Times Microwave - 1.2" LMR-1200DB Watertight The Times Microwave LMR-1200-DB 7/8 inch coaxial cable has the advantage of being watertight. This 50 Ohm coax cable has an inert polymeric flooding compound in and around the braiding that ensures reliable performance. The transmission line has a taped and TC braided outer conductor with a copper tube center conductor. This standard coax cable meets ASTM D4565 and ANSI S-84-608 requirements. Maximum frequency capacity is 4.7 GHz. The Times Microwave 7/8 inch watertight coaxial cable is available in bulk and is priced per foot.