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Message: [QUOTE="Paul, post: 14241653"] Purchase an antenna locally. Look for something with relatively solid construction. The thing is, for 2.4GHz operation, the antenna requirements are not as difficult to meet as for a TV antenna (which is a broadband device working on more than one band). If you look at the Yagi antennas for Wifi, the element length and spacing seems to be almost the same for all elements. Even if the manufacturer cannot saw the elements off to the correct length, the antenna will still have tremendous gain. If it says 30dBi, you're likely to get at least 15dBi from it, even if it is built by purely incompetent people. The only thing to watch for, is "Pringles Can antenna" or Cantenna. It is possible to make those work, but some of the plans on the Internet for those, have wrong dimensions. Antenna designers on the Internet, use programs like 4NEC2 to verify antenna designs, and predict performance. I don't think 4NEC2 would necessarily be the best program for verifying the dimensions on a Cantenna, but you need to find a design which has been verified by an expert, before wasting time on such a thing. Even the BestBuy has Wifi antennas, well hidden on their web page. That's a 24dBi TP-Link antenna. The connector on the end won't be the one needed, and tracking down an adapter cable solution will also be a chore. [URL]http://www.bestbuy.ca/en-CA/product/tp-link-tp-link-grid-parabolic-antenna-tl-ant2424b-tl-ant2424b/10219157.aspx[/URL] [URL]http://www.tp-link.com/en/products/details/?model=TL-ANT2424B[/URL] Dimension 1000mm x 600mm (39.37 inch wide, 23.6 inch high) Beamwidth 10 degrees one axis, 14 degrees other axis If you are sitting in a small room, this will take up major space. But it is a powerful antenna. And the lobe should point out the front of the antenna (no gain on the back side). HTH, Paul [/QUOTE]

Verification