The Model AP5010B Antenna positioner, is a heavy-duty non-conductive support and positioner for the AR RF/Microwave Instrumentation ATR26M6G or ATR26M250 high-gain log-periodic antennas. Includes locking casters, with leveling feet, for easy movement in a shielded room or open site testing, the AP5010B allows the test engineer to position the antenna for either vertical or horizontal polarization as well as permitting the antenna to be tilted 30 degrees. The height adjustment is from 2.07 meters to 3.31 meters, measured from the floor to the centerline of antenna. The base leg adjustment is from 1.53 meters overall to 2.04 meters. The primary structure of the AP5010B is constructed of Fiberglas, PVC, Delrin, and Nylatron and the weight of the unit without an antenna is approximately 45 kg (98 lbs). The AP5010B is equipped with 6” semi-pneumatic swivel casters with brakes. The AP5010BM1 is equipped with 6” pneumatic swivel casters with brakes.