Editing Diurnal phase shift

In [[telecommunications]], '''diurnal phase shift''' is the [[Phase (waves)|phase shift]] of electromagnetic signals associated with daily changes in the [[ionosphere]]. The major changes usually occur during the period of [[time]] when sunrise or sunset is present at critical points along the path. Significant phase shifts may occur on paths wherein a reflection area of the path is subject to a large tidal range. In [[Electrical cable|cable]] systems, significant phase shifts can be occasioned by diurnal temperature variance.

==See also==
*[[Terminator (solar)]] - "grey line"

==References==
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*{{FS1037C MS188}}
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[[Category:Radio frequency propagation]]


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