RG 188 is a coaxial cable designed for reliable high-frequency signal transmission with excellent electrical and thermal stability.It features a silver-plated copper conductor, PTFE dielectric, and a durable white PTFE jacket for consistent performance. Technical Specifications Cable Type: RG 188 Coaxial Cable Impedance: 50 Ohm Colour: White Inner Conductor: Silver-plated copper wire, diameter Dielectric: PTFE, 1.52 mm diameter Outer Shield: Tin-plated copper wire braiding, 1.89 mm diameter Outer Jacket: PTFE (White), 2.54 mm overall diameter