RG142B/U 50 Ohm Coaxial Cable, FEP Insulation, Double Silver Plated BraidAvailable in bulk standard or custom cut lengths from 1 1000 ft or terminated to order with Type N, BNC, TNC, SMA, or other RF connector types. Nemal Part Number 1705 is a RG 142B U Mil Spec type 50 Ohm coaxial cable. It features excellent electrical and temperature characteristics due to its teflon dielectric and double silver plated braid shielding, and is suitable for high power RF applications up to 18GHZ