The Kathrein Scala Division CL-FM/VRM is a ruggedly built log-periodic antenna, designed for professional FM receive applications.Like all Kathrein Scala Division antennas, the CL-FM/VRM is made of the finest materials using state of the art electrical and mechanical designs, resulting in superior performance and long service life.The CL-FMVRM may be used stand-alone or in stacked arrays for higher gain, increased side-lobe suppression, or custom azimuth patterns. 50 ohm N connector Vertical polarization rear-mount Frequency Range 88-108 MHz (broadband)Vertically polarized antennas require lateral stabilization (not supplied) to prevent the antenna from turning on the mounting pipe.Specifications:Frequency range: 88108 MHz (broadband)Gain: 7 dBdPower gain: 5.01Impedance: 50 or 75 ohmsVSWR: <1.5:1Polarization: Horizontal or verticalFront-to-back ratio: >25 dBMaximum input power:250 watts, type N 75 ohm connector500 watts, type N 50 ohm connectorH-plane beamwidth: 78 degrees (half-power)E-plane beamwidth: 52 degrees (half-power)Connector: N female (50 or 75 ohms)Weight: 45 lb (20.4 kg)Dimensions: 104 x 67.9 inches (2642 x 1725 mm)Wind load at 100 mph (161 kph) Front: 138 lbf (614 N)Wind survival rating*: 120 mph (193 kph)Shipping dimensions: 116 x 14.5 x 6 inches (2946 x 369 x 153 mm)