The OD Series antennas provide omni-directional coverage for WiFi 2.4 GHz applications. Four models are available from 3-12 dBi gain. These antennas are colinear arrays. Unique phasing cancels out-of- phase current distribution, improving performance. The OD Series are free space antennas; no ground plane is required. Unique options for the OD series are add-on Reflector Kits that beam shape the omni pattern. Reflector options are available to provide cardioid shape in 90 o , 120 o & 180 o patterns. These can result in im - proved directional gain and isolation for reduced interference. The antennas are durable and rugged. They can withstand the harsh - est environments of snow, wind, rain and ice. The feed assembly is made of precision machined aluminum compo - nents and is irridited for weather protection. These antennas come with all the hardware needed to install it to a mast. For ISM, Part 15 compliant connectors are available (reverse polar - ized), please consult your sales representative.