antena for wi-fi reception

mikeyny Posted By mikeyny, Feb 23, 2009 at 10:02 PM

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  1. mikeyny

    mikeyny
    Feeling the Heat

    Nov 16, 2007
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    I was wondering if it is possible to build an antena to capture a wireless signal that is broadcast for public use from a distance. Surely someone must have figured this out by now.
     
  2. Highbeam

    Highbeam
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    They are so friggin cheap to buy. Why waste your time? Seriously, search for a wineguard of the proper size and it should be under 100$.
     
  3. Corey

    Corey
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    Nov 19, 2005
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    google cantenna.

    In summary, Pringles can + BNC connector or even USB dongle = high gain directional wifi antenna.
     
  4. SlyFerret

    SlyFerret
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    Feb 12, 2007
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    I still worry that the SWR on a cantenna would be too high. You risk damaging the transmitter on your wifi radio.

    I'd prefer to use a commercially available antenna if I could afford it.

    -SF
     
  5. reaperman

    reaperman
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    USB antennas are available these days for under $30 that will pick up wifi signals great distances away, check with online retailers like newegg or buy.com, etc.
     
  6. SlyFerret

    SlyFerret
    Minister of Fire

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    Keep in mind, it's not just an antenna that connects to the USB port. It's a complete USB network card.

    -SF
     
  7. mikeyny

    mikeyny
    Feeling the Heat

    Nov 16, 2007
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    Thanks for the replies folks. I think I will just bite the bullet and buy one off the shelf. Especially if a homebrew one will do any damage to my system.
     
  8. SlyFerret

    SlyFerret
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    Feb 12, 2007
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    I can't guarantee that a home brew antenna would damage your equipment, but without the proper equipment to test the antenna to know for sure, I wouldn't trust it.

    -SF
     
  9. John_M

    John_M
    Minister of Fire

    Dec 10, 2008
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    Mike, I live in the Richfield Springs/Cooperstown area and my closest stations are Utica (45 miles) and Albany/Schenectady (75 miles). I had to purchase the best? Winegard off the air (OTA) antenna (about 15' long) and mount it with a rotator on a 25' tall abandoned power pole about 200' from my house. Installed a preamplifier on the antenna, used the best digital RG6 cable, ran it underground through plastic conduit and connected it to a distribution amplifier in my basement.

    I added the digital/analog converter box about 3 months ago. The whole project was a lot of work and cost about $800 but the perfect picture I am now receiving easily makes it all worthwhile. Good luck. John_M
     
  10. firefighterjake

    firefighterjake
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    I'm a little confused . . . are we talking about wireless internet . . . or high definition TV?
     
  11. Czech

    Czech
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    radiolabs.com Great site, great support.
     
  12. John_M

    John_M
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    firefighter, you raise a valid point. I was and still am assuming mikey wants to receive a strong OTA television signal. Heck, now I am confused too. Shows what I know!
     
  13. SlyFerret

    SlyFerret
    Minister of Fire

    Feb 12, 2007
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    There are two threads... This one is about public WiFi (or at least that's how I interpreted the question). The other one is about digital TV.

    -SF
     
  14. velvetfoot

    velvetfoot
    Minister of Fire

    Dec 5, 2005
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    Where in upstate ny are there wireless signals that are broadcast for public use from a distance?
    On a perhaps related note, I can't get cable where I live but it turns out I'm near a Sprint tower and have great wireless internet access now.
     
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