Using an Antenna with a Wi-Fi Card
Connecting an antenna to a Wi-Fi card (or USB Wi-Fi device) requires a way to connect an external antenna to the card. If there is any kind of external connection at all for an antenna on the card, you can probably find a way to connect almost any antenna, although it may require a special adapter, sometimes called a radio pigtail. You can find lists of pigtails to fit most Wi-Fi cards (and buy them) at www.wifi-plus.shoppingcartsplus.com/page/page/557856.htm, or www.hyperlinktech.com/web/cable_radio_pigtails_list.php, or www.jefatech.com/category/cable_assemblies/.
Some cards come with sockets that will fit most antennas without any special adapter. For example, Figure 17.5 shows the D-Link DWL-520 card installed ...
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