... TV antenna indoor aerial 25DB boost amplify Car digital TV antenna, indoor HDTV ... tuner aerial, 25DB booster active amplifier, power supply inside 5V from tunerDigital TV antenna built-in amplifierReceiving Frequency Range: VHF ... -H 170 ~ 230MHZ,UHF 470 ~ 860MHZ, V.S.W.R: < 3Power Gain: > 28dBm25db Car digital TV antenna indoor ...