Quote:
around $13,000 each


If money is no object, why not use a microwave relay? It's longer range, provided you've got line-of-sight, and, while it's not standard networking gear, it is standard telecoms gear.

Mind you, I don't know how much it costs; it just strikes me as less jerry-rigged than trying to string a bunch of 802.11 gear across the landscape.
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-- roger