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
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…