ITEM NAME:Car AM FM TV radio digital antenna aerial signal AMP amplifier booster A Gw.Radio frequency: 88-108MHZ. output impedance: 75 ohms. output standing wave: less than 3. output line length: 3~5m. gain: UHF22 + 3DB VHF25 + 3DB. storage temperature: -40 C, +80 C. ambient temperature: -35 C, +75 C.