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by
Ciro Santilli
(@cirosantilli,
25
)
Very low frequency (VLF, 100 to 10 km, 3 kHz - 30 kHh)
wiki
Notably used for communication with
submarines
, so in particular crucial as part of sending an attack signal to that branch of the
nuclear triad
.
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Why can't you send voice without modulation?
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