The DPV-50B antenna consists of three vertically polarized omnidirectional dipole antenna elements. The center dipole covers the frequency range 225 to 400 MHz and the upper and lower dipoles cover the frequency range 100 to 156 MHz. The dipole elements are mounted one above the other on a common axis. This dipole is sealed in a single fiberglass radome that provides both mechanical stability and environmental protection. The antenna is designed for ground-to-air communications and use in an extreme environment. It is provided with a coaxial mounting arrangement to mount atop a 2-1/2 inch IPS pipe, enclosing the electrical connections away from the environment.