How to receive a wi-fi signal with my satellite lnb

Written by marshal m. rosenthal
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How to receive a wi-fi signal with my satellite lnb
(Thinkstock/Comstock/Getty Images)

The LNB (low noise amplifier) modules found on a satellite dish have no other purpose than to focus and transfer a satellite transmission hitting the parabolic reflector dish. To use a LNB as a Wi-Fi antenna, install a 2.4 GHz element on the front of the LNB. The procedure requires a few components from a hobby shop or electronics store. The Wi-Fi LNB antenna will be able to receive wireless transmissions from a transmitter that is at a great distance.

Skill level:

Things you need

  • Torx screwdriver
  • Newspaper
  • Utility knife
  • Rough sandpaper
  • Pliers
  • Portable drill
  • 2-inch drill bit
  • USB Wi-Fi adaptor
  • Bonding glue
  • USB cable
  • USB extender cable
  • Laptop

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  1. 1

    Unscrew the coax cable connected to the bottom of the LNB. Loosen the screws on the side of the LNB with the Torx screwdriver. Pull the LNB off the support arm that is attached to the front of the satellite dish.

  2. 2

    Place a sheet of newspaper on a table. Place the LNB on the newspaper with the plastic dome facing up. Cut out the plastic dome with the blade of a utility knife. Dispose of the cut out plastic in the trash. Smooth the cut edges of the top of the LNB with the rough sandpaper.

  3. 3

    Pull the components out of the LNB with the jaws of a pliers. Dispose of the components in the trash. Turn the LNB over. Drill a hole through the centre of the LNB with the portable drill.

  4. 4

    Place the tip of the USB Wi-Fi adaptor into the hole. Push the adaptor through the hole until its bottom is almost even with the hole. Apply bonding glue around the adaptor to secure it to the sides of the LNB's bottom. Let the bonding glue set for a day.

  5. 5

    Place the LNB back on the support arm. Rotate the LNB so that the tip of the adaptor faces the dish. Tighten the screws on the side of the LNB with the Torx screwdriver.

  6. 6

    Plug one end of a USB cord into the USB connector. Plug the other end of the USB cord into the USB extender port on the USB extender cable. Plug the other end of the USB extender cable into a USB port on a laptop.

  7. 7

    Loosen the two locking knobs on the side of the satellite dish. Realign the dish so that it is facing in the general direction of a Wi-Fi "hot spot" that is in a store down the street. Lock down the knobs so that the Wi-Fi antenna you have made using the LNB will now be able to pick up Wi-Fi transmissions and transfer them to the laptop.

Tips and warnings

  • The LNB will no longer be able to receive a satellite transmission since the antenna has been mounted inside of it--the entire LNB can be replaced if you want to return to using the satellite dish for satellite transmissions only.

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