"The devices, which cost from $250 to $1,000, depending on how much they increase a signal, work by first capturing cell signals through an external antenna, ideally affixed to the roof of a dwelling. A coaxial cable then transmits the signal inside the house to an amplifier and internal antenna, which strengthen and retransmit it to cellphones. Before, Mr. Kirkland said, he might have had one or two bars indicating signal strength.
“I can walk around my whole home now with full strength reception,” Sean Kirkland said. “I couldn’t be happier.”
But will Mr. Kirkland’s solution remain legal? In March, CTIA-The Wireless Association, which represents cellular service providers, filed a complaint with the Federal Communications Commission demanding stricter regulation of signal boosters. The commission is considering whether to let Mr. Kirkland and an estimated one million other homeowners continue to use them.