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Wireless Ingenuity in San Diego
Supercomputer center pushes technological barriers
(old news - 08:25PM Wednesday Nov 13 2002)
tags: wireless · alternatives
As an expansion of the Newsfactor article on solar powered broadband hardware posted yesterday, Computerworld is running an article that takes an expanded look at the work of Hans Werner-Braun, a researcher at the San Diego Supercomputer Center and principal investigator for the San Diego County High Performance Wireless Research and Education Network (HPWREN). Apparently Werner-Braun is involved in more than just solar powered equipment, his most recent accomplishment being a 72-mile, 2.4-GHz link from San Diego to San Clemente Island.

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Forums » Wireless Ingenuity in San Diego
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Omega
Displaced Ohioan
Premium
join:2002-07-30
Cheyenne, WY
clubs:

Thats a long way

it is good to see that they can make wireless go so long, now all they need to do is make it faster. 22mbps is still a bit slow.

SirDaShadow

@adelphia.net

Re: Thats a long way

ok...solar power...SEVENTY TWO MILE RANGE....and 22MBPS and you SAY it's slow?????????

man grow up...

NS4683

join:2000-08-25
Hoboken, NJ

Re: Thats a long way

72 miles is good, but did you look at the map in the link? it's mostly over water. there's really no trees or buildings to get in the way. I would like to see how far they can get it to go on land, maybe the rural midwest areas can use that as a broadband alternative.
cmaenginsb
Premium,MVM
join:2001-03-19
Palmdale, CA

Re: Thats a long way

Actually water shots are harder to do as the water acts like a giant reflector at those frequencies. You end up with multiple signals being recieved and the radio now needs to distinguish which one is the valid one.

Count Hogula$
Notorious Dog
Premium
join:2002-06-19
Corona, CA

Not only that but there is nothing on San Clemente Is. other than a few goats and the U.S. Navy. It is a restricted area. So of course not only is there no interference over the water but nothing on the Is. either.
--
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. -Thomas Jefferson

DrTCP
Yours truly
Premium,ExMod 1999-04
join:1999-11-09
Round Rock, TX

It is illegal!

This link is most likely exceeding 36dBm EIRP limit set by FCC. As someone pointed out in slashdot the antenna they are using probably has again of >6dBi which is the max. FCC allows at 1W transmit power. So, say a typical dish is 24dBi with 1W (30dBm) transmit power the EIRP is 54dBm.

said by FCC (click here for more):

b) The maximum peak output power of the transmitter shall not exceed 1 Watt. If transmitting antennas of directional gain greater than 6 dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6 dBi.

Count Hogula$
Notorious Dog
Premium
join:2002-06-19
Corona, CA

Re: It is illegal!

Since the island is run by the U.S. Navy (it's a restricted area) I'm sure the FCC isn't going to arrest anyone.

DrTCP
Yours truly
Premium,ExMod 1999-04
join:1999-11-09
Round Rock, TX

Re: It is illegal!

So the goverment is allowed to break the rules?

Not exactly the lawful, example setting type of government that I would like to see.

Count Hogula$
Notorious Dog
Premium
join:2002-06-19
Corona, CA

Re: It is illegal!

It's against the law to own a cruise missile and a nuclear submarine but the U.S. Navy gets to break those rules too.

DrTCP
Yours truly
Premium,ExMod 1999-04
join:1999-11-09
Round Rock, TX

Re: It is illegal!

said by Count Hogula$ See Profile:
It's against the law to own a cruise missile and a nuclear submarine but the U.S. Navy gets to break those rules too.
The armed forces are licensed to own and use those toys so there is no comparison. As far as I know there is not a special provision in the FCC ruling granting armed forces special exception of exceeding legal power limits.

Armed forces are granted exclusive ownership of certain frequency bands and they can use them as they wish. But, when they are using a civilian band they should respect the rules set for the band as well (again unless otherwise specified or licensed by the FCC)

Besides it looks like it is not even the armed forces operating this link illegally it is the construction company working for them.

Government or not. Nobody should be above the rule of the law. This used to set us apart from the 3rd world countries where laws does not seem to apply to the governing body.

Count Hogula$
Notorious Dog
Premium
join:2002-06-19
Corona, CA

Re: It is illegal!

The armed forces aren't licensed to own anything...they just do it. They have radar that uses the same frequencies as other radar but with power way above what is normally permitted by the FCC. Unless there is a complaint...the military should do what it pleases. And even if their is a complain...the duties of the military outweigh the duties of civilians.

For instance...there are speed limits for airplanes when they are in a TCA, air-air, air-ground proximity limits etc...but the military doesn't have to obey those FAA regulations. They're the military.

I mean hell...I see cops illegally parked running radar or patrolling a carpool lane with only 1 deputy in the car.
--
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. -Thomas Jefferson

DrTCP
Yours truly
Premium,ExMod 1999-04
join:1999-11-09
Round Rock, TX

Re: It is illegal!

said by Count Hogula$ See Profile:
The armed forces aren't licensed to own anything...they just do it. They have radar that uses the same frequencies as other radar but with power way above what is normally permitted by the FCC. Unless there is a complaint...the military should do what it pleases. And even if their is a complain...the duties of the military outweigh the duties of civilians.
Military is there to serve a civilian regime.

Military being military does not give any excuse. They have to answer civilian authority. If they have reasonable need for certain frequencies or modes of they should be authorized for that.

Protecting the country also means protecting the laws and institutions of the country and respecting the rules and laws. Otherwise, you quickly become a military dictatorship.

Now if armed forces are breaking the laws knowingly and on purpose shame on them and shame on our institutions that fail to address the issue.

BTW, there are procedures set up between FAA and Military air operations regulating the flights of military planes. It might be less restrictive wrt civilian aircraft but it does not mean there are no rules there. They do that because they are granted for that.

ThirdShifter
Premium
join:2002-03-16
Vernon Rockville, CT

Re: It is illegal!

Ever been in the military?
--
do you yahoo!

aitech
Guru. Kneel

join:2000-12-19
Boston, MA
clubs:

Re: It is illegal! Are you kidding!?

This is a funny thread...

The Gov't breaks the "rules" all the time.. who are you kidding.. Next time you see a cop illegally parked in front in front of the doughnut shop, or speeding down the road, or running a red light because he doesn't want to wait for the rest of us, or using some stupid technicallity in the law to catch somebody doing something else, next time you see a congressman illegallily accepting money from a tobacco company to keep cigaretts legal.. etc etc etc

I could do this all week.. I think the "gov't" breaks more "rules" and more often then most crooks combined. And if you disagree, you've gotta be kidding me..
--
1536/384 Covad. 1380/360 actual. 20-60ms pings. Great!!Was a BITCH to install 60+ days and 100+ incompetent moron's along the way, but it's GREAT and SOLID now.. GO NYY!!
russotto

join:2000-10-05
Collegeville, PA
If the government could operate under the restrictions it sets for the common people, there'd have to be a lot fewer restrictions. That would be intolerable to the government.

DrTCP
Yours truly
Premium,ExMod 1999-04
join:1999-11-09
Round Rock, TX

Re: It is illegal!

said by russotto See Profile:
If the government could operate under the restrictions it sets for the common people, there'd have to be a lot fewer restrictions. That would be intolerable to the government.
Government is not above the law and order. If they need special provisions for special purposes they should get that written in the law and regulations.

Omega
Displaced Ohioan
Premium
join:2002-07-30
Cheyenne, WY
clubs:

Re: It is illegal!

Its not like they are killing people. All the are doing is making a big wireless network, I can see why you disagree with what they are doing, but it is really no big deal.

Neactom
Why Me?

join:2001-05-03
Hampton, VA

Re: It is illegal!

the government owns their own vast spectrums of frequencies i'm pretty sure they have full control over everything that goes on inside of those ie ENCRYPTION OR BREAKING FCC RULES

nekote

join:2000-12-16
Hopkinton, MA

72 Miles - over the horizon ?

Ummm, isn't 72 miles *way* over the "horizon" - way beyond "line of sight"?

Using one (or more?) reflections / bounces with the ocean water / atmospheric layers?

San Clemente / San Diego have a high peak permitting greater range?
--
Democracy is the worst form of government, except for all other forms of government. - Winston Churchill

Count Hogula$
Notorious Dog
Premium
join:2002-06-19
Corona, CA

Re: 72 Miles - over the horizon ?

said by nekote See Profile:
Ummm, isn't 72 miles *way* over the "horizon" - way beyond "line of sight"?

Using one (or more?) reflections / bounces with the ocean water / atmospheric layers?

San Clemente / San Diego have a high peak permitting greater range?

Actually on a very clear day...you can see the mountain tops of San Clemente Is. from the Cali coast.
--
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. -Thomas Jefferson

crane
Premium
join:2000-12-31
Sebastian, FL

neat stuff

The company I work for has a field office in Coronado Island that is using one of those WLAN's... tiny little dish mounted up on the trailer roof. Its smoking fast... makes T1 look like 56k. The reason they went with the radio signal is because they are on a navy base doing a construction project and high speed internet and networking options are limited when you are "in the field".
--
dirt rules

gogeta6

join:2002-06-20
San Diego, CA
clubs:

Pretty fast

My group actually uses this network to bring back seismic from stations in the oposite direction. I'm not sure about the link out to the island, but I know at least one of the transmiter/receivers is on top of Mt. Solidad, which would extend its line of sight significantly. Also its not 22 mbps it 45, and that's tied into the schools OC48 back in sdsc. It started I beleive at least in part as a publicity thing giving indian reservations nearby internet access, but for researchers out the field to have wireless access at 45 mbps is pretty sweet.
djrobsd

join:2002-01-24
San Diego, CA

Technology is good.

Ahh.. I love living in San Diego.. Seems like we get a lot of cool tech toys down here first...

And by the way, for those of you attacking the government breaking the rules, give it a break!!! It's just scientific research, and I'm glad someone is finally making some GOOD use out of this wireless technology, maybe in a few years we consumers will benefit from it!
davisnet

join:2002-11-15
Canyon Country, CA

Re: Technology is good.

said by djrobsd See Profile:
It's just scientific research, and I'm glad someone is finally making some GOOD use out of this wireless technology, maybe in a few years we consumers will benefit from it!
Way to go djrobsd!!!

Testing wireless connections is far more useful and safer than testing nukes...

Finally something useful might come from this gov't...
Wolvnmastr

join:2002-11-16
Niagara Falls, NY

First of All...

Since this is a media released article(s) then the possibility of the Military NOT having permits to go above the FCC regulations is highly unlikely. Yes, I know that there are times that the Military doesn't stay within regulations without permits, But do you think that these instances would be Highly publicized? And considering the amount of publicity that this is getting, and probably knew how much it would get, that the military had the proper paperwork in order (and probably in triplicate) before going ahead and exceeding the limitations listed above?

steve1

@rr.com

Lessons learned

I don't know if they use the same or similar technology but I have Broadband Wireless in San Diego from a company called »www.skyriver.net . I know that this article was posted a number of years ago but these guys rock, my business gets a 2.5meg link from them and they are really fast.

Is it similar?
I know that the distance is different but is this how it is done?
Forums » Wireless Ingenuity in San Diego


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