What are RG71 Coaxial Cables?

RG71 Coaxial Cables are a type of cable that is ideal for long distance signal transmission due to their excellent signal integrity and attenuation characteristics. They are best suited for telecommunications and networking applications.

RG-71/A/B/U

The RG-71/A/B/U is a 93-ohm double-shielded coaxial cable with an overall diameter of 0.245 inches and a voltage rating of up to 750 Vrms. It has an inner copper weld wire (CW) or copper-clad steel (CCS) conductor (carrying the electrical signal), which is enclosed by an insulation layer typically made of air space Polyethylene (ASP). The insulation layer is then completely enclosed by 2 tinned copper (TC) braid shields that form the outer conductor and also provide shielding against electromagnetic interference (EMI). Finally, the structure is covered with an outermost layer - called a jacket - made of Polyethylene (PE-IIIA). The jacket protects the cable core from mechanical, moisture, and chemical issues.

The RG-71/A/B/U cable exhibits capacitance of approximately 14.0 pF/ft (46.05 pF/m), signal attenuation of around 8 dB/100 ft at 400 MHz (signal attenuation of the cable depends on the frequency) and has a velocity of propagation of 84%. It has a center conductor measuring 0.0253 inches (0.64 mm) in diameter and an insulation layer measuring 0.146 inches (3.71 mm) in diameter.

Key Specifications of RG-71/A/B/U Coaxial Cables