Yes, I meant 60/15. I heard from many experienced telegraphers, that a speed which is too slow is a bad idea when start learning to code. And they're right: Now that I hear the first two "Koch-letters" in slower speed, it's absolutely no problem. Also the others.
So I'm a little bit confused now: What is the absolute minimum to start with? 20/10 is too slow, the sounds are really different. Would it help if I go back to 60/10?
What speed do you plan to be using. You won't find very many people going at 60 wpm.
What is your level of aptitude ( do you think )?
If you proceed beyond that then you will stall at the half way point.
Unless you know you have very high aptitude ( we don't know anything about you so we can't say )
you may be better advised to try 20/x or 25/x wpm and see how you go.
Drop x down to 5 if you need time, rather than drop out
To slow = maybe waste a bit of time. Too fast generally = start again slower - or more likely get fed up and give up.
The speed for a "first class operator" ( and a commercial operator ) is 25wpm.
20wpm is fine on the bands . . .
I'm a bit afraid of learning "the wrong sound". And I would like to learn the "right thing" from the beginning, even if it's harder in te beginning. Because unlearn and relearn something is the best way to quit. And I don't want to quit.
Thank you for your answers and your help.
For the first lesson you can get 90% just by switching character when you hear the morse change - but the chars won't have sunk in very well.
Are you typing in or are you writing down?
You may end up with a link morse -> keyboard key
morse -> letter
You are probably aiming to decode in your head rather than type-out or write-down
you are trying to build an automatic response . .
hear morse - letter pops into your head automagically.
This is not the same as just learning the letters. It takes time and lots ( and probably lots ) of repetition.
Most people with higher aptitude will wizz through picking up morse without too much effort - say a few weeks to 25wpm.
We won't hear from them, and so this forum is really for people who are not of high aptitude and who will need to work at it for a bit.
So we guess you are in that category . . .