Steerable 802.11 Cantenna

    Date29 Aug 2006
    Posted ByBrittany Day
    I love projects that start off with a definite need The antenna (standard issue Chili can antenna) is controlled by a PIC microcontroller connected to servos on the pan and tilt axis. This gives about 180 degrees of motion in both planes. The RF pigtail from the antenna is plugged into the 802.11 PCMCIA card in the computer which runs a Visual Basic program. This computer sends the PIC microcontroller the antenna coordinates to point to and measures the received signal strength off the 802.11 card. Hence the antenna is instructed to scan the environment, the PCMCIA card records signal strength readings and the computer builds up an RF map. At the end of the scan the computer searches the compiled matrix for the strongest signal and the antenna is instructed to point there. See
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