G2A09 : Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?
A
Lower sideband is more efficient than upper sideband at these frequencies
B
Lower sideband is the only sideband legal on these frequency bands
C
Because it is fully compatible with an AM detector
D
It is commonly accepted amateur practice
Correct Answer: It is commonly accepted amateur practice