... .190Mhz Application:Aircraft Radio Control.eg,Helicopter,Plane,Car,Boat,Tank Radio Control Models Crystal FM72.190Mhz (1)Aeromodeling crystals: mainly ... , 41MHz, 50MHz, 60MHz, 72MHz and 75MHz;(5)Different brands of R / C, such as: FUTABA, JR, SANWA, KO propo, Hi-Tec, GWS ...