RG213 is a military-specification 50Ω coaxial cable offering the lowest loss of the three coax types we stock — at just 0.7 dB per 10m @ 100 MHz, it's the preferred choice for longer antenna feed lines, base station installations, and any run where minimising signal loss is critical. The 98% braid coverage and 9mm diameter construction make it a robust, high-shielding cable built for permanent outdoor and indoor installations.Available in cut lengths from 50cm to 100m. For shorter runs or vehicle installations where flexibility and diameter matter more than ultimate loss performance, see our Mini 8 and RG58 options.Specifications Impedance: 50Ω Diameter: 9mm (9.65mm, military spec) Core: 7 × 0.72mm Braid: 192 × 0.20mm (98% coverage) Loss: 0.7 dB per 10m @ 100 MHz Colour: black Available lengths: 50cm, 1m, 2m, 5m, 10m, 15m, 20m, 50m, 100m