The Agilent/Keysight 85131-60013 is a flexible test port cable engineered for precision RF measurements with network analyzers. Operating across DC to 26.5 GHz, this 50 Ω cable delivers consistent performance in laboratory and field test environments. The cable features NMD-3.5 mm female connectors at the test set end and PSC-3.5 mm female connectors at the DUT end, with careful attention to phase and magnitude stability across its operating bandwidth.
Technical Specifications
Electrical Performance
• Frequency Range: DC to 26.5 GHz
• Impedance: 50 Ω
• Return Loss: ≥ 16 dB
• Insertion Loss (Test Port Connector): ≤ 0.35√f + 0.3 dB (f in GHz)
• Insertion Loss (Device Connector): 2.1 dB at maximum frequency
• Standing Wave Ratio: ≤ 1.38
Physical Characteristics
• Cable Length: Approximately 96.5 cm (38 inches)
• Connector Type (Test Set): NMD-3.5 mm female, slotted
• Connector Type (DUT): PSC-3.5 mm female, slotless
• Minimum Bend Radius: 6.35 cm (2.5 inches)
• Electrical Length: 1.150 m (45.276 inches)
Environmental Operating Conditions
• Operating Temperature: +20 °C to +26 °C
• Storage Temperature: -40 °C to +75 °C
• Operating Humidity: Up to 80% at 30 °C (non-condensing)
• Storage Humidity: Up to 95% at 40 °C (non-condensing)
• Altitude: < 4,500 meters
Stability Parameters (typical, with 90° bend)
• Magnitude Stability: < 0.22 dB change
• Phase Stability: < 0.16°f + 0.8° (f in GHz)
– Key Features
• NMD connector design ensures compatibility with Keysight network analyzer test ports
• Controlled insertion loss profile across full frequency range
• High return loss specification minimizes measurement reflections
• Proven phase stability for accurate S-parameter acquisition
• Low bend-radius capability supports compact test setups
– Typical Applications
• Network analyzer S-parameter measurements
• RF component characterization
• Antenna testing and validation
• Spectrum analyzer system integration
– Compatibility & Integration
Designed for Keysight network analyzers with male NMD-3.5 mm test ports. Compatible with HP/Agilent 8510 and PNA series instruments.


















