The Amateur Radio Project - Propagation

# Propagation

### Question 29 of 30

- i The heights of the ionospheric layers are constant
- ii The D-layer is always present

1. i and ii are both true
2. i is true but ii is false
3. i is false but ii is true
4. i and ii are both false

1 | 2 | 3 | 4

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