Ask HN: How Belarus can keep connected despite internet blackout?

Re:Ask HN: How Belarus can keep connected despite internet b... by speedgoose on Wednesday August 12, 2020 @03:43AM (#24129545)

You need to be careful with long range radio solutions. Radio waves sources are very easy to locate with cheap equipment. Wifi/Bluetooth is perhaps better since it's already everywhere, but the range isn't good.

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Re:Ask HN: How Belarus can keep connected despite internet b... by philprx on Wednesday August 12, 2020 @04:27AM (#24129729)

Watch out, Wifi and Bluetooth and any radio source can be located (with direction finding, Time Difference on Arrival, ...).

It's sometime a bit more difficult: with spread spectrum technologies for example, widely used wireless technologies that work well in dense usage. It works also on cellular networks (2G, 3G, 4G, 5G).

Just so people don't get a false sense of security with some solutions.

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Re:Ask HN: How Belarus can keep connected despite internet b... by izik on Wednesday August 12, 2020 @04:02AM (#24129620)

Thanks, I'm aware of that - that is why I was thinking about low cost (say cost of Raspberry Pi) and distributed. When it is low cost - there is grater chance that large number of nodes can be deployed and single point of failure can be avoided.

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