The Keysight 85521A is a mechanical OSLT calibration kit for 8522xA Series vector network analyzer measurements from DC through 26.5 GHz. Its 3.5 mm female interface and four-in-one set of standards provide the hardware needed for a repeatable calibration workflow.
Key specifications
- Frequency range: DC to 26.5 GHz
- Calibration method: OSLT (Open, Short, Load, Thru)
- Connector: 3.5 mm female
- Four-in-one mechanical calibration standard set
- Traceable calibration meeting ISO 17025 requirements
Recommended applications
Recommended for VNA calibration, RF and microwave component characterization, and test-system verification in research, telecommunications, aerospace, defense, and electronics production environments.





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