"The Telewave ANT450D6-9-4DT series consists of 4-element dipolearray antennas with a precision phasing harness for optimumperformance. The antenna horizontal pattern is fieldadjustable, forany current or future coverage requirements. The wide bandwidth andhigh efficiency of these antennas make them ideal for manyapplications, including trunking, business, public safety,government, and amateur radio. Each dipole element is constructedwith 6061-T6 aluminum, and welded at the base for maximum strength.Each antenna is also completely sealed with our high-tech Txylan™coating, which resists water and ice buildup, and providesexceptional protection from corrosive gases, UV radiation, saltspray, acid rain and windblown abrasives. The phasing harness isfully sealed by Telewave's Millenium Seal™ technology. All components are at DC ground potential for lightning protection. Each dipole element includes a heavy-duty custom clamp set for mounting to a 1.5"-2.5" diameter galvanized steel support pipe or tower leg.