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To explain the situation further, I want to give the example of my university. There is only one wireless network throughout the campus; you connect to it once and move freely from one place to another without having to reconnect to the network. This is the kind of roaming I am looking for. Do they use huge antennas to achieve the task or do they use repeaters? And if they use repeaters, how come they don't need to have different SSIDs?
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