Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Wi-Fi World Record

CmdrTaco posted more than 10 years ago | from the and-my-house-still-only-has-a-28.8k-modem dept.

Wireless Networking 235

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."

cancel ×

235 comments

Sorry! There are no comments related to the filter you selected.

Most erect cock record broken! (-1)

(TK)Dessimat0r (668222) | more than 10 years ago | (#7032929)

-PENIS--PENIS--PENIS--PENIS-
P_______________________8..P
E__Bow down to the_____#~..E
N__Lord's penis_______8.',-N
I_____________________#',-.I
S__Jesus wants your__8',-..S
-__anus, and he_____#~',-..-
P__wants it NOW! ___8_',-..P
E__________________##',-',-E
N__An original_____8',-',";N
I__TrollKore______##',-',";I
S__work of art.___8',-',";.S
-__By Dessimat0r ##',-',";.-
P________________8',-',";,.P
E_______________#'',-',";,.E
N______________8(',-',";,..N
I_____________#(',-',";,.,.I
S__________#8#8_',-',";,.,.S
-_________#',-.8',-',";,.,.-
P________8~',-..#',-',";,..P
E_______#'',-',";8_',-',";.E
N_____8=',-',";.+#+',-',";.N
I____#=',-',";,._8',-',";,.I
S___#=',-',";,..(#',-',";.8S
-__8(',-',CMDR,.(8',-',";s#-
P_8(',-',.TACO.";#',-',-s8_P
E_#z',-','WOZ',";8',-..s#__E
N_8_.,#',"ERE',";~#,..88___N
I_#.##',-,',',,";~8,8#_____I
S_8##',-+~'',-',-~#'8______S
-_#.,..-',-',";.'=8#_______-
P_.8+_',-',";,.'88_________P
E___888',-',";~8___________E
N______8#888#88____________N
I__________________________I
S____.oO TrollKore Oo._____S
-_At the head of the game._-
P__________________________P
E___irc.freedomirc.net_____E
N_______#trollkore_________N
I__________________________I
S__________________________S
-PENIS--PENIS--PENIS--PENIS-

Get the code to the TrollKore ASCII penis here... [slashdot.org]

All you cock-loving fuckers out there, here is a special treat for you bastards, take a look at this knob. NOW SUCK IT, MOTHERFUCKERS!

You are not logged in. You can log in now using the Important Stuff: Please try to keep posts on topic. Try to reply to other people's comments instead of starting new threads. Read other people's messages before posting your own to avoid simply duplicating what has already been said. Use a clear subject that describes what your message is about. Offtopic, Inflammatory, Inappropriate, Illegal, or Offensive comments might be moderated. (You can read everything, even moderated posts, by adjusting your threshold on the User Preferences Page) If you want replies to your comments sent to you, consider logging in or creating an account. Problems regarding accounts or comment posting should be sent to CowboyNeal the convenient form below, or Important Stuff: Please try to keep posts on topic. Try to reply to other people's comments instead of starting new threads. Read other people's messages before posting your own to avoid simply duplicating what has already been said. Use a clear subject that describes what your message is about. Offtopic, Inflammatory, Inappropriate, Illegal, or Offensive comments might be moderated. (You can read everything, even moderated posts, by adjusting your threshold on the User Preferences Page) If you want replies to your comments sent to you, consider logging in or creating an account. Problems regarding accounts or comment posting should be sent to CowboyNeal

Interesting. (-1, Offtopic)

Anonymous Coward | more than 10 years ago | (#7032930)

My penis is the same length.

Range is fine but... (4, Funny)

Cyno01 (573917) | more than 10 years ago | (#7032932)

Unfortunately the neighbors decided to microwave a burrito and their throughput went all to hell.

Re:Range is fine but... (0)

keepr (613447) | more than 10 years ago | (#7033222)

ok stop me if you have heard this one..
2 pollocks climb a mountain ......

Re:Range is fine but... (0)

Raghead (167999) | more than 10 years ago | (#7033293)

A pollock is a fish. Gee, that is funny... mountain climbing fish!

Re:Range is fine but... (4, Funny)

swordboy (472941) | more than 10 years ago | (#7033327)

Unfortunately the neighbors decided to microwave a burrito and their throughput went all to hell.

Who needs a microwave when you can just stick the burrito in the access point's line-of-sight?

I suppose that could possibly affect throughput as well...

Wi-Fi jargon (0)

Leffe (686621) | more than 10 years ago | (#7032933)

110 Kms at 2.4 GHz

Exactly what does this mean? It doesn't make much sense to a non-techie like me :)

Re:Wi-Fi jargon (0, Informative)

CausticWindow (632215) | more than 10 years ago | (#7032952)

It's just the speed of the signal. It translates to about 450 mph.

Didn't use to make much sense to me either, but then I took a bs in cs.

Re:Wi-Fi jargon (1)

Leffe (686621) | more than 10 years ago | (#7032966)

Ok, thanks.

Hmm... I should take some CS too...

Re:Wi-Fi jargon (4, Informative)

EddWo (180780) | more than 10 years ago | (#7033039)

Is this a joke?
The speed of the signal is the speed of light.
The frequency of the signal is 2.4GHz
The distance the signal was received at was 110Km

The wavelength was 299 792 458/2 400 000
= 124.913524m

I take it you never did any physics then

Re:Wi-Fi jargon (0)

Anonymous Coward | more than 10 years ago | (#7033387)

you used 2.4 Mhz rather than 2.4 Ghz :)

the real wavelength is around 12 cm.

Re:Wi-Fi jargon (3, Insightful)

Jugalator (259273) | more than 10 years ago | (#7033041)

I was actually confused by the "Kms" notation. Never seen that before... Kilometers shouldn't be "Kms", just like meters shouldn't be "ms"...

Re:Wi-Fi jargon (-1)

Anonymous Coward | more than 10 years ago | (#7033131)

Informative? God, the average moderator IQ must really have dropped...

Re:Wi-Fi jargon (-1)

Anonymous Coward | more than 10 years ago | (#7033186)

Informative? God, the average moderator IQ must really have dropped...

You must be new here..

Re:Wi-Fi jargon (0)

Anonymous Coward | more than 10 years ago | (#7033343)

Didn't use to make much sense to me either, but then I took a bs in cs.
Maybe you should ask your college for a refund.

Re:Wi-Fi jargon - Distance / Frequency (1)

tbase (666607) | more than 10 years ago | (#7032963)

Here's a translation [google.com] of the distance. The 2.4 GHz refers to the frequency used (similar to a cordless phone).

Re:Wi-Fi jargon (5, Funny)

Lumpy (12016) | more than 10 years ago | (#7033166)

Exactly what does this mean? It doesn't make much sense to a non-techie like me :)

The shiney dishey pointey things let the silly men send naughty pictures a long way through the air magically.

Polish (5, Funny)

Crash42 (116408) | more than 10 years ago | (#7032936)

Well, my polish is not that good (except my RPN/RPL) so i'll take your word for it....

Old joke to be duped (3, Funny)

heir2chaos (656103) | more than 10 years ago | (#7032937)

How many pollocks did it take to acheive this?

Re:Old joke to be duped (-1)

Anonymous Coward | more than 10 years ago | (#7033187)

Your momma!

Re:Old joke to be duped (1)

Sherloqq (577391) | more than 10 years ago | (#7033190)

In this case, five :)

# Piotr Kroplewski - owner of INTERLINE, who supplied the antennae
# Wieslaw Karpowicz - production manager
# Maciej Kaminski - director of technology dept.
# Krzysztof Mularczyk - wireless networks expert
# Krzysztof Juszczyszyn - tech dept.

Re:Old joke to be duped (-1)

Anonymous Coward | more than 10 years ago | (#7033198)

Hahaha...those dumb Pollocks.

Re:Old joke to be duped (0)

Ubergrendle (531719) | more than 10 years ago | (#7033252)

Less than the required # of hackneyed American comedians?

WOW! THE DISTANCE! (4, Funny)

thoolie (442789) | more than 10 years ago | (#7032941)

"stretching the range of a Wi-Fi network for an amazing 110 Kms "

Man, I never thought they would be able to strech the thing 110 Kilometer seconds!

Re:WOW! THE DISTANCE! (-1, Offtopic)

Anonymous Coward | more than 10 years ago | (#7032987)

*insert goatse.cx reference here*

Re:WOW! THE DISTANCE! (1)

sharkey (16670) | more than 10 years ago | (#7033109)

110 Kms

110 Kilometer seconds

Shouldn't that be Kelvin milliseconds?

Other Antenas? (0)

Hiro2k (264020) | more than 10 years ago | (#7032943)

Why not use a bunch of cantenas ?

110 Km? (2, Funny)

JRHelgeson (576325) | more than 10 years ago | (#7032944)

WOW! 110 Kilometers! What is that, like 500 feet?

Re:110 Km? (2, Funny)

grokster (557481) | more than 10 years ago | (#7032960)

How big are your feet?

Re:110 Km? (1, Redundant)

Crash42 (116408) | more than 10 years ago | (#7032982)

it's about 70 miles.

Re:110 Km? (2, Informative)

dcordeiro (703625) | more than 10 years ago | (#7032989)

FYI,
google calculator [google.com] says its something like:
110 kilometers = 68.3508311 miles

Re:110 Km? (1, Funny)

Anonymous Coward | more than 10 years ago | (#7033062)

i remember you, you're that engineer who programmed that polar Mars probe aren't you?

Err... it is a cheat (5, Interesting)

arivanov (12034) | more than 10 years ago | (#7032945)

Err... My polish is crap, but unless I am mistaken they seem to have used a 500mW aplifier and a 27dbM antenna to boot.

What's next? Sticking it in the middle of Aresibo and claiming half a light year range?

Re:Err... it is a cheat (4, Funny)

Zocalo (252965) | more than 10 years ago | (#7033070)

What's next? Sticking it in the middle of Aresibo and claiming half a light year range?

Pshaw! Who needs Arecibo? *My* crappy off-the-shelf 802.11b card can get *infinite* range un-aided! True, picking the signal out from the noise at more than 50ft is proving problematic at present, but once I've ironed out that minor problem I'm well on my way to PROFIT!!!

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.

Re:Err... it is a cheat (1)

tundog (445786) | more than 10 years ago | (#7033161)

Assuming a perfect vacuum, naturally

You forgot about the frictionless pond!

Re:Err... it is a cheat (0)

Anonymous Coward | more than 10 years ago | (#7033205)

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.

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.

Re:Err... it is a cheat (1, Insightful)

Anonymous Coward | more than 10 years ago | (#7033259)

Speaking of not paying attention...

"True, picking the signal out from the noise at more than 50ft is proving problematic at present," quoth the parent.

Re:Err... it is a cheat (0)

Anonymous Coward | more than 10 years ago | (#7033210)

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 [part-15.org] HTH

and probably not legal (1)

RMH101 (636144) | more than 10 years ago | (#7033120)

from memory, there's a legal maximum to what you're allowed to broadcast wifi with without a licence. it'll be less than half a watt as well...

Re:and probably not legal (1)

afidel (530433) | more than 10 years ago | (#7033318)

This would not be legal in the US based just on the antenna which is 27dBi, the max gain you can have with a 100mW card is 24dBi. In addition they used a 500mW linear amplifier which makes the output power many times more than the FCC allowed limit and probably creates all sorts of nasty noise on adjacent frequencies.

Hrmm (4, Funny)

acehole (174372) | more than 10 years ago | (#7032946)

I guess using two pringles cans instead of two really did the trick.

Opps (1)

acehole (174372) | more than 10 years ago | (#7032984)

I meant...

I guess using two pringles cans instead of one really did the trick.

Damn measurement standards..!! (4, Funny)

Anonymous Coward | more than 10 years ago | (#7032954)

110kms??? What's that in freight trains?

or how many of the sears tower layed on it's side?

Re:Damn measurement standards..!! (0)

Anonymous Coward | more than 10 years ago | (#7033153)

I prefer dollar bills laid end-to-end, or for longer distances (say the Earth to Mars): football fields.

Re:Damn measurement standards..!! (1)

The Grassy Knoll (112931) | more than 10 years ago | (#7033235)

Never mind freight trains, how many times the size of Wales [simonkelk.co.uk] is that?

Huzaa! (2, Funny)

rf600r (236081) | more than 10 years ago | (#7032955)

Maybe there's hope for me getting a signal down the hall?

Naaaahhhhh.......

Re:Huzaa! (1, Insightful)

Anonymous Coward | more than 10 years ago | (#7033188)

Nope, no hope. I've setup about four dozen wireless Ethernet networks for the ISP I work for, and not a one of them works worth a damn. Well, there is one that covers only one room that works 100%, but other than that, 802.11 is complete crap. You can often get it to work for a few minutes, like these guys have, but long-term, you have non-stop problems. Even with 24 dBi antennas on each end and 100mW transmitters, the main wireless connection at the ISP I work for still doesn't work worth a damn going just across a wide street. We're using it since it's taking Hell$outh, err BellSouth, 18 months and counting to move our T1 to Sprint.

I wish a company would start making wireless that works. Instead, the marketers rule and keep pushing for bigger numbers on the boxes. Who cares if it's 5.5, 11, or 55 Mbps if it doesn't work at all?

that's 110 kilometers... (5, Informative)

192939495969798999 (58312) | more than 10 years ago | (#7032957)

or 66 miles for the math impaired (sigh). Still, that's rad! You could access that across the English channel!

Re:that's 110 kilometers... (-1, Informative)

Anonymous Coward | more than 10 years ago | (#7033018)

68.350831 miles, actually

Re:that's 110 kilometers... (4, Insightful)

zerocool^ (112121) | more than 10 years ago | (#7033047)

I don't know about across the english channel. At some point, you pass the horizon, where you can't go any further due to the curvature of the earth. I was pretty sure that level was around ... either 50 or 100 miles, I don't remember. Can you see France from Kent?

~Will

Re:that's 110 kilometers... (0)

Anonymous Coward | more than 10 years ago | (#7033103)

Can you see France from Kent?

No, the garlic fumes get in the way :-)

Re:that's 110 kilometers... (1)

StressedEd (308123) | more than 10 years ago | (#7033228)

Oh! I never knew Kentarians liked garlic so much.

Re:that's 110 kilometers... (2, Informative)

chrestomanci (558400) | more than 10 years ago | (#7033306)

Can you see France from Kent?

You can, though it is easier to see Kent from france, as the white cliffs of dover stand out quite well.

BTW, it is about 20 miles, (across the straights of dover) and there are tall cliffs on both sides, which improves sight lines

Re:that's 110 kilometers... (3, Funny)

Rosco P. Coltrane (209368) | more than 10 years ago | (#7033125)

You could access that across the English channel!

Yes, and just imagine the improvement when they finally dig the 802.11b tunnel!

Slashdotted.. (0)

Anonymous Coward | more than 10 years ago | (#7032972)

Please tell me they aren't using this wireless link for their server..

5 comments and it's toasty already..

Geek factor 9.3 useful factor 1 (2, Interesting)

obi1one (524241) | more than 10 years ago | (#7033001)

(error 1337 destination page /.ed) Is increasing the range of current wireless networking equipment really what is needed. I know i personally am turned off from wireless not because of the lack of range, but the lack of speed. There is certainly some cool factor being able to get that masssive a distance, but I dont see this as making wireless more desirable to anyone.

Re:Geek factor 9.3 useful factor 1 (1, Insightful)

FatAlb3rt (533682) | more than 10 years ago | (#7033158)

802.11g claims 54Mbps - how much faster do you need? hell, 11b is 11Mbps. that's still faster than most people's internet access.

the speed is where it needs to be (for now). i am very interested in getting a signal that doesn't crap out when i go to the other side of the house.

anyone got a link for a comparison of AP brands vs. range? comments on the linksys signal booster?

Re:Geek factor 9.3 useful factor 1 (1)

BigBir3d (454486) | more than 10 years ago | (#7033224)

802.11g claims 54Mbps

"802.11g is still a 54Mbit/sec standard," Bell told MacCentral. "802.11b is 11Mbit/sec, but your actual throughput is somewhere between 4 and 5-1/2Mbit/sec. The number that's quoted is the data rate that's used between the radios (raw data rate, which includes the protocols etc.)"


Although internal tests have shown slightly higher data rates, the actual data rate for 802.11g will be approximately 20Mbit/sec, which is 4 to 5 times higher than 802.11b. Bell said the data rate has always been around 20Mbit/sec and hasn't changed in the final draft standard.

source [macworld.com]

They stole his idea... (2, Informative)

tbase (666607) | more than 10 years ago | (#7033006)

Hey - that antenna they're using looks a lot like the one from this story [slashdot.org] . Of course, he only claims a LOS range of 10 Miles.

Re:They stole his idea... (0)

Anonymous Coward | more than 10 years ago | (#7033207)

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!

Faraway, But So Close? (5, Funny)

ausoleil (322752) | more than 10 years ago | (#7033013)

I for one find it ironic that someone can detect and possibly decode my WiFi signal from roughly 70 miles (per the new world WiFi record) but I can't get a useable signal on my laptop three rooms away from the WAP.

First time I've seen this happen... (2, Informative)

JRHelgeson (576325) | more than 10 years ago | (#7033014)

We /. the site, and it's not even in english. Who's going to RTFA when it's in polish?

Anyone got a Polish->English translator?

I checked Google, Babblefish & Dictionary.com with no luck.

Re:First time I've seen this happen... (2, Informative)

Sherloqq (577391) | more than 10 years ago | (#7033053)

see "Some details" further down.
I didn't translate, but I summarized the most important bits.

Here's the equipment they used (which I didn't include in my other post):

# Antennae - Interline PARABOLIC maxi, 27 dBi
# Access Points - INTEL Pro/Wireless 2011 Access Point, made by SYBMOL
# Cables and connectors - BELDEN H-1000, H-155, RG-316, VITELEC connectors
# Wireless cards - Lucent ORiNOCO PC Card Silver/chipset Agere, ZCom XI-300/chipset Intersil
# Amplifier - 2.4 GHz, 500 mW

Re:First time I've seen this happen... (1, Informative)

Anonymous Coward | more than 10 years ago | (#7033091)

Mirror here [mq.edu.au] It's at uni, so I've no idea how long it will last...

Wow 110 kilometers (1, Funny)

Zakabog (603757) | more than 10 years ago | (#7033020)

I wonder how many pringles cans that took.

Re:Wow 110 kilometers (2, Funny)

Inflatable Hippo (202606) | more than 10 years ago | (#7033083)

> I wonder how many pringles cans that took.

275,000

They connected them end to end in an unbroken chain between the base station and client.

Re:Wow 110 kilometers (1)

EnVisiCrypt (178985) | more than 10 years ago | (#7033236)

I know you're joking, but assuming that a pringles can is 9.25in tall (the best figure I could find), it would take 450,082 end to end to reach that distance. :)

For those who don't understand Polish (4, Informative)

miodekk (680870) | more than 10 years ago | (#7033032)

The folks used devices that are freely available on the market (WiFi or WLAN PCMCIA cards, amplifier, antennas, etc), chosen locations within the range of about 66 miles (110 km) with visibility (to achieve this you must see the other point).
So this is a relatively cheap method to get Internet access in distant locations, specifically in mountains, where it is difficult to get a wire.

Regards

Some more details (1)

miodekk (680870) | more than 10 years ago | (#7033074)

They have achieved a steady transfer of about 40KB/s (40 kilobytes/second) using normal FTP.
The negotiated bandwidth was 1Mb/s.
And the weather conditions were far from perfect :-)

Regards

Some details... (5, Informative)

Sherloqq (577391) | more than 10 years ago | (#7033034)

The article claims the experiment used off-the-shelf, commercially available, unmodified components (1.1m / 3.5ft parabolic antenna and a 500mW amplifier). Experiment was conducted in a mountainous region in southwestern Poland.

So this isn't all that bad... considering the average laptop wireless card puts out, what, 20mW? 50mW? using a 500mW amp to achieve a much greater distance is pretty sweet. By comparison, the article quotes a Swedish experiment which used stratospheric baloons and a 6W amp, but they don't mention the distance achieved.

Mind you, rules about how much power certain appliances / transmitters can put out with or without a permit vary across the globe, and I'm not sure whether 500mW is legal for private unlicensed use in Poland or not. But if it is, more power to them.

Now, where can I get mine?? :)

Re:Some details... (4, Informative)

Sherloqq (577391) | more than 10 years ago | (#7033090)

Few more notes...

Initially they didn't use an amp, and were getting 20% thruput, which allowed for a 1Mbps link to be established. That link kept going down every few seconds, tho, so they put in the amp. This boosted their RSS readings from 8 to 28, which meant 80% thruput. Having reached that, they tried to ftp a file and although they don't say how big it was, it was copied over at 40kBps, or around 0.5Mbps.

I don't know about you, but seeing ping replies in the single digits and low teens while ~70miles away makes my spine tingle.

Re:Some details... (1)

jrockway (229604) | more than 10 years ago | (#7033395)

Sorry, your notation confused me. The file transferred at 40KiB/s. That's 0.5Mbps or about half-T1. I get it :)

Re:Some details... (0)

Anonymous Coward | more than 10 years ago | (#7033181)

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?

Re:Some details... (1)

afidel (530433) | more than 10 years ago | (#7033393)

Typical cards have a max transmit power of 50mW and the good ones (like Cisco's) have a max of 100mW. I'm not sure if Poland's entry into the EU means that they fall under ETSI regulations, but if it does this most certainly was NOT legal as the ETSI standard limits transmit on cards to 50mW and point to point links are even more limited to than the US (which is 24dBi gain on a 100mW card).

110kms? The world record is already 310km. (4, Informative)

wherley (42799) | more than 10 years ago | (#7033037)

Here [newswireless.net]
is the story from July of an outfit getting 310km using WiFi from ground to a balloon. This was done by Alvarion and the Swedish Space Corporation and acknowledged by Guinness (as in world records not as in beer).

Re:110kms? The world record is already 310km. (1)

Anti_Climax (447121) | more than 10 years ago | (#7033089)

It may not be the world record, but more power too them, especially since they did it from two terrestrial points. With fog, dust, reflections off anything along the ground, I'm glad to see them break the 50 mile mark with readily available hardware.

So you know, Guinness of beer and guinness of World Recod were (are) one in the same. The Guinness Book began as reference to settle disputes common amongst drinkers and bar goers who insisted they knew about the biggest/best (insert random arguement starter here)...

Re:110kms? The world record is already 310km. (1)

legend (26856) | more than 10 years ago | (#7033093)

Mod parent up. This one with the balloon is for real, and yes, it already holds the record.

Re:110kms? The world record is already 310km. (1)

miodekk (680870) | more than 10 years ago | (#7033118)

> getting 310km using WiFi from ground to a balloon.

Yes. But for normal use ground to balloon connection isn't very usefull.
This time it was ground - ground connection. One point was on the mountain at the height of 1400 meters above sealevel, and the other in a distant city on a scyscraper.
Btw. 1400 meters is about 4600 feet.

RTFA for the whole truth (1)

Sherloqq (577391) | more than 10 years ago | (#7033122)

The weather balloon reached a maximum height of 29.7 km and drifted steadily. It finally touched down east of Sodankyla in the northern part of Finland, having travelled approximately 315 Km.

On the balloon, the BreezeNET DS.11 unit was connected to a high-power amplifier with 6 watts power output, a camera and a server.

Impressive though the achievement is, it has no bearing on how WiFi networks are allowed to work on Planet Earth. Down here, you're restricted to much lower power outputs and much smaller antenna gain.


So, they used a much more powerful amplifier, through much less polluted air (I assume), and do not mention data speeds achieved (i.e. were they at all useful)?

Still cool, but let's not burst the polish baloon just yet :)

Re:110kms? The world record is already 310km. (1)

akozakie (633875) | more than 10 years ago | (#7033239)

So? They manetion it, and they don't claim a record range. What they have achieved ia a world record ground-to-ground wireless connection. OK, so they used a mountain, but it's still ground based.

Translating from the article, word by word (I'm not much of a translator):

"It has to be stressed, that the realised link was fully ground-based (unlike the link realised in 2002 using a stratospheric baloon in Sweden by the companies Alvarion and Swedish Space Corporation).

Also important is, that all elements used in the experiment of the INTERLINE company are unmodified hardware available on the market (parabolic antenna 1.1m and 500mW amplifier), while in Sweden a 2.4m parabolic antenna and 6000mW amplifier were used."

See? That's the difference. Maybe I should translate more of this for /., but I have to leave now. Oh, boy, so much karma, so close, and yet so far away...

Re:110kms? The world record is already 310km. (1)

austwireless (699723) | more than 10 years ago | (#7033314)

72mile link that was mentioned earlier here [slashdot.org] still beats it for ground to ground by about 10km... Better luck next time kids :)

A wi-fi world record.... (-1, Offtopic)

Anonymous Coward | more than 10 years ago | (#7033054)

..... for me to POOP on !

Satellite dishes (5, Funny)

Rosco P. Coltrane (209368) | more than 10 years ago | (#7033067)

Good thing they did that in Poland. If they had tried this in the US, they'd have been sued by DirecTV for hacking a satellite TV system and the RIAA for trying to set up a P2P link. Of course, none of this would matter since they'd all be in a 3x2 federal pen cell awaiting for months to be charged with setting up a data link that could be used for terrorism ...

Re:Satellite dishes (0)

Anonymous Coward | more than 10 years ago | (#7033264)

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.

Amateur radio operators do more than this... (3, Informative)

josecanuc (91) | more than 10 years ago | (#7033068)

105 km is a good ways off. But Amateur Radio operators have been getting better than this with their voice transmissions (and possibly digital) on frequencies from 50 MHz to 10 GHz at the 2003 September VHF QSO Party.

See some of their setups at http://www.arrl.org/contests/soapbox/?con_id=53 [arrl.org] .

Our university station was making contacts on frequencies greater than 2.4 GHz for distances longer than 200 miles. Contrary to common sense, Line-of-Sight is not necessarily required to get microwave transmissions to work over long distances. But they're very weak ;-)

Re:Amateur radio operators do more than this... (0)

Anonymous Coward | more than 10 years ago | (#7033169)

yes, but the bandwidth you used was a lot less
than in the wifi link

Joe NA3T

ground attenuation... (2, Informative)

AmigaAvenger (210519) | more than 10 years ago | (#7033077)

The article already is almost dead... Can't check how they did it, BUT... the biggest problem isn't signal power, that part is easy with even a minimal amp and decent parabolic grid antenna. The tough part is the curvature of the earth. Beyond 10 miles or so, you have to get your antennas substantially off the ground, otherwise the amps and high gain antennas make absolutely no difference...

Re:ground attenuation... (2, Informative)

Kvasio (127200) | more than 10 years ago | (#7033145)

According to the page, one of the antenas was on the roof of 10-storey building in Wroc?aw
(city is located in between 100 and 148 meters above sea level), and (as I believe - it's /.'ed now) the Sniezka mountain (which is 1602 meters above the sea level). Thus the antenas were substantially off the ground...

Re:ground attenuation... (1)

Sherloqq (577391) | more than 10 years ago | (#7033164)

you have to get your antennas substantially off the ground ... which is what they did. One of the antennas was on top of a 10-story apartment building, the other was on the side of a mountain, 1400 meters above sea level (which is around 4800ft) with hardly anything in between (see map [interline.pl] ).

Re:ground attenuation... (-1)

Anonymous Coward | more than 10 years ago | (#7033199)

They used a mountain, but judging by the pictures they were only a few feet above the Earth.

Re:ground attenuation... (0)

Anonymous Coward | more than 10 years ago | (#7033203)

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

500mw (0, Redundant)

slim hades (703936) | more than 10 years ago | (#7033094)

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!

Re:500mw (0)

Anonymous Coward | more than 10 years ago | (#7033174)

500 mw = 0.5 Watts not 5 Watts

I claim a *double* WiFi distance record (1, Funny)

Rosco P. Coltrane (209368) | more than 10 years ago | (#7033100)

3603 miles, between me in Paris and my friend Bob in New-York:

My_laptop <-> my_AP <-> The_innurnet <-> Bob's_AP <-> Bob's_laptop

This is a world record. (1, Informative)

termos (634980) | more than 10 years ago | (#7033116)

or not? [newswireless.net] .

There isn't much to block a radio signal if you're in a balloon; so the news that Alvarion has managed to reach a 310 km distance probably isn't as exciting as it sounds.

If we continue to see developments such as this... (2, Interesting)

SwansonMarpalum (521840) | more than 10 years ago | (#7033178)

It will only mean that last mile solutions will become more plausible for those who don't live within a couple miles of their CO. This is a Good Thing, as having Dial-Up and Satellite as your only options is pretty unbearable.

Any ideas (1)

Cpt Kirk (579344) | more than 10 years ago | (#7033251)

So anyway what I want is wifi signal to get to my local pub :-) and to a mates house which is in the same direction. The pub is about 300m away (absolute maximum its probably around 150m really) and the mates house is about 1.5miles away. The equipment at present is a linksys wap54g and my laptop with a linksys 54g card.. I cant really get line of sight to either building but I might at some point in the future be able to put a repeated on the roof of the pub (which I can probably see from my roof). I want to do this using offshelf components. Any ideas anyone ? Cheers Cpt Kirk

Re:Any ideas (1)

really? (199452) | more than 10 years ago | (#7033382)

Errr ... get Scotty to do it? (Use some thin sheet of that transparent aluminum you guys used to house the whales, and nobody will even know you have antennae up there.)

Re:Any ideas (1)

ZackSchil (560462) | more than 10 years ago | (#7033417)

The more communication devices in a pub, the greater likelyhood for social disaster. Every single guy who drunkenly IMs his girlfriend to tell her about the hottie he's been mackin' in the bar will be out for your head.

polish.. they must of... (0)

Thelonious Monk (667418) | more than 10 years ago | (#7033338)

They used vodka bottles.....plenty of them.
Load More Comments
Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>