What does QSL? stand for?

QSL? stands for "Can you acknowledge receipt?"

How to abbreviate "Can you acknowledge receipt?"?

"Can you acknowledge receipt?" can be abbreviated as QSL?

What is the meaning of QSL? abbreviation?

The meaning of QSL? abbreviation is "Can you acknowledge receipt?"

What does QSL? mean?

QSL? as abbreviation means "Can you acknowledge receipt?"