What does HF/DF stand for?

HF/DF stands for "High-Frequency Direction-Finding"

How to abbreviate "High-Frequency Direction-Finding"?

"High-Frequency Direction-Finding" can be abbreviated as HF/DF

What is the meaning of HF/DF abbreviation?

The meaning of HF/DF abbreviation is "High-Frequency Direction-Finding"

What does HF/DF mean?

HF/DF as abbreviation means "High-Frequency Direction-Finding"