The Wilson 314203 NMO mount antenna is a tri-band antenna that is designed to be used with one of our amplifiers and features up to 5.9 db. of gain. The Wilson 314203 antenna is Omni-directional which allows it to receive signal from all directions and it works great on cars, vans and suv's. All Wilson NMO antennas require separate NMO mount (mounting base with cable).