History Of CQD And SOS
CQD, transmitted in Morse code as — · — · — — · — — · · is one of the first distress signals adopted for radio use. It was…
Ham Radio, Fun Facts, Open Source Software, Tech Insights, Product Reviews
CQD, transmitted in Morse code as — · — · — — · — — · · is one of the first distress signals adopted for radio use. It was…