Need Long Distance Wireless Connection

[PolaroidPaul]

I volunteer at a museum in Maine and I need to connect several building together with a wireless connection. The max distance is about 1500 feet but I cannot get high enough to avoid all trees and branches. Some connections are clear line of sight but others need to plow through branches.

I have read about directional antenna systems etc but need more practical information from someone with real life experience.

Can any of you help?

 

[andrewsdw]

There was a great book I found in the library about 3 months ago on this. Can't remeber name sorry. Basically distance comes from 2 factors alone...power output and the gain on the antenna. The FCC limits the radios to a certain limit but you can make a VERY high gain antenenna pretty simple and cheap! Anyways, the whole book was all about wifi and how to make your own antennas for cheap and the different kind plus has photos of all projects! One project for their long distance version was to go like 30-40 miles or something! Anyways go to the library and check it out.

 

[JackMDS]

May be this can Help: Wirelessly Bridging Home / SOHO Network.

Link to: Hi Gain Antenna for Entry Level Wireless.

:sun:

 

[PolaroidPaul]

I will take a look see at the links.

Anybody else have actual practical experience? Or know some other sites to check out?

Paul

 

[ScottMac]

If you do not have line of sight, you will not be able to communicate.

Organic material & water (especially water ... as in living plants & such) drink up this frequency faster than Teddy Kennedy at a free-booze party; you couldn't put out enough RF at a safe (or legal ... ) level to power your way through.

If you can't go above the trees, how about below? Do you have LOS below the tree level (but above human level)?

Otherwise you're stuck with trenched fiber, possibly an alarm circuit using a T1 line driver.

FWIW

Scott