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The point is, if a school that suspends students for swing-dancing can allow its students unfiltered internet access, how conservative would this college have to be to censor its internet access for religious reasons?

http://www.wwc.edu/~frohro/Airport/Primestar/Prime star.html

I prefer war-reaping and war-threashing myself.

Go Wolves!

Here's an article about using a surplus Primestar Dish to make an IEEE 802.11 wireless antenna http://www.wwc.edu/~frohro/Airport/Primestar/Prime star.html
Here's another one. http://www5.cs.cornell.edu/~eckstrom/802.11a/prime star/

As the first article notes, there are some FCC rules about antenna use within the US. Would the Defcon product be within these limits? The Wired article didn't seem to say.

The formalists thought it was a "game" -- which is to say a formal system interesting mainly because of the relations between various components in the system.

Unfortunately, that was only fun for a little while until Gödel's Incompleteness Proof successfully proved that not all truths of arithmetic could be proved using the rules of arithmetic. The result generalizes.

So the real question here is "Are all sports games?" If so, and it seems quite reasonable, then quite objectively the answer to "Is mathematics a sport?" is no. (Ok, so only if all games are formal systems...)

Calvinball does not count.

Here is a link

Satellite dish and a can or Satellite dish and a Bi Quad

I'm not suggesting that we do away with basic arithmetic or variable assignment. You can't do that and still have a programming language.

Well you could place your access point somewhere outside, this if all rooms face one side. You could also try to focus using dishes. (I like this one: I like this one) , though i would see a problem in using only one access point.

The redundant link to the outside has been found!
What do you think is used if a backhoe cuts the fiber!

That's not really a satellite antenna on the roof it is a " 802.11 dish "

He's going to have no luck getting a signal from 15 miles away with a yagi wi-fi antenna, which, according to my understanding only have range in the hundred-yard range. Instead, find an old satellite dish and get ten mile or more range depending on the network you're aiming for. Find some cooperative folk and put up one at their network and you'll be getting good bandwidth until someone sneezes between the two antenna.

But it could be Rotterdam, or Liverpool, or anywhere you roam.
'Cause Rotterdam or Liverpool sell net just through the phone... you're gonna need a loan."

Your ISP has you in a pickle, 'cause they're in a pickle too!
They oversold 64-kay-baud, and now you're down to two!

This could be Rotterdam or Liverpool or anywhere you roam
'Cause Rotterdam or Liverpool sell net just through the phone... you're gonna need a loan."

You try to get some DSP, you thick the line will hold,
but the DSP line stops 10 meters short, so bud you're in the cold!

This could be Rotterdam or Liverpool or anywhere you roam
'Cause Rotterdam or Liverpool sell net just through the phone... you're gonna need a loan."

So then you line up for a sat, install a Primestar dish
But your line of sight is almost gone, latency isn't what you'd wish...

This could be Rotterdam or Liverpool or anywhere you roam
'Cause Rotterdam or Liverpool sell net just through the phone... you're gonna need a loan.

You just bought Worldcom for your netphone."

Some links:

KI7cx dish
Primestar dish
Bi-Quad feed for primestar DIY
10 Euro dish with biquad feed
Modifying Confier Antennas for Wireless Networking

More info: Wireless Leiden

I haven't seen this mentioned yet, but the Associated Students of Walla Walla College are aiming to create a complete student activities portal. It currently includes a book exchange, ride finder, mugbook, voting system, etc, etc. You can download most the content and email them for the rest. Check out http://as.wwc.edu for more info. (note: /books/ is where the book exchange is...it's not well marked)

Try one of the GNU mirrors:

http://gnu.sunsite.utk.edu/software/gnuradio/image s/hdtv-samples.html

http://gnu.wwc.edu/software/gnuradio/images/hdtv-s amples.html

http://gnu.mscnetworks.com/software/gnuradio/image s/hdtv-samples.html

http://www.phildowd.com:4060/software/gnuradio/ima ges/hdtv-samples.html

Basically, append software/gnuradio/images/hdtv-samples.html to any of the links from here: http://216.239.57.100/search?q=cache:1KyAbWv9nRAC: www.gnu.org/server/list-mirrors.html+gnu.org+mirro rs&hl=en&ie=UTF-8

Great read, but somehow I picture something like this mounted on a 40' mast.
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Some of the math and physics teachers at my school got together and took some pictures through telescopes with real solar filters of the eclipse. They are pretty good, you can see sunspots and stuff.

Just for the record, while you usually think as 802.11 as being relatively limited in range, its really not. For instance, a Primestar dish can be used as a directional antenna and get a supossed 10 mile range. I've also heard of a Pringles can being used similiarly. (Those were the first hits on google, there are many more resources.) My point is that its not just "war drivers" you need to be concerned about, but the guy two blocks away but with line of sight too. For about $10, you can build a directional antenna, and the rest is just a matter of time.

Second, people have done the Primestar dish thing before and report 22db gain with it, not 30-50.

Third, according to the ARRL antenna handbook, the 200" optical receiving antenna known as "Mt. Palomar" has 148db gain. Frankly, I don't think anyone's satellite dish compares to this (or could, at microwave frequencies)

Remember, 100db gain means 10 million watts of effective radiated power for every milliwatt of input power.

Antennas with over 30db of gain simply are not that common.

I go to Walla Walla College, where if I am not mistaken we use these hacked airports you mentioned for wireless access around campus, and they don't quite reach 11 miles, more like a few hundred yards.

I go to Walla Walla College, where if I am not mistaken we use these hacked airports you mentioned for wireless access around campus, and they don't quite reach 11 miles, more like a few hundred yards.

yes

You neglect to mention the fact that many 802.11b cards nowadays support 128-bit WEP encryption. This is much better security than the unencrypted links that people (stupidly!) leave open. Granted, it isn't nearly as secure as fiber, but I think that 802.11b with a high gain antenna would probably be in this school's best interests. You can even check out http://www.wwc.edu/~frohro/Airport/Primestar/Prime star.html for a page that tells how to use an old Primestar dish for a 10 mile full 11mbps link, and http://www.antennasystems.com/broadband.html has a list of lots of different antennas that might also be helpful.
If you can tell, I've been doing a lot of research for antennas for my home 802.11b LAN... :P

Well, one solution is to use an external antenna which amplifies the signal. I know someone did this with an airport and increased the range by a factor of three.

There is also a special mode to make several access points communicate.

In fact, there are several wireless channels available, so the bridges do not interfere with wireless clients.

Why must people keep coming out with things that make me feel like I wasted the ~$600 I spent building a wireless to wired router/bridge out of one of these (the 1030N if you are wondering). Granted I could have saved some money if I had be brave enough to try to use a DiskOnChip instead of buying a 2.5" HDD...

Oh well, when I built it I still think it was cheaper than any of the other available solutions. Except of course for the P-133 box it replaced...but I wanted something that would sit on a shelf in the garage very unobtrusively.

BTW: here is the box sans hard drive.

http://www.wwc.edu/~frohro/Airport/Primestar/Prime star.html

• 802.11b Range Boost
  
• Yagi Antenna Design
  
• Build a dish antenna for $10!
  
• This server is running over a 10-mile 802.11b link
  
• Nokia Rooftop Technology
  
• community-supported, sustainable wireless nets
  

The juice can antennae at the bottom of the primstar link is just the latest evolution of the old tin can telephone that I remember from my youth.

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According to an Airport Hacker Page... You can get around +- 3 miles (4800 KM). You might need to come up with your own hack. Try increasing the power for the antenna. Or you could try a PrimeStar Sat Dish. Problem is I don't know the range on these things and they are extreme directional sensitive.

Well I don't know moose about app development kits (I personally don't have much faith in all this distributed computing layered application design crap - Client/Server forever!). But I do know a bit about game development, although (don't lynch me!) it's mostly Windows/Dos stuff. here goes nothing :

Gamedev.net
Game programming resources (huge link list)
CDX DirectX wrapper


Well.. it's a good start for newbies, or when you're just too tired to code a weighted anti-aliased Bresenham's algo. =)