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15-Mile Wi-Fi Shot At 4 Mbps Up and Down
DarnComputers writes "5G Wireless (FGWC) announced that it has documented a long distance Wi-Fi shot of 15 miles at a throughput of 4Mbps upload and download speed. The shot was completed this last weekend, in a competitive Wi-Fi shootout at the Defcon convention in Las Vegas, Nev. There were many participants with both commercial-grade and homemade entries in a variety of categories at Defcon's first annual Wi-Fi shootout.http://home.earthlink.net/~wifi-shootout/"
I thought English measurements are banned on Slashdot now?
This story was posted last summer. Check the dates on the linked page...
Kindness is the language which the deaf can hear and the blind can see. - Mark Twain
In my house, I'm able to shoot 54Mbps across 15ft of WiFi.
It's not too shabby, and I don't get delayed on the 11Mbps Internet connection like I did before by my 10Mbps LAN card.
I have been pwned because my
I guess this means Taco can get high speed internet access out in the boonies after all. (see earlier story)
Cemil.
The hyperlink pointing to the Earthlink page isn't working. This may be an attempt to save Earthlink's servers from a serious slashdotting, I suppose.
I have been a user for about 10 years. This ends Feb 2014. The site's been ruined. I'm off. Dice, FU
It doesn't say anywhere what chipset they used for this shootout...
Although 35 miles with 802.11 is pretty damn good, IMO - scroll to the bottom and have a look at the monster antenna they used.
SCREW THE ADS! http://adblock.mozdev.org/ Proud user of teh Fox of Fire - Registered Linux User #289618
Defcon is usually end of summer kinda things... the 2004 Defcon is posted for July 30th - 4th Aug 2004.
./
I remember looking at this story a while back - and the same page was linked. might be worth looking back on
That's a good shot, but I have done 10.1, 22.65 and 19.3 mile links, with 99.9% uptime. I used Breezecom DS.11 radios and 24 DBi andrew/conifer antennas to accomplish it. The worst signal strength was -68 to -72 dbm on the 19 mile shot.
It's not something that all that uncommon.
What 16db means in terms of wireless use is than instead of picking up 4 access points from a rooftop using Netstumbler, I saw 40 different access points, including the BAWRN public node over eight miles away (with clear line of sight but an enormous amount of clutter in the fresnel zone).
I used this design from Seattlewireless.net
I strongly recommended trying this as a project. It's easy and pretty cool.
--Pat / zippy@cs.brandeis.edu
For those who dont want to copy and paste, here is a link
http://home.earthlink.net/~wifi-shootout/
found here
It's just too bad they didn't have Peter North set up the WiFi access points...
The link is so blazing fast that it actually slows down time, like Superman in the movie. That's why we all feel like Defcon was months ago. It was really last week.
In related news, the shuttle was traveling at 18x the speed of light when it broke up... Really, cnn said so here, and everyone knows cnn is the epitome of clueful.
ehintz
No matter what, at least it has to be more legal than the 'key-down showdown' stuff that used to be popular on the CB radios. I saw a guy with a suburban that had like 6 alternators on some custom bracketry, the entire rear cargo area full of batteries, and two large coil antennas on the roof. He claimed that he had a different length of coax on one antenna so that by the time the signal from the rear antenna 'slammed into' (his words) the front antenna would start transmitting and it helped his performance. They usually sit people many miles away and whomever can be heard the loudest wins. Everyone transmits at once I guess. Craziness.
Anyway i'm just wondering what the limits are for dB gain on a certain power level to keep within the legal limits. I have an Andrew 24dB gain dish for 2.4GHz and I wonder if I hooked it to my Lucent card if it would be a legal power level.
wait dont u mean Kibimetres ????
100mW EIRP is the maximum.
Government of the people, by corporate executives, for corporate profits.
Only spatial ones apparently - temporal measurements can still be completely screwy, or maybe it's just that the error-bars on the measurement were +/- 6 months....
Simon
Physicists get Hadrons!
Here is a website for homebrew/amateur radio related wireless experimenting. It covers the construction of homebrew amplifiers, antennas, receiving converters, etc. They also have path analysis and line-of-sight analysis CGI utilities.
Green Bay Professional Packet Radio
Now that's what I CALL an antenna... I wonder how big the pringles are that come in one of those babys
:-)
I've never shoed a horse, but I once told a donkey to piss off!
The metric system was the invention of the French. I'd quite happily revert back to the good old imperial system, if I had the choice
Fortunately, I was at school when Metric was introduced, so, I can convert between the two without using many brain cycles
I've never shoed a horse, but I once told a donkey to piss off!
I spend all day in the office looking busy buy twiddling with my linksys antennas promising the boss a better signal. But now all I have to do is buy a load of metal pipes and some duct tape?
get crazy with the cheese wizz
I remember when one had to was 32 miles to get to the library to look up information - uphill! Both ways! Now I have just to turn on my laptop with a frickin' huge antenna and look up information.
Hrmmm, I wonder why we have such obesity issues. Got to admit, this would be fun with a Humvee downtown NY.
But competing in the DefCon Wi-Fi Shootout was much different than setting up an antenna in your back yard, or on top of a friend's house.
... ok ...
To get better line-of-sight, many contestants decided to hike up a mountain with all of their gear.
There you go. After all, it wasn't that much of a difference from putting an antenna on a friend's house, it's just a little higher, which probably even means the rate of success you get is higher too.
Furthermore, the conditions don't look all that bad, from what I can gather from the pictures on the site. It's very exciting, but I don't really think it's worth the prizemoney. 8)
-raz
"I shoot troubles with a jackhammer"
Last weekend at DefCon?
(checking calendar)
dmiessler.com -- grep understanding knowledge
Well yes the technology concept is not new but lets face it. If you can get a rock solid 54Mbps connection anywhere on say a Sharp Zaurus SL-5500 or a Dell X5 or a :)
Besides, then there is the it-can-be-done mentality. People want to push the limits of their technology to see if it can do it. If it can't then how can they make it to. It is all about going where no (wo)man has gone before. Remember, people thought about going to Mars long before Beagle 2, Spirit and the other nauseatingly named robot landed there - Gallileo even passed it (IIRC) but now we are getting down and dirty with the red earth - or would that be red mars
I'm looking forward to when this kind of technology becomes more mainstream (and cheap).
You will be able to "phone" your nearby friends (usually most of them) by using regular p2p netphone software and a Wi-Fi connection... why limiting to audio? Videomeeting software! Free-of-charge digital communications possible?
Goodbye to those ZIP and CD-Rs and DVD-Rs, now you can upload your work from your home pc directly to your office desktop (maybe companies will have to implement stronger security measures).
On the downside, I can see a new generation of viruses, trojans and worms "in the air".
Way back in '99 when wi-fi was just coming out (barely), I setup a 19.2 mile shot and got 11 mbps out of it, with only 11ms ping time.
this isn't news... and it's not even useful...
btw that wi-fi setup I did is still running today!
and didn't we see some recent stories on slashdot of wi-fi setups running more than 30 miles with decent through-put ?
Is some form of punishment both for people that submit, and people that repost, duplicates.
Especially in this case, when said submitter claims it's "last weekend" when in fact it occured last summer, and was all over Slashdot at the time.
Is there some sort of "secret" contest going where people try to get the editors of Slashdot to post the oldest articles possible? Is this the new fad since goatse.cx is gone?
What do I win?
Need Free Juniper/NetScreen Support? JuniperForum
Why Metric or English, use the system that suits the situation, both have benefits for exaple take 1/3 of a meter vs 1/3 of a yard, which rounds? Most of the units (volt, time, ohm, lenght, mole) have nothing in common with either sytem.
Guess it took them since the competition ended (and the first story came out) to actually document their success???
Still a cool accomplishment, especially considering I think the antennas had to be built then and there (or maybe the team just got lazy). Goes to show you what a little knowledge of efficient antenna designs can do for you.
--Darren
Someone tell Cmdr. Taco before he signs the DirecWay contract.
Too bad the grand prize winner has no content on their website. Just a big black, blank page with some embedded proprietary binary file.
http://www.anybrowser.org/campaign/
I attend defcon and I assue you the defcon dates for 2004 are July 31, Aug 1, 2. Theres no way that this took place "last weekend" as the article says
A special envoy of the Pope has been called in to investigate the possible miracle. Said one bystander, "I don't think it was, like, God or something because this chicken burrito is way overdone."
I've got a 15 inch...
er wait a minute...
My hyperlinks aren't worth the paper they're printed on.
And SBC can't seem to be able to get me more then 384kbps and I am only about a mile from their office.
Some useful technical information / photos in relation to extending WLAN links can be found on the FRARS WLAN website here.
Does anyone know how/where to find more info (url) which explains exactly how and what to do, to boost a wifi-signal?
I would like to give it a try myself, but it would help if there was a step-by-step tutorial somewhere.
Does anyone know?
Why doesn't anyone ever point out that these guys/gals/idiots (and most other 802.11b antenna articles on Slashdot) are operating their transmitters illegally? You'd think folks like TechTV wouldn't sponsor illegal activity.
There are ERP limits (Effective Radiated Power) for 802.11b under their FCC Part 15 licensing.
No one seems to particularly care that there are legitimate licensed users in the 2.4 GHz band, I suppose.
Follow the legal limits in Part 15, folks... or ask the FCC to change the laws. Doesn't seem like that difficult a request.
I'd love to see the FCC show up at the next Wireless Shootout with a video camera and then start handing out $10,000 fines to all participants. Now THAT would be worthy of posting on /.
Real "nerds" (since /. is supposedly for nerds) use licensed radios and measure their power output levels with spectrum analyzers and RF service monitors... and probably build the antenna array using an RF Network Analyzer, too. They don't duct tape together some chicken wire.
They put up antennas like these.
These hacks and their /. fans are just illegal wanna-bees.
Of course, most /. techno-wanna-bee-idiots also use crappy RG-8 mini-foam coax to hook it all up with and let all the RF dissipate before it ever reaches the high gain antenna anyway...
Lame "radio" article - As usual.
Mod me Troll if you like. 802.11b "hackers" have zero idea what radio really is.
+++OK ATH