G3B02 (A)
Which of the following is a good indicator of the possibility of sky-wave propagation on the 6-meter band?
A. Short skip sky-wave propagation on the 10-meter band
B. Long skip sky-wave propagation on the 10-meter band
C. Severe attenuation of signals on the 10-meter band
D. Long delayed echoes on the 10-meter band
