It’s actually quite simple. I always thought it was difficult and you’d have to learn from a code sheet, but I found an app which teaches you and you actually just recognise the sounds like you’d recognise any other sound. You generally don’t even need to decode it- you just get used to what a letter sounds like. I’ve been learning since Saturday and can already key my name out.
How do you read the recieve diagram?
It’s a flow chart. If you want to decode a morse letter then start at the star at the top and at each junction either follow the dot or the dash until you arrive at the corresponding letter.