Homemade Wi-Fi Dish Antenna

Written by g.w.w
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Homemade Wi-Fi Dish Antenna
Convert a satellite dish into a Wi-Fi antenna. (Satellite TV image by Bryan Crowe from Fotolia.com)

Making your own Wi-Fi dish antenna involves combining an old satellite dish with a USB Wi-Fi adaptor and a USB cable. You reposition the large parabolic surface of the satellite dish from the radio waves of the satellite signal for TV to the 2.4-gigahertz Wi-Fi frequency. The antenna in the USB adaptor gets a signal boost from the dish, so you can take advantage of the Internet for free if you're in range of public access hot spots.

Skill level:
Easy

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Things you need

  • USB Wi-Fi adaptor
  • Satellite dish
  • Screwdriver
  • Pliers (optional)
  • Plastic ties
  • Metal strap (optional)
  • USB cable
  • USB extension cable

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Instructions

  1. 1

    Obtain a USB Wi-Fi adaptor. You can find a wireless G adaptor for about £9; a wireless N adaptors will work faster but cost you more.

  2. 2

    Modify an unused satellite dish. Remove the LNB (low noise block) transceiver unit from the extension arm of the dish, and remove or cut any remaining coaxial cable.

  3. 3

    Attach the USB Wi-Fi adaptor to the extension arm. Point the plastic end of the adaptor (the antenna portion) toward the surface of the satellite dish. Secure the adaptor to the extension arm with plastic ties or a metal strap.

  4. 4

    Connect a female-to-male USB cable to the USB end of the Wi-Fi adaptor. Attach an additional USB cable to extend the cable length. Connect the male end of the USB cable to any standard size open USB port on a desktop computer or laptop.

  5. 5

    Mount the satellite dish on a stand or rooftop. Position the dish in the direction of known Wi-Fi hot spots or public access points.

  6. 6

    Choose the Wi-Fi connection with the strongest signal from the computer desktop. The computer will automatically find the new USB connection. Click "Connect" on the strongest available Wi-Fi connection.

Tips and warnings

  • Wi-Fi connection speeds vary by the speed of the USB adaptor and the number of computers in use simultaneously on a Wi-Fi network.

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