Wifi use outdoor

Post by **LittleBit** » Thu Jun 11, 2009 3:50 pm

Wifi is working fine indoor.
But my knowledge is too limited for WiFi and outdoor.
If I want to use WiFi outdoor, for example on a farm
(radius about 3 km).
How should be the strategy ?
Select 2,4 or 5 GHz ?
What kind of antennes are needed ?
Should I use a central antenne or should I place the anttenes at the outside to prevent interference ?
Any suggestions ?

With best domotica regards,

Post by **Noel** » Thu Jun 11, 2009 4:07 pm

I do not think that with any standard WiFI AP you will get a 3 km radius.
You could add a directional wifi antenna on both sides (AP and client), to make it maybe work at 3 km's (not really 3 km radius)
As WiFi is working in the 2.4 / 5Ghz freq. making the "waves" really small, nothig really big (like a house) can be in the middle, or the signale will be really low / lost.

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Post by **LittleBit** » Thu Jun 11, 2009 10:33 pm

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by wifi
 I do not think that with any standard WiFI AP you will get a 3 km radius.<hr height="1" noshade id="quote"></blockquote id="quote">
Several buildings are in that area, so it is possible to use several antennes (anybody familair with a rule of thumb for the sizes of the segments),
of if somebody knows if meshing is possible with WiFI, that would be possible also.

With best domotica regards,

Post by **tijmen** » Tue Jun 16, 2009 4:25 pm

There are several people active in making wireless networks in city's. They are facing the same challenges as you. Therefore you should have a look at their projects. Wireless Leiden (http://www.wirelessleiden.nl/) is one of the oldest and most experienced. I think you can find a lot of answer there.