The 02633FQ is a 2.15dBi gain, roof mount flexible antenna covering the 380-390MHz of the UHF Commercial Mobile Radio Bands. The 02633FQ antenna offers a genuine 2.15dBi* of gain on the horizon across the whole designated band of operation when installed on a Ground Plane. It is designed for optimum performance on the 02740 mobile base and covers the entire respective designated bands of operation under 1.5:1 VSWR.