The Scala CA7-460 seven-element yagi is designed for the very highest reliability even under severe environmental conditions. Its broadband design makes it particularly suitable for systems requiring frequency agility within a specified band. This model covers the 450-470 MHz bands. Impedance is 50 ohms, gain is 10 dB (over dipole) and input power rating is 250 watts.Main Features:Internal balun and dipole feedpoint sealed within the boom assembly.Balanced feed system with no capacitors for superior performance in icing conditions.All aluminum components anodized for corrosion resistance.Heavy wall anodized aluminum pipe and tubing.Heavy duty aluminum castings and stainless steel hardware.Entire antenna at DC ground potential.Dual and quad arrays available.