... copper cable. low attenuation,low VSWR, high power rate 1-5/8" Aluminum Cable Consruction ItemMaterialDiameter(mm) Inner conductorCu-tube17 ... )4000MΩ.km VSWR800~1000MHz, ≤1.10 1700~2500MHz, ≤1.13 2500~3000MHz, ≤1.15 5~3000MHz, ≤1.15 FrequencyAttenuation(db/100m)Average ... 2200MHZ4.262.87 2500MHZ4.622.64 Package LengthsizeN.W G.W500meter/drum2000*2000*700mm410kgs/drum610kgs/drum 1-5/8" Aluminum cable