6 ms·
If you want to see a lot of HF signals, field day is this weekend: http://www.arrl.org/field-day http://www.arrl.org/field-day
by wwkeyboard 9y ago
If you want to see a lot of HF signals, field day is this weekend: http://www.arrl.org/field-day http://www.arrl.org/field-day