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Call for Help is A daily hour designed to help people gain control of technology. We cover computing and the wide array of new personal technology devices like mobile phones, digital cameras, MP3 players, home theatre, DV camcorders, and on and on. If it's got a chip in it, we'll cover it.

Long Lived Tech TV

New World Record for Wi-Fi Distance: 125 Miles

http://www.wifi-toys.com/wi-fi.php?a=articles&id=91

Posted by Mike on Saturday, July 30th, 2005 @ 09:35 pm [News] My pal Frank Keeney tells me that the world record holders for the longest distance for an unamplified Wi-Fi link (55.1 miles at 30mw) blasted through their own year old record today at the Defcon Wi-Fi Shootout. Team PAD shot their signal a distance of 125 miles from outside Las Vegas, Nevada to a location near St. George, Utah, winning them a new record in the "unamplified" category at the shootout. This possibly qualifies them for a new Guiness record as well.

Frank is the founder of wlanparts.com that provided the Wi-Fi gear to Team PAD. He tells me they used the Z-Com 325hp+ PCMCIA cards running at a built-in power of 300 mw on each end of the link. The cards were connected to one 12 foot and one 10 foot diameter satellite dish (see photo) on each side of the link. The computers they used were running Linux. And their link quality was so fantastic that they got 12 ms ping times, ran ssh shell commands, and even used vnc remote desktop.

He also said that Team PAD may use the same gear to attempt smashing our old Bluetooth record of 1.08 miles.

Update: Typo correction, the cards used this year are Z-Com 300 mw (three hundred milliwatt) PCMCIA cards with external antenna connections (not VCom). To clarify, last year, the team used Orinoco 30 mw (thirty milliwatt) USB adapters.