Profile: Kathrein, Inc., Scala Div. manufactures professional antenna and filter systems for communication & broadcasting sectors. We are ISO 9001 and ISO 14001 certified. Our K732267 log periodic antennas are designed for fixed-station applications. They have high front-to-back ratio without side-lobes, which helps to minimize co-channel and adjacent channel interference problems at sites with congested spectrum. The X-polarized adjustable electrical down-tilt antennas offer the carrier the ability to tailor sites for optimum performance.