0007 ABSTRACT

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ABSTRACT

This work has two specific divisions: The first studies the relationship between the amount

of lightning region in which the AMAS is closer to the surface compared to other regions

outside the ”dip” of inner Van Allen belt. The second is the variation of probing radio propagation

radio frequency in the range of 7.00 MHz, influenced by the conditions ion of the

upper atmosphere, which in turn are influenced by solar activity.

Key words: radio, monitoring, measurements, noise, ionosphere, solar cycle.