disclaimer: channel reception varies based on what is broadcast in your area・ your distancebroadcast towers・ and any geographical obstructions between you and the towers.<br />operation correctly: at first・ set up according to the manual・ you should make sure you have connected the antenna correctly to hdtv tv with digital box. and then put the antenna to a higher location like on the wall・ better close to the window and no obstacles between your home and towers・ and keep re-scan channels after moving the antenna. sometimes moving a few feet can make big difference<br />description:the appearance of new・ nice・ compact structure. can be easily adsorbed on the glass・ convenient and .frequency range - mhz: 890-960 / 1710-1880gain-dbi: 3voltage standing wave ratio:   1.5nominal impedance -  : 50polarization: verticalmaximum power-w: 5radiation material: copper<br />package included:1 x passive antenna1 x regulatory power supply1 x data lines1 x manual1 x amplifier