G3C05 : Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?
A
The F region absorbs signals at these frequencies during daylight hours
B
The F region is unstable during daylight hours
C
The D region absorbs signals at these frequencies during daylight hours
D
The E region is unstable during daylight hours
Correct Answer: The D region absorbs signals at these frequencies during daylight hours