Agilent/Keysight M9148A

The Keysight M9148A is a PXI RF multiplexer module that routes RF signals up to 3 GHz to measurement equipment in automated test systems. This 1 x 8 switch multiplexer occupies a single PXI slot and delivers the signal integrity and dynamic range required for high-frequency applications. With 42 dB isolation at 1 GHz and insertion loss of 1.2 dB at 3 GHz, the module maintains low VSWR across its operating range. The M9148A handles switching loads up to 30 V, 1 A, and 10 W, making it suitable for both passive signal routing and controlled switching applications.

– Technical Specifications

• Frequency Range: DC to 3 GHz
• Configuration: 1 x 8 RF switch multiplexer
• Impedance: 50 Ω
• Connectors: SMB (snap-on front panel)
• Isolation: 42 dB at 1 GHz
• Insertion Loss: 1.2 dB at 3 GHz
• Switching Capabilities:
– Voltage: 30 V
– Current: 1 A
– Power: 10 W
• Form Factor: Single PXI slot module

– Key Features

• Eight independent RF paths for flexible signal routing
• Low insertion loss and high isolation minimize signal degradation
• 50 Ω matched impedance ensures compatibility with standard RF systems
• SMB connectors provide secure, repeatable connections
• DC-coupled operation supports both AC and DC signal applications

– Typical Applications

• Multi-port RF device testing and characterization
• Automated antenna and filter measurements
• Signal path validation in modular test systems
• Component-level RF validation up to 3 GHz

– Compatibility & Integration

The M9148A integrates into PXI chassis and works with Keysight Connection Expert and Soft Front Panel (SFP) software. Programming support includes Visual Studio, C, C++, C#, Visual Basic, MATLAB, and LabVIEW through Keysight’s IO Libraries Suite.