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A note of Caution:
1-Vehicular repeaters (wireless amplifiers) advertised by the brand names, Wilson, Digital Antenna, Powermax, Cellamericas, Richardson Electronics and several others that are advertised and recommended for use in vehicles and watercraft do not work. None of these devices are capable of delivering 3 watts of power under any conditions and the FCC certificates for these devices clearly show that none of these are rated at 3 watts of power, some do not even have FCC type approvals and are not legal for use in North America. These devices are low power amplifiers and are totally unsuitable for increasing range in remote areas. All of these devices will oscillate when a phone is at full power if the phone is close enough to the internal antenna; if the phone is not close enough to the internal antenna they will do nothing. It is impossible to have a repeater work in a vehicle that is not made almost entirely of steel with all but the tiniest of openings (a tank for example). These devices are useless in vehicles.
At worst, the companies that sell them know this and are counting on fooling the consumer with the fact that the phone will show increased signal bars and at best, they are simple re-sellers who do not know much or anything at all about amplifiers and repeaters and are happy to take the consumer's money.
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