Dr Tech Cell Phone Wireless Signal Booster for Home or Office , 4G 700 MHz , for AT&T , LTE (698-704 728-734) , Single Band

Please visit www.wirelessadvisor.com. Enter your zip code and locate your service provider to find the coverage frequency in your service area. It is important that you find out the coverage frequency
Introducing:
The new Dr. Tech 4G LTE is a high powered amplifier for AT&T's 4G (698-704 728-734) network with a massive 70dB gain. This is the most powerful 4G LTE amplifier available.
Dr. Tech is proud to be the first company in the US offering 4G coverage solution
Product Description:
The Dr. Tech 4G LTE Amplifier is the only amplifier currently available for AT&T's new ultra fast network. With this amplifier, the Dr. Tech 4G LTE Amplifier, you'll be able to boost AT&T 4G signal over your home, office or warehouse. It will cover up to 10,000 sq ft, and will massively increase data download and upload speeds.
How it works:
The outside antenna is placed in the area of best signal, collects it and sends it through a cable to the Dr. Tech 4G LTE Amplifierr. The amplifier boosts the signal and then sends the boosted signal through a cable to the inside antenna. This provides an area of improved signal for phones and 4G data cards. Even though the concept is simple, it is still a little challenge to make a good booster. The cell phone signals are tiny electric waves at very high frequencies. A very low level of noises, which are introduced during the boosting process, can significantly distort the original signals or interfere with the signals at other frequency spectrum. It is also hard to boost signals evenly on the frequency band. Any time lags caused by the process can make the signal useless as well.