I will invite you to visit us and drive just 8 miles west, then try and use your Verizon with the amp.....ain't gonna work.
Have you tried it with a legitimate antenna and amplifier - designed specifically for the cellular band and operating off 12 volts??
I'm not talking about the El Cheapo stuff made in Ch**a you see in the electronic gizmo sections of big box stores. Here's the kind of real equipment I'm referring to:
http://www.wilsoncellular.us/amps-antennas.htmWe have made connection in the Oregon outback 25 miles for any town (...and even then the nearest town was a one-horse one) and from valleys buried deep within the Kentucky hills.
Our antenna is only mounted up on the RV's roof. Even greater cellular phone/Internet ranges can be obtained if you combine real amplifiers with more sophisticated antenna arrangements different from, and well beyond, our rooftop RV antenna. For instance:
http://www.boxcarcabin.com/psr.htmlIf you want to check out even more from the above website, start here:
http://www.boxcarcabin.com/ruralcell.htm