SCALA~900MHz 12dbi Yagi/7e KATHREIN broadband yagi antenna is specifically designed for professional fixed station applications in the 890 - 960 MHz frequency range. This 7-element yagi antenna has a gain of 12.15 dBi and a maximum power input of 100 watts The polarization can be either horizontal or vertical. Mounting For masts of 1.25 to 2.375 inch OD included. Order mounting hardware for mast of 1.25 to 2.375 inch OD separately. This broadband antenna will assure long service life in severe environmental conditions. The antenna is RoHS compliant.