NO ONE and I mean no one reputable will assure you this will. You have to try it and see if it reaches.
As to the antenna. Again, you have to test it out.
i want to bridge about 600 ft from my home to my barn. i have been told to use a kit that has two antennas and hook up with poe cat 5 . if i have a router with wifi why do i need a antenna on the house ? couldn`t i just use a direct antenna on the barn pointing at the house and pick up the signal like a cell phone ??

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