THE OFFSET ELLIPTICAL ANTENNA ARE MANUFACTURED BY US ARE ALL MADE FROM DUAL SIDE GALVANIZED STEEL POWDER COATED TO MEET THE MOST RIGOROUS OF WEATHER CONDITIONS FOR CORROSION RESISTANCE. NAVIGATOR STYLE AZIMUTH & FINE ELEVATION ADJUSTMENTS ARE ALSO AVAILABLE IN ELLIPTICAL SHAPE FOR PERFECT USE IN HIGH POWERED SATELLITES. IT IS LIGHT WEIGHT, EASY TO INSTALL & FEATURES A HIGHLY ACCURATE STAMPED SURFACE THAT DELIVERS EXCELLENT GAIN & X-POLE PERFORMANCE.