The Agilent/Keysight 85058V is a precision verification kit designed for calibration and performance verification of network analyzers. It comprises a comprehensive set of precision calibration standards engineered to maintain measurement integrity across RF and microwave test environments.
Technical Specifications
Impedance: 50 ohms
Connector Types: High-precision connectors compatible with network analyzer ports; specific connector types (Type-N, 3.5mm, or 2.4mm) vary by kit variant
Construction: High-quality materials with precision machining for stability and measurement repeatability
– Key Features
The kit includes precision calibration standards for full two-port network parameter calibration:
• Short circuits—different polarity shorts for reflection coefficient measurement calibration
• Open circuits—complementary to shorts for reflection calibration
• 50-ohm loads—high-quality termination loads for transmission and reflection measurement calibration
• Thru connections—direct port-to-port connections for transmission measurement calibration
Each standard is manufactured to precise electrical specifications including insertion loss, return loss, and phase characteristics. Connector mating cycles and torque specifications are critical performance parameters detailed in accompanying product documentation.
– Typical Applications
The 85058V supports accurate network analyzer measurements in demanding RF and microwave test applications, providing verification of network analyzer performance parameters across multiple measurement domains.
– Compatibility & Integration
The kit is designed for compatibility with a range of Agilent and Keysight network analyzers. Specific model compatibility information is provided in the product user manual and technical datasheets.

















