09-09-2011, 09:54 PM
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Join Date: Sep 2011
Location: Bay Area, CA
Mulitple APs in a mesh or wds configuration would be a good way to go for a project like this. One thing to keep in mind is wireless is a lot like sound, both devices need to be able to hear each other in order to communicate. So trying to cover a large area with one AP and high gain antenna may provide signal to a large area but when you have small handheld devices that are not high power and do not have high gain antennas, they do not have the power to talk back to the AP, thus the reason for multiple APs.
In most cases I recommend sector/panel antennas over omni directional antennas as well, not only will sector/panel antennas provide higher gain but they will also help to cut down on noise and interference being picked up.
As mentioned by another member above Proxim is a good choice, they have an out door ready AP, AP-4000-MR-LR. Its a dual radio so you can use one radio (2.4 GHz) for distribution to your handheld devices and the second radio (5.8 GHz) to mesh the APs to each other.
Btw, what handheld devises are you using?