The Keysight 85131F Flexible Cable Set provides precision interconnection for network analyzer test ports operating across DC to 26.5 GHz. This two-cable assembly connects devices under test between standardized 3.5 mm connectors, delivering controlled electrical performance in high-frequency measurement setups.
Technical Specifications
• Frequency Range: DC to 26.5 GHz
• Cable Length: 62.2 cm (24.5 inches) per cable
• Return Loss: ≥16 dB
• Insertion Loss (Test Port): 0.25 × √f + 0.2 dB (f in GHz)
• Insertion Loss (Device Connector): 1.5 dB maximum at 26.5 GHz
• Phase Stability: ≤0.12 dB with 90° bend at 3–4 inch radius
• Phase Change: 0.13 × f + 0.5 degrees (f in GHz)
– Key Features
• Two flexible cables optimized for DUT connection between test ports
• PSC (Precision Slotless Connector) technology on test port end—enhances repeatability and durability versus standard slotted connectors
• 3.5 mm female PSC connector mates with male NMD-3.5 mm test ports; not compatible with standard male 3.5 mm connectors
• Device end terminates in 3.5 mm female-to-male configuration
• Electrical performance and cable stability specified at 25 °C ±5 °C after 90 minutes thermal stabilization
– Typical Applications
• Network analyzer S-parameter and impedance measurements
• RF and microwave device characterization to 26.5 GHz
• Precision test setups requiring controlled phase and insertion loss
– Compatibility & Integration
Designed for network analyzers featuring male NMD-3.5 mm test ports. The rugged PSC female connector on the test port end is purpose-built for analyzer test points and will not mate with standard male connectors. The two-cable configuration allows the DUT to be suspended or mounted between cable terminations.
