WIBOX :: PA DM5-20HV, 5.1-5.8GHz MIMO 2x2 20dBi. WiBOX PA DM5-20HV is a dual polarity (MIMO 2x2) planar antenna operating at the frequency range of 5,1 ? 5,85 GHz with 20 dBi gain in both polarizations. It is desired for Point-to-Point connections and Point-to-Multipoint connections as a client antenna. The antenna is integrated with the top quality WiBOX Extra Large box system (the installation space is 28 x 47 x 6,5 cm).