What does QHN stand for?

QHN stands for "Altimeter Sub-scale setting"

How to abbreviate "Altimeter Sub-scale setting"?

"Altimeter Sub-scale setting" can be abbreviated as QHN

What is the meaning of QHN abbreviation?

The meaning of QHN abbreviation is "Altimeter Sub-scale setting"

What does QHN mean?

QHN as abbreviation means "Altimeter Sub-scale setting"