Cal Test Electronics CT3300A Instrument Grade Coaxial Adapters serve as a cost-effective middle ground between general-purpose and expensive metrology grade connectors. These adapters feature a 50Ω impedance, bandwidths up to 18GHz, gold plated contacts, and PTFE dielectrics. Cal Test Electronics CT3300A Instrument Grade Adapters offer high accuracy, a low VSWR, and a flat frequency response.