The RG303 from ANOISON Electronics LLC is a RF Cable with Frequency Range DC to 12.4 GHz, Cut off Frequency 12.4 GHz, Propagation Velocity 0.66, Cable Diameter 0.17 Inches, Attenuation 3.99 to 54.12 dB/ft. Tags: Flexible, Hand Formable, Semi-rigid. More details for RG303 can be seen below.