... with built in RF amplifier for digital TV (DVB-T, DMB-T, SDB-T, and ATSC) Active antenna with built in RF amplifier ... for digital TV (DVB-T, DMB-T, SDB-T, and ATSC)Impedance: 75 ohms typ.Receiving frequency range ... , SMA plug, and MCX plug (optional)Dimensions: 20.7 x 178 x 10.6mmPatent China Car Active antenna with built in ...