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by mbell 5116 days ago
Latency would be huge with that setup. 900mhz radio has more than enough range and bandwidth to handle 50,000 - 60,000 devices updating several times a second. I've used LSR [0] modules in the past for prototyping and they have a gateway that would allow you to control the entire thing through ethernet so any computer could run the program and just spit out ethernet packets to send control information.

[0] http://www.lsr.com/