF switching and allowing custom matrix or transfer switch designs.
Technical Specifications
• Impedance: 50/75 ohm coaxial switching
• Coil voltage option: 5 V DC (Option 011)
• Maximum frequency extension: 26.5 GHz (with Keysight 8762x series switches)
– Key Features
• Accepts any two Agilent 876XX or Keysight 876XX series coaxial switches
• Modular jacks for user-installed RF switch connections
• Three-, four-, and five-pole switch configurations supported
• Enables construction of transfer switches and switch matrices
• Standard package includes 44476B module, one connection terminal, and Certificate of Verification
– Typical Applications
• Complex signal routing via switch matrices
• Transfer switching between signal paths and measurement instruments
• Multi-band receiver and transmitter testing
• Signal path management in high-frequency test environments
– Compatibility & Integration
The 44476B integrates directly with Agilent 876XX and Keysight 876XX coaxial switch families and functions as a core component within the Keysight 3499A/B/C automated switch/control platform.
