Keysight (Agilent) 85058D Mechanical Calibration Kit, 1.85mm

The Keysight (Agilent) 85058D Mechanical Calibration Kit is a precision calibration instrument for network analyzers and RF/microwave test equipment using 1.85 mm connector interfaces. It delivers error-corrected measurements from DC to 67 GHz, enabling broadband coaxial calibrations up to 65 GHz with instrument-grade accuracy. The kit includes essential calibration standards

Open, Short, Load, and Thru - supporting 1-port, 2-port, and Through-Reflect-Match (TRM) calibration methods.

The 1.85 mm connector operates mode-free to 67 GHz and is fully mateable with 2.4 mm connectors, providing stable connections for demanding measurement environments. High-quality construction ensures durability and maintains calibration stability over extended use.

Technical Specifications

• Connector Type: 1.85 mm coaxial; mode-free operation to 67 GHz; fully mateable with 2.4 mm connectors


• Frequency Range: DC to 67 GHz


• Calibration Standards: Open, Short, Load, Thru (specific kit variants contain different numbers of standards)


• Calibration Methods: 1-port, 2-port, and Through-Reflect-Match (TRM); Broadband SOLT supported


• Construction: High-quality materials for durability and long-term calibration stability

Key Features

• Mode-free 1.85 mm connector performance extends to 67 GHz


• Cross-compatible with 2.4 mm connector systems


• Instrument-grade calibration standards for high-accuracy results


• Supports multiple calibration topologies for flexible measurement requirements

Typical Applications

• Network analyzer calibration from DC to 67 GHz


• Millimeter-wave system characterization


• High-frequency coaxial measurements requiring broadband accuracy

Compatibility & Integration Designed for use with Keysight network analyzers including the 8510 series and PNA (Private Network Analyzer) series. Effective integration with millimeter-wave systems, including those with waveguide-to-coax adapters and systems such as the Keysight 85109 (62.5 GHz).