Agilent/Keysight 85058E

The Keysight 85058E is an economy mechanical calibration kit for precision calibration of 1.85 mm network analyzers operating DC to 67 GHz. This kit characterizes and compensates systematic errors in RF and microwave test equipment, delivering calibrated measurements across the full frequency range. Six calibration standards enable 1-port, 2-port, and TRM (thru-reflect-match) calibrations using both data-based and polynomial models.

Technical Specifications

Frequency Range: DC to 67 GHz Connector Interface: 1.85 mm (compatible with 2.4 mm connectors) Calibration Standards: Six precision standards (OSL type: open, short, load) Supported Methods: 1-port, 2-port, and TRM calibration; data-based and polynomial model definitions Residual System Calibration Error (Economy Kit):

• 2–10 GHz: 0.021–0.027 dB insertion loss


• 10–20 GHz: 0.029–0.035 dB insertion loss


• 20–35 GHz: 0.028–0.035 dB insertion loss


• 35–60 GHz: 0.052–0.062 dB insertion loss


• 60–67 GHz: 0.055 dB insertion loss Operating Temperature: +20 °C to +26 °C (calibration reference) Temperature Stability: ±1 °C from measurement calibration point Storage Temperature: −40 °C to +75 °C Relative Humidity: 0% to 95% at 40 °C, non-condensing

Key Features

• Mechanical calibration standards with low insertion loss across frequency bands


• Includes gender-change adapters for flexible test port configuration


• Torque wrench provided for correct standard connection


• Standards definitions supplied on disk for direct network analyzer integration


• Commercial calibration certificate included


• Foam-lined storage case for transport protection

Typical Applications RF and microwave measurement campaigns requiring full two-port error correction. Production test environments and field calibration of Keysight network analyzers at 1.85 mm interface points.

Compatibility & Integration Designed for Keysight network analyzers equipped with 1.85 mm connectors. Supports both 85058E Data-Based and 85058EP Polynomial circuit model definitions.