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Title: Amazing Signal Increase - Follow installation instructions.
Review: Purchased this item form another vendor. Installed outside antenna on my metal roof following instructions in manual. Used a wooden pole to get the antenna away from the metal roof (one of the stipulations in the manual). Installed where I showed 4 bars of service from AT&T. Ran cable into central location in house and installed internal unit on a shelf. Turned unit on and allowed to complete start up. Cell phone service in house prior to installation zero to 1 bar service at best. Shut down cell phone and turned back on per instructions. Cell phone has full service 4 to 5 bars. AMAZING product. Does what is says it will do. House is approximately 2300 sq ft and cell phone service is at least 2 bars in the entire house.
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