AD-18/D-3512 is an ultra wideband mobile VHF/UHF monopole antenna with frequency range of 25 to 512 MHz at up to 400 W CW for use in heavy duty mobile applications.
The AD-18/D wideband antenna is composed of three main parts: antenna base, lower and upper radiating sections made of composite materials for outstanding strength and toughness.
This omni-directional monopole wideband antenna covers 25 to 512 MHz frequencies at 100 W CW power handling. A higher power CREW antenna version is linked below, as well as a dual feed 30-88 & 225-512 MHz version.
The base is made of aluminum and durable plastic materials, with matching circuitry inside and (optional) AD-79/18D GPS antenna. A stainless steel spring absorbs shocks and vibrations, while protecting the antenna against impacts. Four mounting holes are equally spaced on a 4.5" (114.3 mm) circle, complying with the USA and NATO standard.