The Agilent/Keysight 85130B Test Port Adapter Set protects sensitive network analyzer test ports while enabling precise RF and microwave measurements across a wide frequency range. This two-adapter set converts ruggedized 3.5 mm test set ports to 7 mm precision connectors, accommodating a broad range of devices under test. The NMD-3.5 mm female connector on the test set end features a specialized ruggedized design that interfaces exclusively with protected test ports, preventing incompatible connections and safeguarding analyzer input stages. The 7 mm precision output connector delivers signal-integrity performance suitable for demanding characterization work from DC through 18 GHz.
Technical Specifications
• Frequency Range: DC to 18 GHz
• Return Loss: 28 dB or better
• Input Connector: NMD-3.5 mm female (ruggedized)
• Output Connector: 7 mm precision connector
• Inner Conductor Recession (NMD-3.5 mm): 0.0000 – 0.0022 inches (0.000 – 0.056 mm) below outer conductor mating surface
• Inner Conductor Recession (7 mm): 0.0005 ±0.0003 inches (0.013 ±0.008 mm) below outer conductor mating surface (collet removed)
• Quantity: Two adapters per set
• Dimensions: 53.3 mm × 22.9 mm × 11.2 mm
• Weight: 15 g
– Key Features
• Ruggedized NMD-3.5 mm female connector protects analyzer test ports from direct DUT contact
• Non-standard connector design prevents misapplication with standard connectors
• Precision 7 mm output interface maintains signal fidelity across full frequency band
• 28 dB return loss performance minimizes measurement uncertainty
– Typical Applications
• Network analyzer port protection during device characterization
• RF and microwave component testing requiring adapter-isolated connections
• Systems requiring transition between ruggedized test set interfaces and precision DUT connectors
– Compatibility & Integration
Designed exclusively for 3.5 mm ruggedized test sets on Agilent/Keysight network analyzers. Not suitable for use with 7 mm test set ports. Finger-tight connection to test ports; use 20 mm torque wrench on spanner for controlled mating. Follow connector care guidelines per Keysight document 08510-90064.


















