The 1085-117 from Sothwest Antenna is a 2 section collinear omni-directional antenna that operates from 2.2 to 2.5 GHz. It delivers a gain of up to 4 dBi and can handle a power of up to 50 watts. This vertically polarized antenna measures 12 x 0.812 inches and is available with a RP-TNC (m) connector. It has a heavy duty spring base that measures 0.75 x 0.75 inches.