Or if you were British, Decca Navigator (the same thing)
In an adversarial world, with fibres being cut and satellites unreliable it's possible this kind of close water coastal navigation mesh may be more useful again. Or differential GPS land repeaters.
In an adversarial world, with fibres being cut and satellites unreliable it's possible this kind of close water coastal navigation mesh may be more useful again. Or differential GPS land repeaters.
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