Boost your cellphone signal with your car The Wireless In-Vehicle amplifier boosts (or so they say) your cell phone's signal by 10x, giving you a lot of more range before your signal goes dead. I wonder if something like this could be built in automobiles standard so that all of those vehicles could acts as boosters.

It works with most current carrier protocols (Analog/AMPS, CDMA, TDMA & GSM) at 800 & 1900 MHz and is compatible with Bluetooth technology. It provides gain in both the transmit & receive paths. No special programming is required as the unit automatically recognizes the carrier's protocol. The wireless in-vehicle amplifier has automatic gain control of both the uplink & downlink paths to prevent any external oscillation due to antenna installation variations.

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