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Marine Two Way Radios: 5 Fast Facts

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Fact #1. It's hard to imagine a world in which communication across water couldn't happen along radio waves. Before radio communication, boats had to be able to see one another to communicate. If a ship were more than three or four miles away, it would largely dip below the horizon to the curvature of the earth. This made communication impossible.
Fact #2. Ships employed everything from flags to semaphore to relay messages before radio. Morse Code delivered through flashes of powerful lanterns became a common practice. This was mainly used at night when the colors and images on flags would have been hard to distinguish.
Fact #3. The biggest dividing line between two large camps of marine two-way radios cuts along the variable of portability. You essentially have the choice between a handheld unit and fixed-mount design. Both can be life-savers in times of emergency. However, there are features that make one better-suited for certain situations.
Fact #4. Handheld radios are preferred for their portability. These look and feel like walkie-talkies. You can carry them with you anywhere on the boat. Many designs are both waterproof and buoyant, as well. If you drop it overboard you can retrieve it and it should still function. They have a somewhat limited range, however. If you only take your vessel out a short distance from land, this might suit you fine.
Fact #5. Fixed-mount radios are popular among boaters who venture farther out to sea. They can get up to 25 watts of power. That makes these models ideal if you need weather information, or to contact emergency services, from a considerable distance. Because they're mounted, they can't come with you around the boat. They can draw power from the boat's battery, so you never have to worry about charging them.
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Hardware
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