Anonymous User

Hamboozler

Logging in (or registering) will help the system to select questions that you need to focus on.

G3B12

Which of the following is typical of the lower HF frequencies during the summer?

SelectAnswer
AHigh levels of atmospheric noise or static
BWorld-wide propagation during daylight hours
CHeavy distortion on signals due to photon absorption
DPoor propagation at any time of day