Question

question 13 of 15
which wave type reflects off - charged particles in the earths ionosphere during skywave propagation?
select the correct response
high frequency radio waves (3 - 30 mhz)
ultra high frequency waves (300 mhz - 3 ghz)
extremely high frequency waves (30 to 300 ghz)
microwaves (1 - 100 ghz)

Explanation:

Sky - wave propagation involves the reflection of radio waves off the ionosphere. High - frequency radio waves (3 - 30 MHz) are the ones that reflect off the charged particles in the Earth's ionosphere during sky - wave propagation. Higher frequency waves like UHF, EHF, and microwaves pass through the ionosphere rather than reflecting.

Answer:

High Frequency Radio Waves (3 - 30 MHz)