The Keysight E1366A is a dual 1×4 RF multiplexer module delivering independent signal routing across two 50 Ohm banks within a single VXIbus/VMEbus B-size slot. Each bank includes four channels and one common terminal, enabling flexible test signal distribution to oscilloscopes, spectrum analyzers, network analyzers, and RF measurement instruments up to 1.3 GHz.
Technical Specifications
• Configuration: Dual 1×4 multiplexer, two independent banks (Bank 0 and Bank 1)
• Characteristic Impedance: 50 Ohm
• Operating Frequency: Up to 1.3 GHz
• Connectors: BNC
• Switching Type: Non-latching armature relays with tree-switched configuration
• Maximum Voltage (Channel to Common): 42 Vdc or 42 Vac peak
• Maximum Current (Per Channel or Common): 1 A DC/ACrms
• Maximum Power (Per Channel or Common): 24 W DC / 24 VA AC
• Channel Termination: Off-channels terminated with 50 Ohm resistors (removable)
– Key Features
• Tree-switched relay architecture provides high isolation and low VSWR performance
• Register-based control via SCPI commands for automated test sequencing
• All channels open at power-on or reset with termination resistors engaged
• Eight total channels (four per multiplexer bank) in minimal footprint
• BNC connectors for direct integration with standard RF test equipment
– Typical Applications
• Multi-point RF signal routing and switching
• Test signal distribution in automated RF measurement systems
• Channel selection for parallel testing configurations
• Signal path switching in broadband test environments (DC to 1.3 GHz)
– Compatibility & Integration
• VXIbus/VMEbus: Compatible with B-size mainframes
• C-size Mainframes: Operational with E1403C active adapter
• Cabling: Keysight/Agilent 50 Ohm BNC cables recommended

















