The Keysight E8482A is a C-size VXI RF multiplexer module that routes and switches signals up to 3 GHz across six independent 1×4 channel banks. Engineered for automated test equipment systems, it delivers high isolation and low VSWR through tree-switched relay architecture, maintaining signal integrity across demanding RF test applications. Each of the six banks independently routes one active channel to a common output, supporting both standalone operation and control of external RF expanders.
## Technical Specifications
The module operates across 50 Ohm impedance with frequency performance to 3 GHz. Insertion loss ranges from <0.5 dB below 500 MHz to <2.0 dB at 3 GHz (typical). Channel-to-channel crosstalk measures <-60 dB at 500 MHz, degrading to <-39 dB at 3 GHz (typical). VSWR spans 1.15 at 500 MHz to 1.50 at 3 GHz (typical).
Electrical handling includes 30 Vdc or 30 Vac peak maximum input, with 0.5 A DC and 10 W DC per-channel limits. Maximum thermal offset is 10 µV. Module power consumption draws 0.10 A at +5 V and 0.21 A at +12 V during operation; standby draws 0.10 A at +5 V and 0.10 A at +12 V.
## Key Features
• Six independent 1×4 multiplexer banks for flexible signal routing
• SMB male connectors for high-performance RF connections
• Tree-switched relay configuration ensures high isolation and predictable VSWR
• Single active channel per bank enforces clean signal paths
• SCPI command programming for automated test integration
• Controlled expander support extends switching capabilities
## Typical Applications
Automated RF and microwave test systems requiring multi-channel signal distribution, component characterization across multiple test ports, and production test environments where switching speed and isolation are critical performance factors.
## Compatibility & Integration
Designed as a register-based VXI module for standard test system chassis. Supports external E1473A or E1475A RF multiplexer expanders for expanded channel capacity. SCPI programming enables direct integration into existing automated test sequences and control software.
