What does QUA [call sign]? stand for?

QUA [call sign]? stands for "Have you news of [call sign]?"

How to abbreviate "Have you news of [call sign]?"?

"Have you news of [call sign]?" can be abbreviated as QUA [call sign]?

What is the meaning of QUA [call sign]? abbreviation?

The meaning of QUA [call sign]? abbreviation is "Have you news of [call sign]?"

What does QUA [call sign]? mean?

QUA [call sign]? as abbreviation means "Have you news of [call sign]?"