3 ms·
CQ is instantly recognizable to us, so is SOS even though most of us have never heard over the air. SOS of course would be recognizable to almost anyone whereas
by hilbert42 3y ago
CQ is instantly recognizable to us, so is SOS even though most of us have never heard over the air. SOS of course would be recognizable to almost anyone whereas CQ requires at least some Morse training.