Idaho Companies Tout New Wireless Record 146
pavelvp writes "A small wireless Internet service provider in Idaho and a wireless equipment start-up claim to have set a new record for transmitting data across a wireless link this week. Microserv Computer Technologies, based in Idaho Falls, and Trango Broadband Wireless, a fixed-wireless broadband equipment maker, announced that they transmitted data over unlicensed wireless spectrum 137.2 miles." This unverified record would beat the previous record holders from the DefCon WiFi Shootout covered earlier on Slashdot.
What I want to know is... (Score:2, Funny)
Re:What I want to know is... (Score:2)
What I want to know is... (Score:2, Informative)
Been there. Done that. (Score:5, Informative)
Re:Been there. Done that. (Score:2, Informative)
Re:Been there. Done that. (Score:2)
Aside from that... what spectrum did Voyager use, was it unlicensed?
Re:Been there. Done that. (Score:4, Insightful)
It could be argued that there is no current body with the authority to license spectrum outside of Earth.
Unless the FCC claims the whole of our solar system in it's domain.
Re:Been there. Done that. (Score:1)
Re:Been there. Done that. (Score:2)
It could be argued just as effectively that, since that distance was not of our world, what Voyager did doesn't qualify for a world record.
Unless the FCC claims the whole of our solar system in it's domain.
That wouldn't surprise me.
Re:Been there. Done that. (Score:2, Funny)
Mod parent DOWN! Let's not give George W. Bush any ideas!!!!
Re:Been there. Done that. (Score:2)
Next, on 60 Minutes, why stars really appear to die.... and Andy Rooney!
Re:Been there. Done that. (Score:2)
http://www.arrl.org/FandES/field/regulations/io/m
Re:Been there. Done that. (Score:5, Insightful)
This whole business of 'records' for wireless transmissions is just so silly, a game of 'mine is bigger than yours'. Until these folks are actually communicating with stuff that's farther from this planet than geostationary orbit, then, there's already plenty of folks communicating without wires, over distances far greater than 137 miles, as part of normal everyday operations, so common in fact, nobody thinks twice about it. For one off custom setups, well, there's a couple of little robots traversing around mars that do it daily. For highly specialized 'record breaking' stuff, look out to cassini and beyond.
Re:Been there. Done that. (Score:1)
Re:Been there. Done that. (Score:2, Insightful)
Then again, you could choose to live your life scared to death that 'pirates' may take over your little boat world, and go hide under uncle sam's skirt to prevent it.
Re:Been there. Done that. (Score:2)
http://www.arrl.org/FandES/field/regulations/io/m
You bet Voyager was licensed (Score:2)
From: http://pds-rings.seti.org/voyager/datasets/rss/vg1 sinst.html [seti.org]
The spacecraft radio system was constructed around a redundant
pair of transponders. Each transponder was equipped with an
Doesn't it have to be 802.11x? (Score:5, Interesting)
In this case, technically NASA would win by sending wireless info from sattelites.
Maybe I'm just not RingTFA correctly.
Re:Doesn't it have to be 802.11x? (Score:1)
Glanced over the article, sounds like this new startup is basically trying to sell their product.
Re:Doesn't it have to be 802.11x? (Score:1)
Indeed, and it sounds like slashdot editors aren't doing their job.
Guess who's setting ScuttleMonkey to foe and setting a -5 penalty...
ScuttleMonkey (55) is all alone in the world. I wonder why.
Re:Doesn't it have to be 802.11x? (Score:2)
Re:Doesn't it have to be 802.11x? (Score:2)
This may have been a feat 4 decades ago, but today the parts to construct a transmitter operating in that range are commodity. Shown by the fact that anyone can buy a digital wireless transmission system for under 200 dollars.
Re:Doesn't it have to be 802.11x? (Score:2)
People have talked with people all the way across the world with 5 watts of power. But that's on the HF bands -- 2.4 GHz is strictly line of sight, so it's difficult to make really long connections.
Also, the power is limited to something like 0.250 watts, though it's certainly possible to talk with somebody many thousands of miles away with only 0.250 watts -- but again, on the HF bads.
Re:Doesn't it have to be 802.11x? (Score:2)
And, it also amplifies the received signal by the same amount.
When compared with an HF bands signal transmitted by a typical dipole antenna, you would have the equivalent of about 1000 watts of power, assuming a setup like shown in the picture is used at both ends.
Of course you need line-of-sight, but the station apparently sits on a hilltop.
When comparing HF to SHF, p
Re:Doesn't it have to be 802.11x? (Score:2)
Not exactly.
What it does is aim the signal very precisely, but the same amount of signal is still transmitted. A few miles away, if the antenna is pointed right at you, the signal is as strong as if there was a 25 watt transmitter with an isotropic antenna, but ultimately there's still only 0.25 watts.
Let me make that more clear ... high gain antennas do not amplify the signal one bit. They just aim it all very precisely in one dire
Re:Doesn't it have to be 802.11x? (Score:2)
In your original post you are showing ignorance about effective radiated power by talking about "just 0.25 watts", making me try to explain that issue to the layman, and then you suddenly creep out under the cover and claim you are an extra class amateur radio operator. In that case you should have known that communication over thousands of kilometers have been made on 2.4 GHz and your claim about the power being too low is totally irrelevant.
Before turning down my calculation you s
Re:Doesn't it have to be 802.11x? (Score:2)
I never said "just 0.25 watts". If you're going to quote me, quote me. Don't just put stuff into quotes and pretend I said it.
Making you muddy the water further for the layman, you mean. Your post said the antenna amplified the signal which is flat out wrong. Simplifying things is fine, but you went too far. You may call it nitpicking, I call it being accurate.
Re:Doesn't it have to be 802.11x? (Score:2)
Discussion closed.
Re:Doesn't it have to be 802.11x? (Score:2)
I feel that I understand it fine. I even feel that I've explained it reasonably well, more accurately than you have anyways. I'd accept that maybe I didn't simplify antenna gain enough for the layperson, but that I don't understand the general gist of it? No.
If you really want the discussion to be `closed', then you'll need to point out exactly where I'm wrong in a convincing manner. Citations from subject matter experts are often ver
Proprietary != Better (Score:5, Insightful)
"What sets apart the 125-mile record set at the Defcon Wifi Shootout Contest is that it was subject to a strict verification and certification process administered by four independent judges."
That, and the fact that the Defcon record was set using standard 802.11b radios rather than proprietary technology, and that the proprietary technology only beat Wi-Fi by 12.2 miles.
Re:Proprietary != Better (Score:2)
And the only reason the Defcon guys didn't get 145 miles was that they couldn't reach the proper position to set up their equipment. The road ended two miles too soon and they didn't get the altitude they needed.
This story is a marketing stunt, nothing more.
Re:Proprietary != Better (Score:2)
(( oh, yeah, the DefCon records, besides strict verification, also have strict time limits. If the DefCon team didn't have time limits, they might have been able to tramp their way up the mountain to get the 144Mi record. If these guys want to b
Guiness (Score:2)
If they did do this - way to go. Hopefully it is a stable signal and not a flaky one.
Re:Guiness (Score:1)
Brilliant!
Re:Guinness (Score:2)
Re:Guinness (Score:1)
The Defcon records... (Score:4, Insightful)
-Adam
Re:The Defcon records... (Score:1)
Apparently this seems to be the general first post consensus: This isn't news, this is a fucking publicity stunt.
Re:The Defcon records... (Score:1)
Add this to the fact that they only used 2-foot dishes whereas the DefCon people used 12-foot satellite dishes... sure, the DefCon wins the coolness factor of homemade surplus parts, but the MicroServ people should be given credit where it is due.
I for one welcome our new wireless overlords... (Score:3, Interesting)
Re:I for one welcome our new wireless overlords... (Score:2)
Re:I for one welcome our new wireless overlords... (Score:2)
Competition for cable (Score:4, Interesting)
Too bad somebody beat me to the potato battery joke.
Re:Competition for cable (Score:2)
Re:Competition for cable (Score:2)
Re:Competition for cable (Score:2)
Apples & Oranges (Score:5, Insightful)
These guys: closed, proprietary protocol; 2.3Mbps link; no one around to verify facts.
As far as I'm concerned, the DefCon claim holds.
Re:Apples & Oranges (Score:2)
Another record (Score:5, Funny)
Re:Another record (Score:1)
What ad?
Your Pal,
Firefox+AdBlock
Hometown (Score:2, Insightful)
Re:Hometown (Score:1)
It's not so much of a record (Score:1)
Laser WiFi? (Score:4, Interesting)
Re:Laser WiFi? (Score:1, Insightful)
The earth is not flat.
Re:Laser WiFi? (Score:1, Informative)
Light would be scattered and attenuated even faster than the radio signal by everything from dust to water vapor. and things like Earth tides would throw off your alignment continously. the amount of power and focusing needed would be astronomical to carry a signal that far.
lasers work great when you can waveguide them in a controlled medium (ie fiber optics) but then we're back to being wired.
Re:Laser WiFi? (Score:2)
Re:Laser WiFi? (Score:3, Interesting)
Re:Laser WiFi? (Score:2)
It is true that the earth is curved. So what? So we bounce a WiFi laser off a satellite, and back down to the ground. 2.4GHz is also absorbed by atmospheric water, but we can choose other bands. So what? Isn't that an interesting problem? What passes for interesting to you? You always reply to uninteresting posts?
Re:Laser WiFi? (Score:2)
In 1491, we totally could. But that f'n Columbus guy went and messed everything up.
Re:Laser WiFi? (Score:2)
Second of all - the difference between a high gain (and thus very directional) antenna and a maser is nil - in both cases you have a narrow beam with a small beam spread (angle of divergence). No laser, no maser, no signal source of any type has an angle of divergence of zero - they ALL spread. This "long needle" of RF from a maser is no different th
Re:Laser WiFi? (Score:2)
Re:Laser WiFi? (Score:2)
And I never even said that masers were never useful - just not useful for what you are talking about.
And I never said that modulating a maser was not possible - I said that *tuning* a maser - i.e. changing the frequency, say from 802.11 channel 1 to 802.11 channel 10 - was difficult.
And a laser diode, like the
Re:Laser WiFi? (Score:2)
As for power, I didn't confuse it with voltage. I merely referred to the low-voltage fiber/comm lasers in contrast both to the high voltage (therefore high power at the same current) available to them in their wired chassis, and the (low voltage, low power) battery lasers. The point being that we'r
Re:Laser WiFi? (Score:2)
A LASER is a device operating in either the infrared band, or the visible band - say wavelengths shorter than 11 um.
A MASER is a device operating at microwave frequencies - roughly 1GHz to 1 THz.
First of all - for ANY EM radiation - RF, light, X-rays, you name it - the shorter the wavelength, the smaller a focusing setup you will need for a give divergence angle. That is why you can focus light with a very small (to us) lens and get a good collimation, but it tak
Re:Laser WiFi? (Score:2)
Wait a minute (Score:4, Funny)
Re:Wait a minute (Score:1)
Re:Wait a minute (Score:1)
Obviously Google is a willing conspirator!
-Go Vandals!
Re:Wait a minute (Score:2)
Not sure what's more impressive... (Score:3, Funny)
Re:Not sure what's more impressive... (Score:1)
I know you were being funny, but I assume you've heard of these guys... http://www.micron.com/ [micron.com]
But don't take my word for it: http://www.entrepreneur.com/Magazines/Copy_of_MA_S egArticle/0,4453,308612,00.html [entrepreneur.com]
Re:Not sure what's more impressive... (Score:2)
What is the praticality of all these records? (Score:1)
Licensefree AND legal? (Score:2, Insightful)
so - 200dB antenna just would be illegal. There's nothing with license-free since you in fact would violate laws and void your permission to use the bands.
Maybe that's unimportant since all that record has in com
Re:Licensefree AND legal? (Score:2)
Ham radio operators can use high gain antennas, but then you're using a licensed band (though the licensed 2.4 GHz band does overlap with the unlicended band.)
Really, if these people used the unlicensed band, and did not go under the ham radio rules, they probably violated the law. I don't know how upset the FCC would be about a 0.250 watt transmission that doesn't actually interfere with anything (I assume that's how much power they used) even if the ERP was much higher, bu
Re:Licensefree AND legal? (Score:2)
You're right!
A google search says the formula for theoretical dish gain is 20*log(7.4*FreqInGhz*DiameterInMeters). That matches some more google searching that says Arecibo (305 meters diameter) in Puerto Rico does about 70dB at those frequencies.
Solving for diameter in meters results in 563000000 meters, which is roughly the size of the moon's orbit.
Omni to Directional (Score:2)
Re:Omni to Directional (Score:1)
therefore, if you imagine the radiated field in 2d, if you open your spot 1, you'll radiate at tan(1) * 140 miles more space. so you'll lose a fourth of intensity- as you can see, theres a proportionality between intensity and opening anchor. so, with 360, you'd only get 1/90th of the power you could have. Not a good idea.
variable multi-antenna-sets are the way to go, anyways. A stack of diff
It's all a function of altitude. (Score:1, Interesting)
If you could place a Wifi satelite in orbit, you'ld be able to run an even longer link. It's not a matter of power, it is a matter of Line of Sight(LoS) and the freznel zone. If the shot was straight up, the distance would be incredible.
What Kind Of Record Is Involved Here? (Score:3, Insightful)
This would seem to be irrelevant to the Defcon record which was unamplified standard 802.11.
It's comparing apples and oranges, isn't it?
I suppose you can say it's a new "wireless" record, but then what about the Navy's ULF submarine communication methods? Aren't they "wireless"? And they go a lot further than 100 miles.
This seems like an advertising stunt to me.
Now, if only...... (Score:2)
Re:Now, if only...... (Score:2)
A moderately directive antenna will amplify the signal by 50 times at this frequency, and is commercially available for $100 or so.
Microserv Wireless Blows Hard (Score:2)
Correction: Not a Startup (Score:2)
Best world record in 2,3 Ghz band (Score:1, Informative)
or 16475 km if use the moon
http://www.ham.se/vhf/dxrecord/dxrec.htm#F [www.ham.se]
You only need more erp, bigger disk, more power, or slower speed to improbe S/N
Bragging rights (Score:1)
Mike
Hayden Lake, Idaho
Submission ain't exactly fair use (Score:2)
I guess it's small potatoes in the scheme of things, though.
Potatoes? No tech?? (Score:1)
Enough of these crappy stories! (Score:2)
If there was ONE cliche story I'd like permanently removed from slashdot, it'd be these "XXX beats previous wireless record by X meters" stories that seem to pop up every 2 minutes.
Nobody fucking cares. It's a total waste of my fucking time and this shit only belongs in the crappy blog of whatever unoriginal loser just beat the "record".
Clear?
Utterly useless (Score:2)
Apples != Oranges (Score:2)
Maybe I'm just cynical, but what's the big deal? If you want to talk distance records, my personal opinion is that the record to beat is about 250,000 miles, with full NTSC video. It was set way back in 1969, with a very
And what does this prove? Nothing. (Score:2)
Now a record I'd like to see - use your access point to establish a record for the most number of stations distributed over a wide area. That's useful.
Sprint used to have a service in the SF Bay Area back before DSL caught on. It was $50/mo, 10Mb, licensed spectrum in the S-band, used a pizza box sized antenna on a tripod on your root, an
Why is he modded down? (Score:1)
Re:Why is he modded down? (Score:1)
You could probably get the same service and price from cingular, too. Possibly better quality since newer cingular phones support Edge GSM.
Re:Publicity Stunt! (Score:3, Funny)
some weird, gang-style rivalry coming from a falling out between the founders might be quite slashdotworthy. Got one?
Re:Propriatary (Score:2)
The problem is, at what point does "wireless" mean anything at all?
The standard is 802.11. That's what the Defcon and other teams are working on. That's what people care about - extending off the shelf wireless systems.
Holding up another proprietary system as "wireless" - even it technically is - just to claim a record sounds like a marketing stunt to me.
Re:Um yeah (Score:1, Troll)
Re:MOD PARENT DOWN (Score:2)
Re:Why is this a post again? (Score:2)
Dude, why did you have to go and Bush-bash? It's off-topic, has no place outside of the Politics section and will, sadly, get you modded up to +5, Funny.
Your post was funny, but can people please stop with the insistance on anti-Bush daftness in every single damn story? Not singlng you out, this is a chronic problem. It has to stop. If you've read this far and aren't already reaching for the -1, Trol