The Amateur Radio Project - Propagation

# Propagation

### Question 25 of 30

During summer periods, high ionisation can occur in the

1. D-layer - known as ‘sporadic D’
2. B-layer - known as ‘sporadic B’
3. F-layer - known as ‘sporadic F’
4. troposphere - known as ‘tropospheric shift’

1 | 2 | 3 | 4

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