Slashdot Mirror

← Back to Stories (view on slashdot.org)

New Wi-Fi Distance Record Set In Utah

Posted by timothy on from the put-access-points-on-chairlift-poles dept.

cold_sake writes "Wireless guru Rob Flickenger details the known records for Wi-Fi link distances on his latest blog. Included is a new distance record for an un-amplified Wi-Fi link, set by the students of Utah's Weber State University. 82 miles was accomplished with 802.11b."

6 of 321 comments (clear)

  1. huh? by mOoZik · · Score: 2, Insightful

    The link says 72 miles. The slashdot posting says 82. 10 miles is a pretty large error.

    --
    A blog like any other.
    1. Re:huh? by frazzydee · · Score: 3, Insightful

      check the blog- it says that the site originally said 72 miles, but now it says 82. Hope this clears things up. Maybe there was a mistake on the original .edu website which they corrected later?

  2. 1.5W is one heck of an "un-amplified" amplifier by Burdell · · Score: 2, Insightful

    If you read the actual pages, they used 1.5W amplifiers. Their "lessons learned" page says "Unsure of FCC regulations"; more like FCC regulations ignored. FCC regulations for unlicensed use of the 2.4GHz spectrum for communications limit you to 1W ERP; with 1.5W amps and high gain antennas, they were well beyond the FCC regulations. Give me a big enough amp and a good antenna and I can transmit 2.4GHz a lot longer distance, at least until the feds track me down.

  3. Re:I wonder what they tweaked by mindstrm · · Score: 2, Insightful

    how do you determine it was illegally amplified?

    Respectfully.. did you (or they) do the math and show that it violated FCC regulations, or are you just assuming that because there is an amplifier, it's illegal (which would be wrong)

  4. Re:With Distances this great... by drinkypoo · · Score: 4, Insightful
    You need a wireless interface for each user, but you can bring in multiple connections on one piece of fiber. You also need a bigass antenna for each user for whom you are trying to get significant range. Other than that, nothing.

    However you are better off with a series of stations, maybe mesh-networked, maybe not, with both directional and omnidirectional antennas. The directionals will point either at home base or other stations, and the omnis will handle serving individual users.

    Then, the users can have directionals pointed at the omnis. Perhaps you'll only be able to get a five mile range (on average) with a primestar dish on one end and an omni on the other, but you'll be able to get a lot of users connected to one station that way.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  5. Re:The central precepts of Mormanism never mention by Anonymous Coward · · Score: 1, Insightful

    18. The Mormon Temple endowment ceremony is without a doubt taken from the Masonic ceremonies Joseph Smith participated in just weeks before he introduced the temple endowment. The grips, tokens, covenants, secret words, keys, etc. were word for word the same when first introduced. Members who were Masons previous to Joseph joining the fraternal order unashamedly referred to the Mormon endowment as "celestial masonry."

    Bravo! One of the most liberal Mormons I've ever met. Did you know this post could get you in hot water with your Bishop or Stake President?

    You're well on your way. You're almost there. If you have a good reasoning mind you'll be an apostate before you know it. I think you'll find the information on Joseph Smith enlightening. Make sure you do some study on the Book of Abraham too. You'll start to see where the seed of hatred were sewn for the African race.

    No, no, don't bother to find out for yourself, just go around spouting hacknyed half-truths to anyone who will listen.

    HUH? you pretty much confirmed almost everything this poster said. You are ignorant to a number of points that are based on what has been preached by your early church leaders but that will come with time.