The RG188 from ANOISON Electronics LLC is a RF Cable with Frequency Range DC to 3 GHz, Cut off Frequency 3 GHz, Propagation Velocity 0.7, Cable Diameter 0.105 Inches, Attenuation 7.988 to 46.707 dB/ft. Tags: Flexible, Hand Formable, Semi-rigid. More details for RG188 can be seen below.