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...engineering and maintenance, the evolution of navigation aids, and safety protocols and procedures. ...affic pattern]] chart (left) was erroneously printed as a result of "black layer" 180° misplacement. The corrected chart is on the right.]]

===Physical characteristics=== ...he layer and is coordinated by each 3 arsenic atoms in the upper and lower layer. This relatively close packing leads to a high density of 5.73&nbsp;g/cm<su

...tecture, G.9960 addresses Layers 1 ([[Physical Layer]]) and 2 ([[Data Link Layer]]). [[Category:Network protocols]]

..., specifies the Physical Layer and the architecture of G.hn. The Data Link Layer (Recommendation G.9961) was approved on June 11, 2010<ref name="dllapproval G.hn specifies a single [[Physical Layer]] based on [[fast Fourier transform]] (FFT) [[orthogonal frequency-division

[[Category:Physical layer protocols]]