The 2801-75 from Insulated Wire is a RF Cable with Frequency Range 0.5 to 18 GHz, Cut off Frequency 19.5 GHz, Propagation Velocity 0.83, Cable Diameter 0.307 Inches, Attenuation 0.14 to 0.95 dB/ft.. Tags: Flexible. More details for 2801-75 can be seen below.