The RAMI AV-14 is similar to the AV-10 using the same 4-bolt mounting base except it has a shorter radiating whip element. The antenna is designed to operate in the Public Service and Business Bands 138-174 MHz. The antenna is designed to operate at speeds up to 350 mph and altitudes up to 50,000 ft. It has a drag force of 2.70 lb @ 250 mph. This antenna is a direct replacement for the CI 177-1. Product Specifications: Model    AV-10 Application    Airborne Communications Frequency    138 – 174 MHz Impedance    50 Ohms Nominal VSWR    2.0:1 Maximum Polarization    Vertical Pattern    Omni-Directional Connector    “BNC” Female Max Height    17″ RF Power Capacity    25 Watts FAA TSO    C37d, C38d