The RAMI AVT-4 is a broad-band VHF communications antenna. It incorporates a low drag blade housing design for high strength and a radiating element encapsulated in rigid polyurethane foam. The housing is finished with a Skydrol resistant white polyurethane paint and comes with mounting hardware and neoprene mounting pad. The antenna is designed to operate at speeds up to 350 mph and altitudes of 50,000 ft. It has a drag force of 0.85 lb. @ 250 mph. Product Specifications: Model    AV-T Application    Airborne Communications Frequency    118 – 137 MHz Impedance    50 Ohms Nominal VSWR    3.0:1 Maximum Polarization    Vertical Pattern    Omni-Directional Connector    “BNC” Female Max Height    13″ RF Power Capacity    30 Watts FAA TSO    C37d, C38d