The 2806 Series from Insulated Wire is a RF Cable with Frequency Range 0.04 to 18 GHz, Cut off Frequency 18 GHZ, Propagation Velocity 0.83, Cable Diameter 0.380 Inches, Attenuation 0.009 to 0.200 dB/ft.. Tags: Flexible. More details for 2806 Series can be seen below.