Agilent / Keysight 85050C Precision Mechanical Calibration Kit, DC to 18 GHz, 7 mm

The Keysight 85050C is a precision mechanical calibration kit designed for 7 mm connector systems operating from DC to 18 GHz. It has the essential calibration standards

Open, Short, Load, and Thru/Line - required for accurate two-port characterization of vector network analyzers and high-frequency test equipment. Built for both laboratory and field deployment, this kit delivers ±0.005 dB typical precision with ±0.002 dB repeatability and exceptional temperature stability of ±0.001 dB/°C.

Technical Specifications

• Frequency Range: DC to 18 GHz


• Connector Type: 7 mm


• Calibration Standards: Open, Short (collet and threaded center conductor styles), Broadband Load, Lowband Load, Precision Airline (Thru/Line)


• Precision: ±0.005 dB typical


• Repeatability: ±0.002 dB typical


• Temperature Stability: ±0.001 dB/°C


• Return Loss (Broadband Loads): ≥38 dB DC to 18 GHz


• Return Loss (Lowband Loads): ≥52 dB DC to 2 GHz


• Return Loss (Precision Airline): >60 dB 2 to 18 GHz


• Phase Accuracy

Shorts: ±0.2° (DC–2 GHz), ±0.3° (2–8 GHz), ±0.5° (8–18 GHz)

Phase Accuracy

Opens: ±0.3° (DC–2 GHz), ±0.4° (2–18 GHz), ±0.6° (8–18 GHz)

Key Features

• Supports both TRL and SOLT calibration methodologies


• Rugged construction for long-term field and laboratory use


• Includes torque wrench (3/4 in, 135 N·cm), connector gages, and collet extractor tool


• Gender adapters included for test port configuration


• Calibration standard definitions available for direct network analyzer integration

Typical Applications

• Vector network analyzer verification and error correction


• RF and microwave component characterization


• High-frequency impedance and reflection measurements


• On-site calibration in field service environments

Compatibility & Integration Designed for Keysight (Agilent/HP) network analyzers including 8510C and 8720 series. Compatible with RF LCR meters and impedance/material analyzers. Supports E5061B systems when referenced to compatible kit configurations.