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Another good point, and one I thought about before replying, but that doesn't make microwaves slower, it makes them inapplicable.

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In theory having fewer repeaters improves latency, probably in the range of 100ns per repeater. I don't know how much of a practical effect that has, likely very minimal with modern implementations.

Either way it's more sensible to build high throughput microwave networks given the tiny amount of shortwave bandwidth we have.

I bet it's way lower than 100ms for this application. Single digits. Maybe less.

I wrote 100ns, and meant an analog repeater. Full digital regeneration is probably in the 1-10μs range.

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