The model we installed actually detected the presence of a feedback loop at the amplifier and gave you a red or green light. The instructions also clearly state that the outdoor antenna and indoor antenna need to be at least 40 ft apart and have some sort of solid surface (concrete, brick, steel) between the antennas.
Recently the company I work for built two beautiful new office buildings with one minor drawback; They had large metal roofs that almost completely blocked cell phone signal inside. Many employees had to go outside the building to use their (company owned) cell phones. Our solution was to purchase a wireless repeater like you mentioned above. We went with the Digital Antenna(r) DA4000SBR. This is the small building repeater, they also have other versions available that cover less square footage. It was very easy to set up (mount and outdoor and indoor antenna) and improved signal quality from -85db to -62db (1 bar to 4 bars)over about 3500 sq.ft. Our employees are very happy now that they can use their cell phones inside. This unit can be purchased for around $455 from Talley Communications corp or almost any other wireless retailer.
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The model we installed actually detected the presence of a feedback loop at the amplifier and gave you a red or green light. The instructions also clearly state that the outdoor antenna and indoor antenna need to be at least 40 ft apart and have some sort of solid surface (concrete, brick, steel) between the antennas.
Recently the company I work for built two beautiful new office buildings with one minor drawback; They had large metal roofs that almost completely blocked cell phone signal inside. Many employees had to go outside the building to use their (company owned) cell phones. Our solution was to purchase a wireless repeater like you mentioned above. We went with the Digital Antenna(r) DA4000SBR. This is the small building repeater, they also have other versions available that cover less square footage. It was very easy to set up (mount and outdoor and indoor antenna) and improved signal quality from -85db to -62db (1 bar to 4 bars)over about 3500 sq.ft. Our employees are very happy now that they can use their cell phones inside. This unit can be purchased for around $455 from Talley Communications corp or almost any other wireless retailer.