<p><b>Chaowei AMP1801 TV Signal Amplifier Booster</b></p><p><b>HDTV Antenna amplifier</b> is a perfect accessory to boost signal for your current antenna.Boost any <b>non-amplified digital tv antenna</b> up to 50 miles range,and enhance weak and moderate signals by obstructions between you and transmitters</p><p><b>Product Spec:</b></p><ul><li>Frequency Range: VHL(40-240MHz);UHF(47-862MHz)</li></ul><ul><li>Max Gain: 25dB</li></ul><ul><li>2.9ft (1M) Coaxial Cable</li></ul><ul><li>Power Supply:DC 5V 100mA by external adapter or DC 5V from USB source</li></ul><ul><li>Works with any non-amplified indoor tv antennas</li></ul><p><b>Please Note :</b></p><p>1,Chaowei unique amplifier has two ends, one is for USB power, the other is connect with your tv.</p><p>2.Work together with any kind of non-amplified tv aerial,then the non-amplified digital aerial(Ext.DVB66/DTA66/DVB218 Digital TV Antenna) will outperform a 50 mile amplified hdtv antenna by leaps and bounds;BUT can't work with antennas which already has a builtin amplifier.</p><p>2,We DO NOT recommend to use this amplifier/booster if your house is very close to the transmitters and where the signals are already very strong,reception can be impeded by strong signals"overload" since the amplifier will boost the strong signals too.</p><p>3,This signal booster CAN amplify the range by 15 miles away and boost the weak signals for an unamplified indoor/outdoor antenna,but CAN'T create new signals.</p><p>4, If this AMP unit doesn't work,pls kindly check if the LED light is up when power on.</p><p>5,We DO offer a 45-day money back guarantee in case of this booster doesn't help. </p><p><b>How To Connect With a Passive Antenna?</b></p><p>1,Screw the amplifier/booster into the F type cable of the non-amplified antenna;</p><p>2,Connect the F type cable of the amplifier to the "ANT IN" of HDTVs or Digital STB;</p><p>3,Plug USB cable into HDTVs' USB port or YOUR OWN power adaptor/wall charger</p>