MPD Digital RF UHF VHF HF coaxial cable SMA male to N female pitail extension adapter Coax RG-58, 20 inches US MADE Ultra Low-loss Double Shielded MILSPEC RG-58u Coaxial Cable exceeding all US, NATO and IDF MIL-C-17 Standards - NOT Made in China Double Shielded 95% Copper Braid Center conductor- NOT Made in China Outer Jacket Material: Flexible UV Proof FR-PVC, Outer Diameter: .195 nom., SRL: per MIL-C-17/74 The MPD Digital Brand is a Trade Mark of Kimberly Distribution LLC. MPD Digital cables are produced and assembled with US made cable meeting MIL-C-17 DoD specifications. We do Not import cheap coax from China or "assemble" them here. Impedance 50 Ohms Frequency Range DC ~ 2 GHz