Critical frequency

In telecommunication, the term critical frequency has the following meanings:

Critical Frequency changes with time of day, atmospheric conditions and angle of fire of the radio waves by antenna.

The existence of the critical frequency is the result of electron limitation, i.e., the inadequacy of the existing number of free electrons to support reflection at higher frequencies.

单词	Critical frequency
释义	Critical frequency 英语百科 Critical frequency In telecommunication, the term critical frequency has the following meanings: Critical Frequency changes with time of day, atmospheric conditions and angle of fire of the radio waves by antenna. The existence of the critical frequency is the result of electron limitation, i.e., the inadequacy of the existing number of free electrons to support reflection at higher frequencies.
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