Outdoor Bridge - Non Line of Sight

[Matthew Swanson]

Hello,

I'm looking for a way to bridge a data connection to a home we are building from another building we own approximately 3.2 km away.

According to a path profile tool I found online, location A sits at 250 m, and location B sits at 268 m, so a little higher.

There are trees and some buildings between the two locations, but no industrial buildings - it is pretty rural.

What is my best bet to bridge the two locations? I've found conflicting information about what line of sight, near line of sight, and non line of sight options are out there.

As I mentioned, it is pretty rural, so our options are limited. If I could find some wireless antenna/bridge solution, even if expensive, it would be great (depending on how expensive - hundreds is easily doable, thousands would be debatable, and tens of thousands would not be).

Any creative solutions would be appreciated - I'd really like to avoid hiring an engineer to come map this out for me.

 

[bill001g]

You are getting near the limits of the technology. Most systems that use unlicensed bands are line of site. When you start to go the distance it does not take much to degrade the signal even fog.

First the antenna and radio are not going to be real expensive. 24db gain antenna with outdoor bridge directly mounted to it is you best bet. There are many brands on the market not sure if any is better than the other.

The largest issue you have when you go distance like this is the ground absorbing the signal. There is a mathematical formula based on the frequency that shows how much loss the ground causes. This gives me a headache to even half look at.

You can get a free standing 50ft tower for under $1000. Depends where you live if that gets you above most stuff or not. Of course that is the cost of the tower you still need to dig a hole and mix lots of concrete.

Just a couple of sites that sell stuff like you need not that they have your solution, I have actually purchased things from both companies.
http://www.texastowers.com/
http://www.wlanparts.com/