Региональное широковещание через атмосферный сетевой уровень

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RFC 6217. T. Ritter. Regional Broadcast Using an Atmospheric Link Layer. 1 April 2011

4. Physical Layer

The physical layer used is made up primarily of nitrogen and oxygen, at a pressure of 101.3 kilopascal at sea level, but dropping to about half that pressure at operating altitudes. Microscopic residue or trace elements may exist in the transmission medium, depending on local formation properties.

This residue may include argon, carbon dioxide, neon, helium, chloride anions, sulfur dioxide, and other molecules occurring at very low mixtures. It is common for there to be some degree of gaseous dihydrogen monoxide present. These trace molecules usually do not impede the broadcast, although further details on datagram transmission follow.

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               Figure 4: Skytyping Method in the Sky