I was travelling on a plane (so I’m presuming 600 mph?) and, of course, Bluetooth earphones worked fine with my tablet. Though I guess we were in a vacuum.
If you were outside the plane travelling at that speed, would the earphones still be able to connect to the tablet?
Does relative speed affect the connection, or is the only important factor the distance between the two devices?
In addition, how far would it work in space? 😆
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The only things that matter are distance between devices, their speed relative to each other, and if there any obstacles between them.
Signal strength reduces with square of the distance, so if the distance gets 2x larger, the signal goes 1/4th weaker. Technically, the signal never really dies out: no matter how far away, it’s still there. But it becomes harder and harder to detect that weak signal.
Walls reduce passing signal, depending on material. Metals reduce most signals by a lot, so the plane’s hull (made from aluminum) should be almost impenetrable. But signal can still pass through windows, so I think your earphones would still connect even outside the plane (but you may loose reception if you hide between windows).
The relative speed changes “color” of the signal. If the receiver moves towards the source, it sees it more “blue”, if it moves away – more “red”. The effect is quite small and Bluetooth auto-corrects for color slightly. However, if the relative speed is very big, the signal can go out of “Bluetooth color range” and become invisible for the device.
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