I can’t say if this product works to boost a strong signal which, in all fairness, is what it’s intended to do. ATT suggested I try it as a fix for their weak and spotty coverage in my area. It did nothing. I was able to return it, but was not refunded the $99 Geek Squad “installation” fee, which did not include actually putting the antenna on the roof. (They are not allowed to climb above 10 feet.) For that, I had to pay a contractor. Another fee I will not recover.