The Keysight M9168E is a PXI programmable step attenuator module that provides precise attenuation control across DC to 50 GHz, making it essential for RF and microwave test systems requiring dynamic signal conditioning. The module delivers 0 to 101 dB attenuation in 1 dB steps with 0.97 dB accuracy and flatness at 50 GHz. Built for production and verification environments, it maintains insertion loss repeatability of 0.03 dB per section over five million cycles.
Technical Specifications
• Frequency Range: DC to 50 GHz
• Attenuation Range: 0 to 101 dB
• Attenuation Step: 1 dB
• Attenuation Accuracy and Flatness: 0.97 dB at 50 GHz
• Insertion Loss Repeatability: 0.03 dB per section (5 million cycle operating life)
• Operating Temperature: Wide operating range for consistent measurement precision
– Key Features
• Programmable 1 dB step resolution across full attenuation range
• Guaranteed insertion loss repeatability ensures long-term measurement stability
• Operates from DC through 50 GHz in a single module
• PXI and PXIe form factor compatibility
– Typical Applications
• RF/microwave system calibration and characterization
• Dynamic power level control in automated test sequences
• Insertion loss and return loss measurements
• Signal path optimization in broadband testing
– Compatibility & Integration
The M9168E integrates into PXI and PXIe chassis environments. System requirements include Windows XP SP3 or later (32-bit) or Windows Vista SP1/SP2, processor speed of 600 MHz minimum (800 MHz recommended), 256 MB RAM minimum (1 GB recommended), and Keysight IO Libraries Suite version 16.0 or later. The M9018A PXIe chassis is recommended for embedded controller deployments. Complete installation and service documentation, including 3D CAD models in STEP format, is available through Keysight support channels.


















