The BSU type antenna is a 2dBi gain discreet ruggedized product and is suitable for temporary field use or permanent installation. The antenna has a black plated brass center hub, which is mounted on a nylon stub mast and is supplied with mounting hardware. The hub has an N socket terminal which allows use of different types and diameter coaxial cable, depending on cable length required. The plastic coated ¼ wave radiating element is fitted to the center of the hub and three helical elements provide the ground plane. Typical applications for this antenna are: for use on mobile pump up mast, fixed radio terminal (FRT) and mobile/fixed repeater installations.