How can I Make a Wireless Network upto 3 Km of Range? But the problem is that nearby should not be any device between Transmitter and Reciever!
That technique at hand should be simply two devices.
Answers:
Easy, look at the Wireless WAN solutions surrounded by the blackbox directory (www.blackbox.co.uk) they do radio / infrared and laser wireless solutions that own fitting length, FOR A PRICE !
Other than that, VPN over internet connections is best bet.
Get two of these.
http://www.broadbandbuyer.co.uk/shop/sho...
Install dd-wrt on it
http://www.dd-wrt.com/wiki/index.php/mai...
Get two of these
http://cgi.ebay.co.uk/24dbi-high-gain-di...
Set these routers up at points a and be, set one up as the access point (default) the other one in client bridge mode
http://www.dd-wrt.com/phpbb2/viewtopic.p...
Direct the antenna at respectively other precisely using landmark or what not.. and past its sell-by date you travel.. It might be a weekends work but the experiance is categorically worth it. I've done it a year or so ago connecting my internet nouns to another meet people that be shared by a few of my friends.
If you want to do it cheap, you can brand your own antennas. But i'd suggest you spend some money cuz antenna making is an art on its own. I hold even so to master it myself.
Thats what im in the proccess of trying to do. I am waiting for some stuff i bought to come in the letters. I am individual doing it to see how far i can make out and see everbody's wireless networks. A little ethical hack never hurt anybody.
I get a wireless card for my laptop that have an external antenna nouns, afterwards from nearby i bought a 1 Watt wireless amplifier that plugs into a 12 db gain omnidirectional antenna. I don't know how much distance i'll achieve but i'll consent to you know.