Agilent/Keysight 85130B

The Agilent/Keysight 85130B is a test port adapter set that protects network analyzer test ports during direct connection to devices under test. This two-adapter kit bridges NMD 3.5 mm female connectors on the network analyzer side to precision 7 mm male connectors on the DUT. The specialized female connector design prevents inadvertent mating with standard male connectors, eliminating risk of test port damage.

– Technical Specifications

• Frequency Range: DC to 18 GHz
• Return Loss: ≥ 28 dB across operating frequency range
• Test Set Connector: NMD 3.5 mm female
• DUT Connector: 7 mm male
• Kit Contents: Two 3.5 mm to 7 mm adapters

– Key Features

• Connector protection via specialized female interface prevents mating with standard male connectors
• High return loss performance (≥ 28 dB) ensures minimal signal reflection across full frequency range
• Field-replaceable center collet for the 7 mm connector extends service life
• Rugged NMD 3.5 mm female design safeguards analyzer test set ports from connection damage

– Typical Applications

• Network analyzer measurements with 7 mm DUT connectors
• High-frequency device characterization up to 18 GHz
• Production and field testing requiring port protection

– Compatibility & Integration

The 85130B integrates with network analyzers equipped with NMD 3.5 mm test ports and devices featuring precision 7 mm connectors. Proper torquing of the test set connector using a 20 mm torque wrench set to 96 N-cm (8 in-lb) is required to maintain performance specifications. Periodic return loss verification using a network analyzer is recommended annually to confirm continued performance. Connector maintenance requires compressed air cleaning followed by isopropyl alcohol with foam swabs if necessary; abrasive materials must be avoided.