How to get Wi-Fi at a distance of 20 km?

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There is the problem — in the country to organize the Internet. 3G does not actually, EDGE is not stable and slow.
The distance from home to cottages — 20 km. Between them is mostly forest.
Available:
Access point Asus WL-500Gpv2
Two signal amplifier Wi-Fi 2 watt.
What else is needed to speed was at least 2-5 megabits?
Who has tried to arrange pick Wi-Fi over long distances?
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7 Answers

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In the presence of direct visibility (such trees are not) and a pair of directional antennas more powerful, can achieve a connection over WI-FI. But comfortable to work will not work: wind, rain, fog, birds, even some unknown crap, always will be cliffs. Exceptional IMHO, I further kilometer Vivi not stretched.
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Unlikely to help, but here is a small presentation as passed wi-fi on 300 kilometers
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For such distances the "home equipment" is not suitable.
If indeed there is such a need, look in the direction of industrial Wi-Fi equipment, for example UBIQUITI
\rLink to the Yandex trademark UBIQUITI equipment.
\r
\rPLUS a couple of good long poles for installation of antennas, to attempt to retrieve the line of sight.
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I do not know how in Russia, but in Ukraine, for the external WIFI access points have to pay a lot of money to Castelnaudary... I would put a plate with the recoil on EDGE.
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> 3G does not actually
I don't know about Wi-Fi, but this article explains how to catch a weak 3G signal (no drop) wire, pots and cans of coffee.
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What if the night 20km 1000BASE-LH under the ground to dig? You can run through 5 km =)
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Wi-Fi vdannom case is a little inappropriate, it is better to use something in the spirit of the BBA! Personally I have works fine it's a miracle http://www.nporapira.ru/ the distance between point-to-point 14800метров, but this is not the limit. Signal is stable and lost only once and that is because the light was turned off.
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