Il semblerait que cette portée puisse être augmentée dans de telles conditions (absence d'obstacle, épaisseur de l'air moindre...) Info, intox
Citation:
The physics of Wi-Fi and Bluetooth are a bit different at altitude, with no intervening obstacles other than the aircraft's skin.
While Apple's published data on Bluetooth and wi-fi note a range of 30 feet, both Bluetooth and Wi-Fi have significantly longer ranges at ground level even with obstacles. Presumably, the thinner air, the line-of-sight, and lack of notable RF shielding increase the range on the technology at that altitude.
While AppleInsider couldn't directly confirm the authenticity of the transfer as depicted, we spoke to a former naval aviator who has transitioned to commercial flight. He confirmed to us that this is not all that uncommon amongst pilots, and he has done it at approximately the same range and altitude on more than one occasion.
http://appleinsider.com/articles/17/08/04/video-shows-pilot-sending-image-from-iphone-to-second-plane-at-35000-feet-with-airdrop