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Comments on news posted 2004-08-04 09:33:21: Wi-Fi Enthusiasts at last weekends Defcon "Wi-Fi shootout in the Desert" were able to make an unamplified, 55 mile Wi-Fi connection, reports Wired News. A group of three teenagers set the new land distance record simply with ordinary 802. ..

page: 1 · 2
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Slidetbone
Mazin Go
Premium
join:2002-11-10
Land O Lakes, FL
Line of sight

With a yagi and nothing in between, I am sure it is possible to go even farther.



ronpin
Imagine Reality

join:2002-12-06
Nirvana
Bit Rate?

I don't see the bit rate they attained?


Pope
Premium
join:2001-08-05
Napa, CA
That's great.

That's nice, but I still can't get wireless access in my town. Perhaps we need more constructive wireless competitions.

Pope
--
It's all good. | Drive Safely, life is a one time thing.

rationale

join:2004-07-27
30323
How many live out in the desert?

How many live out in the desert? I thought so.
--
When logic fails.

RFJock

join:2004-01-13
Norfolk, VA

Good Show!

Not 100% sure but believe two of the team are ham radio operators:

Andy Meng - N8MX
Brandon Schamer - KG4NVK

Great fusion of computing technology and RF engineering. Ham radio is not just for folks who want to talk around the world on the radio, there are plenty who do just this type of experimenting with technology fusion. I am quite sure their knowledge of antenna design gleened from amateur radio contributed greatly to the success of this project. Just goes to show the potential for wireless as THE technolgy of choice to bring broadband to rural areas.

Good on ya guys! Keep up the good work.


Hall
Premium,MVM
join:2000-04-28
Dayton, OH
Just think how far....

Just think how far they could achieve with an amplified signal ?? I think it was one the guy's dad who said they ran out of road and couldn't go farther.

RFJock

join:2004-01-13
Norfolk, VA
reply to RFJock
Re: Good Show!

Add Justin - KC8OIO to that list!


PhoenixDown
-- Wants FIOS
Premium
join:2003-06-08
Fresh Meadows, NY
clubs:
I wonder if I could do this in nyc

Then I could travel for a good distance around my house without worrying about finding a place to link up.
--
Final Fantasy


Slidetbone
Mazin Go
Premium
join:2002-11-10
Land O Lakes, FL

reply to Hall
Re: Just think how far....

said by Hall See Profile:
Just think how far they could achieve with an amplified signal ?? I think it was one the guy's dad who said they ran out of road and couldn't go farther.

yeah, but I bet the FCC has the max wattage restricted in that band. Probrably less than 1 watt.


Slidetbone
Mazin Go
Premium
join:2002-11-10
Land O Lakes, FL
reply to RFJock
Re: Good Show!

»www.netscum.com/~clapp/wireless.html

Had read about them before. Looks like I will build one now.


jap
Premium
join:2003-08-10
038xx
·RoadRunner Cable

reply to RFJock
said by RFJock See Profile:
Ham radio is not just for folks who want to talk around the world on the radio
Not that there's anything wrong with talking around the world, I hope. It's what internet users *try* to do in their lame, cryptic KB code and the "killer app" voice technology hasn't yet built a community space where all-can-hear-all. The ham community is & should remain the world's best long distance, durable, ongoing community of users.

You're absolutely correct that wireless *is* the technology that will packet-connect rural areas - that's been obvious since 2001 when Wi-Fi lab development made clear that stable distance signalling and relay is possible.

I'm not a ham user, never been a ham user but have the utmost respect for the ham community and often look with envy upon their friendly relationships that span cultures & continents. Good on ya for any work that advances Wi-Fi's penetration into rural markets.


viperm
Carpe Diem
Premium
join:2002-07-09
Winchester, CA

reply to PhoenixDown
Re: I wonder if I could do this in nyc

This article says they DID use amplification???

Ben Corrado, Andy Meng, Justin Rigling and a fourth friend, Brandon Schamer (who didn't accompany them from Ohio), won the greatest distance achieved for an 802.11b network. The teens, two of them 18 years old and the other 19 years old, achieved 55.1 miles using homebrewed antennas on both ends along with amplification, exceeding last year's winner by 20 miles.


sbdjaro
I Dunno
Premium
join:2004-01-29
Grand Junction, CO
»www.tomshardware.com/business/20···-07.html

No amplification. Said they could have gone farther but ran out of road...

moonpuppy

join:2000-08-21
Glen Burnie, MD
·Verizon Online DSL

reply to RFJock
Re: Good Show!

WHAT? I thought all we HAM radio guys were old men who did nothing but talk on the radio.

Dang kids, they should be working on BPL deployment. (insert sarcasm here) :D:D

Just goes to show you what can be done.

55 miles Now, that is a distance.

73's everyone


calvoiper

join:2003-03-31
Belvedere Tiburon, CA

reply to viperm
Re: I wonder if I could do this in nyc

said by viperm See Profile:
This article says they DID use amplification???

Ben Corrado, Andy Meng, Justin Rigling and a fourth friend, Brandon Schamer (who didn't accompany them from Ohio), won the greatest distance achieved for an 802.11b network. The teens, two of them 18 years old and the other 19 years old, achieved 55.1 miles using homebrewed antennas on both ends along with amplification, exceeding last year's winner by 20 miles.

Read the next sentence, for crying out loud:
quote:
Then, when they established that record, they turned off their amplifiers and broke the record for an unamplified connection at the same distance.
I really, really detest short attention spans....

Calvoiper
--
VoIP--the death knell of remaining voice monopolies!


5w WIFI

@207.246.x.x

reply to Slidetbone
Re: Just think how far....

yeah... 300mw is the limit.... im going above that to get high speed interent to my house from a remote location... hehe im gonna run 5w lol... (i own a small tech company and my engineering staff will be helpful with the modifications) BTW i am also a ham radio op but im not gonna give my call sign... since addresses can be found from call signs easly (»www.qrz.com) and i just said i was using a wifi amp... fcc seldom enfoces rules (as much as id like to say they did) but no sense taking chances....
BTW: no i am not in favor of jamming all wifi withing 30 miles of me but since i will be using directional antennas on both ends (obviously) over a VERY rural area the likelyhoood of my causing interferance is smaller than my chance of winning the lottery (and i dont even play!!!!). if theres even one person on 802.11 in the area im talking about ill be supprised and since there are 11 wifi channels im not worried...

73 de ??????


5w WIFI

@207.246.x.x
reply to PhoenixDown
Re: I wonder if I could do this in nyc

nope... to many buildings sturctures in the way... you will be lucky to get 1000ft


NAK
Boot Failure
Premium
join:2000-12-27
Fort Worth, TX
·AT&T Southwest
·AT&T U-Verse

I think it's great, but did they do it legally? I seem to remember there is a radiated power limit...meaning that there is a limit to not only the xmitter power but also the transmit antenna gain. You can get enough gain in a dish or a phased Yagi array that you are required to reduce xmt power to stay legal.
--
0001 0101


Ronnie123
Premium
join:2003-03-11
Springtown, TX

The limit for unlicensed 2.4 is 36dbm out the antenna for point to multi-point links.

For point to point links, you can make that quite a bit higher. You start with 30 dbm at the radio and a 6 dbi antenna to get the 36dbm being transmitted. However, in point to point, you can add 3 dbi of gain to the antenna for each one dbm you take off the radio. so if you set the radio to transmit at 24dbm you can add 18 db to the antenna and use a 24 dbi grid, giving you an eirp of 48 dbm.(i am assuming no cable or connector loss between the radio and antenna for simplicity).


superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA

reply to calvoiper
said by calvoiper See Profile:

I really, really detest short attention spans....

Calvoiper

OK Jesus, I am sure that You have never made a mistake?:D
A lot of us are pushed for time?. I am one such person. Perhaps the person in question just skimmed the article and missed the "AMP" part?
Why don't we crucify him?;)
--
»www.wavecrazy.net
Forums » 55 Mile Wi-Fi Connectionpage: 1 · 2


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