HG913Y-NF by Hyperlink 900 MHz 13 dBi Yagi Antenna N Female Connector 13 dBi gain & all weather, heavy duty steel construction provides superior performance Heavy-duty 1/2" stainless steel boom Solid Stainless Steel 1/8" elements & 18 inch coax lead Can be installed for either vertical or horizontal polarization 1/8" thick plated steel mounting plate The HyperGain