UNI-T VNA calibration kits are designed for accurate calibration and error correction of compatible vector network analyzers and RF test equipment. Each kit provides precision Open, Short, and Load calibration standards to help establish reliable measurement accuracy before performing network analysis. Designed for professional RF and network analyzer testing, these calibration standards support consistent VNA measurements across their specified operating range. The kits are intended for use with compatible UNI-T spectrum analyzers and network analysis equipment. Connector configuration and other specifications vary by kit variant. Compatible UNI-T test equipment required.