Product: Chaowei High Gain TV Antenna Amplifier Signal Booster for HD TV Antenna with USB Power Supply, Boost Any Passive Antenna up to 50 Miles Range Gain 25dB
Brand: Chaowei
Color: Black
Chaowei AMP1801 TV Signal Amplifier BoosterHDTV Antenna amplifier is a perfect accessory to boost signal for your current antenna.Boost any non-amplified digital tv antenna up to 50 miles range,and enhance weak and moderate signals by obstructions between you and transmittersProduct Spec:Frequency Range: VHL(40-240MHz);UHF(47-862MHz)Max Gain: 25dB2.9ft (1M) Coaxial CablePower Supply:DC 5V 100mA by external adapter or DC 5V from USB sourceWorks with any non-amplified indoor tv antennasPlease Note :1,Chaowei unique amplifier has two ends, one is for USB power, the other is connect with your tv.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.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.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.4, If this AMP unit doesn't work,pls kindly check if the LED light is up when power on.5,We DO offer a 45-day money back guarantee in case of this booster doesn't help. How To Connect With a Passive Antenna?1,Screw the amplifier/booster into the F type cable of the non-amplified antenna;2,Connect the F type cable of the amplifier to the "ANT IN" of HDTVs or Digital STB;3,Plug USB cable into HDTVs' USB port or YOUR OWN power adaptor/wall charger
Before buying an amplifier, pls check the signal strength and the distance to the tower in your area to determine if you need to add an amplifier to improve the reception
Add an amplifier to improve reception if: 1) You have a passive antenna; 2) Have obstacles between antenna and stations; 3) You TV indicates "weak" or "no signals" after running a channel scan
DO NOT recommend to use this signal amplifier if you're near a station's broadcast tower and the signals are already strong, otherwise, the USB Amplifier may cause self-oscillate and you may get fewer channels than without it
DO NOT recommend to use AMP unit for an already amplified antenna
Note: Channels reception will vary depending on your surroundings and how far away you are from broadcast towers as well as the spot where you put your antenna

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