That's basically an amplified high-gain directional antenna with an integrated ethernet bridge. It basically converts a wifi signal into a Cat5 ethernet connection.
It provides about a 10 dB gain in signal strength and gives about 60˚ of horizontal coverage, which is usually good enough for most boats at anchor to use—and easily well within the capabilities of covering a boat in a slip.
The advantage of doing this is that there is no signal strength lost due to having a long antenna cable.
It is pretty simple to power it off the boat's DC system, since it operates on 12 VDC. Also, you only need to run a single cable, since the unit uses Power Over Ethernet to power itself.
for $80 or so.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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