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voip telephony. Looks like the $400 a year cell phone bill is here to stay... DAMN IT I DON'T EVEN LIVE IN THE U.S.!

Download and read the book. This applies to just the VOIP that Comcast provides in it's triple play package. If you use a third party VOIP solution, it is outside the scope of the offer. If you think you are protected by using a cell phone...
It is time to look at what the government contractors are selling to your government.
http://www.antennasystems.com/trapandtrace.html
This device works without even notifying the cell company, unlike a wired trap and trace. No court order needed unless you want to either be legal or use the evidence in court.

Cell phones are less secure than wired connections. Get used to it. It's a sniffable radio signal. You don't have to get permission to connect to the airwaves... (legaly maybe, but not technicaly)

Hence, you put a slim, shielded tube over the distance you want to transfer. At each end of the tube is a transmitter/receiver. With further research it might even be possible to bend these tubes, so they go around corners etc. This would solve all the problems identified.


This tube has a name and has been in existance for many years. It's called a waveguide.
http://en.wikipedia.org/wiki/Waveguide
http://www.microwaves101.com/encyclopedia/waveguide.cfm

Drawings of some waveguides are here;
http://www.uniquesys.com/products/passive/waveguides/s111_2.html?gclid=COyF1u6coo8CFSI4YAod20h_aQ

You can buy eliptical waveguide here for frequencies up to about 22 GHZ.
http://antennasystems.com/ewassy.html
and rectangular waveguide up to 40 GHZ here.
http://www.antennasystems.com/waveguide.html

Hence, you put a slim, shielded tube over the distance you want to transfer. At each end of the tube is a transmitter/receiver. With further research it might even be possible to bend these tubes, so they go around corners etc. This would solve all the problems identified.


This tube has a name and has been in existance for many years. It's called a waveguide.
http://en.wikipedia.org/wiki/Waveguide
http://www.microwaves101.com/encyclopedia/waveguide.cfm

Drawings of some waveguides are here;
http://www.uniquesys.com/products/passive/waveguides/s111_2.html?gclid=COyF1u6coo8CFSI4YAod20h_aQ

You can buy eliptical waveguide here for frequencies up to about 22 GHZ.
http://antennasystems.com/ewassy.html
and rectangular waveguide up to 40 GHZ here.
http://www.antennasystems.com/waveguide.html

We have had great success in buildings with thick walls.

We use directional antennas such as these and these to get very high signal strengths and low noise.

We use this antenna to go between buildings. These also work great for long distances.

With two of those antennas, we have spanned 2400 feet (and we are planning a similar setup to span a distance of 5 miles).

Don't give up -- there are easy solutions to thick walls.

The article says the guy got it from AntennaSystems

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

i don't know what the legal power limit is for the 2.4ghz public band...but as long as no one complains, chances are you will have no problems.

this place has everything and it's probably all legal

this place has lots of cloices for high-gain antennas and good prices

build your own bi-directional 2.4ghz amplifier!!

802.11b tips and tricks from o'reilly