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Wi-Fi World Record
supersam writes "Interline Wireless Technology, a Polish company has reportedly set a world record in stretching the range of a Wi-Fi network for an amazing 110 Kms at 2.4 GHz. They achieved this using an antenna developed by them and an INTEL Pro/Wireless 2011 Access Point."
110 Kms at 2.4 GHz
:)
Exactly what does this mean? It doesn't make much sense to a non-techie like me
Why not use a bunch of cantenas ?
Here's a translation of the distance. The 2.4 GHz refers to the frequency used (similar to a cordless phone).
666-607: 6th floor apartment of the beast
Please tell me they aren't using this wireless link for their server..
5 comments and it's toasty already..
a 5w amp?... around here that kind of thing would have an FCC agent beating down your door faster than you can say nine-eleven... brighter side: if any stray birds pass through the line of sight for the shot, anyone living below gets a free meal... yay!
Can you see France from Kent?
:-)
No, the garlic fumes get in the way
I prefer dollar bills laid end-to-end, or for longer distances (say the Earth to Mars): football fields.
yes, but the bandwidth you used was a lot less
than in the wifi link
Joe NA3T
I'm not sure whether 500mW is legal for private unlicensed use in Poland or not. But if it is, more power to them.
Yes, but how much more power?
Heh. Since our telco is a monopoly, wavelan was the only way to get an internet connection here in Lithuania (neighbors of Poland) a few years ago. Wavelans were widely used and abused here too. One of such abuses was linking Vilnius and Kaunas (distance 100 km) in 2 hops. Antennas were placed on top of a church tower in Kaunas, on the chimney of an electric station in Elektrenai (city in the middle between Kaunas and Vilnius), and mm, i don't remember where did they put them in Vilnius. All places were quite high. The link worked, and worked well. They used standart Orinoco WaveLan cards with external antennas, but no additional amplifiers. There was packet loss, but it wasn't significant. So, it is possible to get 50 km range without 'cheating' :)
--Coder
Wow. You payed attention at the wrong time. There's a little problem called noise. Ignoring the fact that a perfect vacuum doesn't exist and never has.
Hey - that antenna they're using looks a lot like the one from this story. Of course, he only claims a LOS range of 10 Miles.
yes as we all know that using a parabolic dish is very innovative and a new idea.. How dare they!
Damn those Dish network people... they stole Primestar's idea!
Recommend WISP list at part-15.org for very informative discussions of exactly what the various unlicensed, but regulated, services can and can't do. Here HTH
ok stop me if you have heard this one.. ......
2 pollocks climb a mountain
Slashdot taught me how to use the preview button!
Oh! I never knew Kentarians liked garlic so much.
Be nice to people on the way up. You will meet them again on your way down!
Less than the required # of hackneyed American comedians?
John Maynard Keynes: "When the facts change, I change my mind. What do you do?"
"True, picking the signal out from the noise at more than 50ft is proving problematic at present," quoth the parent.
It doesn't matter that they did it in Poland - the FBI will just have to wait until they step foot on US soil before nicking them.
A pollock is a fish. Gee, that is funny... mountain climbing fish!
They used vodka bottles.....plenty of them.
He actually has a clue.
About 0.15 phathoms.
now I can get pr0n on my laptop in the middle of the desert
110 kilometers = 68.3508311 miles
Is that statute miles or nautical miles? UK Nautical miles or international nautical miles?
We're not "Kentarians" we're either "Men of Kent" on the french side of the Medway River, or "Kentish Men" on the London side. Strangely, although Men of Kents' language is different to the folk of Calais, our accent is very similar...
need a free COBOL editor for Windows?
Nope. Time for the rest of the world to submit to OUR standards.
Let we forget whose the one on the playground with the biggest stick.
While we're at it, the rest of you foreigners need to learn English.
Or was I the only person paying attention in physics when it was explained how *any* electromagnetic transmission has infinite range, since decaying amplitude in accordance with the inverse square rule never reaches zero? Assuming a perfect vacuum, naturally.
So now we need a VPN-Vaccuum Private Network
uhhh errr... no ::points:: HE IS!
Yowzah!! That's .00916 rods to the Hz!
"Comedy's a dead art form. Now tragedy, that's funny."
Amen, brother! This is one American that is ashamed that only that paragon of freedom, the Sultanate of Burnei, is the other country that sticks with us in clinging to this ole, insane system of measurements!
You want to know the REAALLLY weird thing? The only industry in the U.S. to have completely and totally switched to metric is.....the liquor industry! Somehow, they finished the switch before the Reagan administration put a halt to the "metrication" program in the early 1980's. But most American still buy "fifths" and "pints" and "quarts" of whiskey and some still have no idea that they are not even getting that! Even the liquor store people give you a dirty look if you ask for a liter of whiskey - even though it plainly says it on the people.
AMERICANS ARE STUPID!
I really believe our leaders like it that way.
Metric units of 110km, not 110 Kms, the lamer. km is a abbreviation of KiloMeters, not KiloMeter, so the s should be left out entirely, and if you are going to capitalize the K, you better capitalize the m. it's better to just leave them both at no caps.
so 110 km at 2.4GHz. 2.4GHz is superflous, we know they wouldn't be using anything else for that range, so it would have been better to just say 10km!
Idiots!
"And we have seen and do testify that the Father sent the Son to be the Savior of the World"
1 John 4:14
Ever since the pringles cantenas, that is not considered cheating. But the amp, if true, should not have been used.
110 Kms
110 Kilometer seconds
Shouldn't that be Kelvin milliseconds?
No, it should be Kelvin meter seconds
Football fields are confusing, they are typically used for area measurements. For things like the distance it is better to use a two-level pseudo-measurement system, for example; All the people in New York standing on each others shoulders would... and so on. Then we get two odd units (population of new york and the average height for a person in new york. Doubling the confusion in the name of explaining things for the daft ;)
> useable signal on my laptop three rooms away from the WAP.
You're not the only one with that complaint! I work for Best Buy, and it seems half of the wireless cards we sell come back because they won't work from one side of someone's house to another. I bought a $150 8dBi omni to get 802.11 to work reliably in my small 1,200 square foot house. Of course, as soon as I spent the money on the expensive antenna and cables, I read a post here suggesting decreasing the speed on 802.11 to make it somewhat reliable. I changed it to 1Mbps, and it worked even with the stock antennas. So, give 1Mbps a try in your house, and it might work well enough to live with.
according to this, the avg heigh of a human, in 1996, was 70.1 inches.
...
google tells me that 1 inches = 0.0254 meters.
population of new york city is 8,008,278 people (in 2000).
so we have 8,008,278 people * 70.1 inches * 0.0254 = 14,259,059.31012 metres
so, sadly, thats 14,259.059 km, which is a lot more than the wifi run.
cheers.
We emerge from our mother's womb an unformatted diskette; our culture formats us. - Douglas Coupland
We're not "Kentarians" we're either "Men of Kent" on the french side of the Medway River, or "Kentish Men" on the London side
What happened to all the women?
You sir, obviously have terrorist ties. You're plan to lay down the Sears Tower must fail.
I'm telling momm... er... Ashcroft on you.
Stormtroopers should be at your door in 5... 4... 3...
There's the problem. Most of the sheeple in the U.S. run as far away from physics as they can. Take only the required course in high school (at most, one year!) and then take Rocks for Jocks (Intro to Geology) in college, skipping physics altogether.
This general American aversion to "knowing things" and "thinking about stuff" is really irritating. I think I want to go live in Europe for a while. Of course, according to Douglas Adams, I'm screwed there too...
Jim
Yes, I mean, I guess it is extremly useful to use your laptop to access the net with a 10W amplfier powered by your batteries ...
Some friends of mine have an office with a cool position above the city (nice view from there), and they have wireless access. The idea to exploit this to have wifi at home seems somehow cool and natural to me (I don't live too far away from there), the problem is how I am supposed to send data back (in a useful way)
No, I'm New Here
well, considering Dover is in the county of Kent the odds are that if you can see Dover you can probably see Kent too.
Q: When is an editor not an editor?
A: When he doesn't edit.
Uh, if you say so.
A pollock is a fish. Surely you mean a polack...
too bad it wasn't italians that accomplished this. that way the headline could be WOPS do WAP :)
Dumbass. Kms = Kelvin meter seconds.
dude what good is the story if you cant read it? ITS IN POLISH.
yeah yeah yeah, of course you're right. now shut it then.
Funny, I thought everyone South of the Thames was just an "escaped criminal" :p
Ripping an new rectum in the fabric of spacetime.
Never ate a polish buzzard have you?
From excellent karma to terible karma with a single +5 funny post...
We keep them in the kitchen - we wouldn't want them to find out about the Frenchmen or the Londoners... ;)
need a free COBOL editor for Windows?
just a hunch
"I'd rather be a lightning rod than a seismometer." -Ken Kesey
I thought it was Kitty Money Sodas.
Ok, This is the last time I reply while under the influence... *sad*
"I used to have that really cool,funny sig
Working for a WISP the longest shot we have to a customer is 7.5 miles. With no trees :o)
He said "it would not be legal in the US" not "it would not be legal in Poland". Who cares what Poland thinks about the FCC?
I know I could certainly use some "Sound towards our huge joy for our ear"
If we're not talking Wi-Fi specifically, than satellites do 23,000 miles with similar power bandwidth ratios...
I dont supposed there is any English translations available?
I work for WiLAN and mobile access 802.16a is just a few months away ;)
you certainly deserve one
Well looks like the morons have been slashdotted
Congrats!
cameron
I always love to see the "my dick is bigger" posts on /. It's ruining the damn site. I know exactly what the original poster is talking about. 802.11 is absolute crap. It doesn't even work well enough to use 100m much less the ridiculous claim of 8km. You might have got it working for a few seconds at that speed, but we know for a damn fact it won't work consistently at 1/100 of that distance. Go take your crap elsewhere. This is a technical audience that knows better. The network at my plant needed 40 100mW access points with +6 dB omnis to cover about half of the shop floor. The only advantage 802.11 has is cost. We only needed 8 computers with WebGear Aviator 900 MHz cards to cover the same area. Unfortunately, you can't buy that equipment any longer so we had to use something else. I really miss that equipment. 900 MHz penetrates so much better than 2.4 GHz.
Wireless in metro areas is a waste of time and money unless you're doing licensed band DS3 bypass and such. I got out of it a while ago - I watched all of the thievery, stock fraud, criminal misuse of spectrum for as long as I could, but there came a day when antinausea drugs or another line of work was the choice.
... unless you have morons with torque wrenches who think they're installing the exhaust manifold on a small block chevy when they're touching your Andrew P2F. Funny thing is the chief moron for that event was *named* Andrew. I guess you'd have to know him to understand why its humorous.
Its interesting to hear that WiLan is moving along like that - there stuff has always been just bulletproof for me
Did you notice that the article mentions that this happened in Poland? Not the bailiwick of your wonderful FCC? US-centric idiot.
Too fucking funny, nice one mate.
> 802.11 is absolute crap.
Exactly. I always love to read all these ridiculous claims wrt 802.11. It's entertaining like the National Enquirer. So far, I've called three guys on their bluffs. One was a local guy that was claiming to get 11 Mbps from his nearly 500m connection. We all know that's a lie. I ran a "ping -s 1500 10.0.0.1" on one end. The "-s 1500" part is important. It tells ping to use 1,500 byte packets. With the default 56 byte packets, there was only 2% packet loss which I might call working. With the 1,500 byte ones, the packet loss was >30%. I wouldn't call that 802.11 connection "working."
Another was in Asheville, NC. He had great line of site between his office building and his house on top of a mountain. This is a wild guess, but I think the receivers were about 2km apart. He called it working, but when I visited his office, I got the real story. "I saw it work for a few seconds so I know it might work if I get it aimed just right." That's not working, and I saw a post here on slashdot bragging about how he got it to "work."
The third was in the middle of nowhere in Maine. You know the type of place where the chance of any interference is absolutely zero. I met him when we worked together at Net Access in Philly. He claimed to have a wireless connection working between his house and his guest house. After going to visit him, I got the real story. He spent about $2k in antennas and cables from hyperlinktech.nu, and still couldn't get it to work at more than 1 Mbps with >50% packetloss at times. Admittedly, there were trees in-between the two houses, but they should have worked with those nice antennas at a distance of only 50m. He used wireless because he didn't want to run any cables between the two buildings since they used separate generators. In retrospect, he should have taken one of his spare cisco's and a pair of CSU/DSU's and used them.
Out of all of those, doing "iwconfig eth0 rate 1M" to set the maximum transmit speed to 1 Mbps and "iwconfig eth0 256" to set the packet size the wireless protocol uses on both ends helped greatly, but it still wouldn't be what should be called working.
That is not correct.
r et ingFccRegulations
You can actually put up to 24dBm into a 24dBi parabolic, 48dBm EIRP, on a fixed point to point link. 100mW would be just fine. 24dBm actually is ~250mW.
Under FCC regulations, the maximum EIRP for a fixed point to point link is variable depending on the antenna gain you use. You are rewarded with more EIRP by tightening your beam down. Makes sense. More reliability, less interference. Win-win for everyone.
This scale starts from a 6dBi antenna with 30dBm input power. For every 3dBi of antenna gain beyond this, you must subtract 1dB of input power. And yes, its as confusing as it sounds.
There is also no set limit how much EIRP you are permitted in a fixed point-to-point link, as long as you follow all the rules. And yes, RF safety regulations will become a factor when you start punching kW of RF with your beam-of-death 70dBi parabolic.
Check out the table at the bottom of this page for reference:
http://www.seattlewireless.net/index.cgi/Interp
First off, congrats to the team on accomplishing this feat.
e /s tory/0,10801,75830,00.html
o rd .html
I would also like to note the two existing world records:
Longest fixed link in operation: 115 km (72 miles) by HPWREN
http://www.computerworld.com/mobiletopics/mobil
Longest temporary wireless link: 310 km (192 miles) by weather balloon -- in Guinness
http://www.newswireless.net/articles/030307-rec
No. I don't think you can combine three units like that (temperature over distance AND time?!?). It WOULD be K/ms, or Kelvin/milliseconds.