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by dmlittle
2383 days ago
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> Do they work underwater? Bluetooth frequencies are absorbed (not sure if this is the right term) by water since the bluetooth frequency and water's resonant frequency is the same. This is why covering a bluetooth beacon with your hands drops the signal strength significantly (water in your hands absorbs most of the signal). Submerging a bluetooth device will probably significantly decrease the signals strength even if the device survives the submergence. |
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