DESIGN AND DEVELOPMENT OF IMPROVED WATERTIGHT COAXIAL CABLE
Abstract
The results of attenuation, VSWR, watertightness, stability, pliability and other tests on 33 various sample constructions show that RG-214/ U, RG-217/U and RG-218/U can be redesigned to be watertight at 1000 psi and have less attenuation, better attenuation stability, be more pliable, and have better abrasion resistance than the standard designed cable. The new designs would still be compatible with the connectors presently used on the standard cables. The size of the cable can also be decreased, if desired, but then the connector would require redesign. The results presented show the technique used to manufacture the braid watertight is good for pressures greater than 2500 psi. The attenuation on all RG coaxial cable can be decreased by an improved braid design. RG-214/U, which is considered one of the better designed RG cable, has better than 20% less attenuation from 10 mc to 10 gc with the improved braid design. The pliability of a cable depends almost completely upon its jacket stiffness. Pliability results are presented that show polyurethane jacketed cables are vastly more pliable at 80 F, 0 F and -40 F than polyvinylchloride or polyethylene jacketed cables. The program for the next interval is presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1962
- Accession Number
- AD0406179