AD-18/E is an omni-directional, vertically polarized V/UHF antenna for ground-to-air and ground-to-ground mobile communications in the 225 to 512 MHz range.
AD-18/E is a wideband dipole mobile antenna with frequency range from 225 to 512 MHz, mainly intended for use in heavy duty mobile communications applications.
The antenna is composed of a radiator and base. The radiator is made of 43 mm diameter fiberglass whip with special radiating elements securely placed inside. Electrically the antenna is designed as center-fed dipole antenna, thus the electrical characteristics are independent from the ground or mounting place.
The antenna base has four mounting holes equally spaced on a 4.5" (114.3 mm) circle which complies with NATO standard and can include an optional AD-79/18D GPS antenna. A stainless steel biconical spring absorbs the shocks and the vibrations, in addition protects the antenna against impacts.
AD-18/E has NSN 5985-42-000-0120
The antenna can be mounted on a mast using the ATP-1827/03 mast mount.