S46191 is a 50 Ohm coaxial cable and the industry’s workhorse, with decades of proven performance in the aerospace and defense markets. S46191 is dimensionally equivalent to M17/128-RG400, but will provide at least 40% weight savings over RG400 and save approximately 8 dB per 100 feet at 1.0 GHz compared to the standard RG400 coax cable.