Attenuation parameter:Normal. Attenuation(dB/m):0.276 (100MHz)Normal. Attenuation(dB/m):0.623(400MHz)Normal. Attenuation(dB/m):1.12(1000MHz) Description:Solid center conductor, dielectric insulation, and tinned copper braid shielding; durable and flexible PVC outer layer. Perfect for broadcast, video transmission and video surveillance. Specification: Type: BNC male to BNC male extension Cable Impedance: 50 ohm Nickel plated connector body Gold plated brass contacts Package Includes:2 x BNC to BNC cable