In TPLINK TLWN722N Wireless N150 High Gain USB Adapter, 150Mbps, 4dBi External Antenna, WPS Button, Support Windows XP/Vista/7/8
Cell phone signal boosters, also called amplifiers or repeaters, work by capturing a weak cell signal outside the home, office, car, boat, warehouse, etc, bring it inside, amplify it, and redistribute it. The most popular products on the market contain four main components: the outside antenna, the amplifier (booster / repeater),the inside antenna, and the cabling to connect everything.
Just about every amplifier (or booster) will have two values that basically define it. The first is “band”. Most amplifiers are classified as single band or dual band. With the exception of iDEN (Nextel), single band refers to either 850 MHz or 1900 MHz, meaning that the amplifier only boosts one of those two frequency ranges. Dual band on the other hand will boost both frequency ranges. While there are certainly reasons for purchasing a signal band booster, dual band boosters are more common and compatible with just about every carrier.
Inside antennas can be directional as well. Wall-mounted panel antennas provide directional coverage in typically a 90-120 degree radiation pattern. While coverage is only provided pretty much in front of a directional antenna they usually offer more gain than a dome antenna. With that being said, panel antennas are great for large but somewhat narrow rooms or hallways. They are also useful if you are not able to fully adhere to the antenna separation requirements. If the indoor directional antenna is pointed away from the outdoor antenna you will most likely be able to get away with a less th
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