Agilent/Keysight 85131F

The Agilent/Keysight 85131F is a flexible test port cable set engineered for precision network analyzer measurements. Featuring a 3.5 mm female to 3.5 mm interface with NMD-3.5 mm female connectors at the test port and PSC-3.5 mm female/3.5 mm male connectors at the DUT end, this 62.2 cm cable delivers stable electrical performance across demanding RF test applications.

– Technical Specifications

• Frequency Range: DC to 26.5 GHz
• Connector Configuration: NMD-3.5 mm female (test port) to PSC-3.5 mm female (test) and 3.5 mm male (DUT)
• Cable Length: 62.2 cm (24.5 inches)
• Return Loss: ≥16 dB (test port connector); ≥6 dB typical
• Insertion Loss: 0.25 × √f + 0.2 dB at test port; 1.5 dB maximum at device connector (f in GHz)
• Standing Wave Ratio: ≤0.25 × √f + 0.2 dB
• Minimum Bend Radius: 6.35 cm (2.5 inches)

– Key Features

• Phase and Amplitude Stability: Magnitude change <0.12 dB and phase change <0.13 × f + 0.5° under 90° bend at 3–4 inch radius (typical performance, non-warranted)
• NMD Connector Design: Enhanced stability through larger than standard coupling threads, ensuring repeatable measurements in precision test environments
• Operating Temperature Range: +20 °C to +26 °C
• Storage Temperature Range: −40 °C to +75 °C
• Environmental Compliance: Up to 80% relative humidity (non-condensing) at 30 °C operating; up to 95% relative humidity (non-condensing) at 40 °C storage; operation and storage below 4,500 meters altitude

– Typical Applications

Network analyzer test port interconnection for RF component characterization, device verification, and calibration applications requiring stable, repeatable performance to 26.5 GHz.

– Compatibility & Integration

Designed exclusively for Agilent and Keysight network analyzers equipped with male NMD-3.5 mm test ports. Part of a series including the 85131E and 85131H models.