Internet access onboard is increasingly popular but achieving a reliable wireless connection can be difficult in a marina or on the water. A laptop with a built-in Wi-Fi system is a common starting point, but marinas can be a difficult place for low-power, high-frequency radio signals. Practical Sailor tested 5MileWi-Fi, a system that utilizes an external antenna to extend the Wi-Fi range beyond that of normal Wifi devices.

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