The antenna AD-27/DB-3512 is dual-band monopole/dipole mobile antenna intended for use in heavy-duty mobile applications.

The antenna is covering a frequency range from 30MHz to 108MHz and from 225MHz to 512MHz.

Due to antenna design, the minimum ground for operation is 0.4 x 0.4m on VHF, on UHF no ground is needed.

The antenna is composed of two main parts: an antenna base and radiating element. The antenna base is made of aluminium and durable plastic materials. Stainless-steel spring absorbs the shocks and the vibrations, in addition, protects the antenna against impacts. The antenna base has built-in surge protection. The radiating element is made of composite materials that enable outstanding strength and roughness even in the hardest conditions of use.

The antenna base has four mounting holes equally spaced on a 4.5in (114.3 mm) circle, which complies with Nato standard. The antenna radiator is painted with military green (RAL-6014) two-component UV-resistant paint. Other colours are available on request.