Diane Bruce VA3DB2d ago

Someone asked me about the difference between Morse code and Morse code. ;)
I remember receiving a book on Samuel Morse years ago when I was a teenager and the table confused me to no end until I learned the difference. ;)
It would have been so much less confusing had they labelled it Vail code but that's not what happened eh?

https://morsecodeconverter.net/american-morse-code-vs-international-morse-code/

#AmateurRadio #hamRadio #Morse #CW #Vail #MorseCode #AlfredVail #SamuelMorse

Show threadAbraxas3d W5NYV2d ago
@va3db wait, where is the punctuation?
Show threadDiane Bruce VA3DB2d ago
@abraxas3d oh good point!
Show threadAbraxas3d W5NYV1d ago

@va3db thank you for posting this. I'm trying to figure out some telegraphy stuff that I didn't know about, based on reading this article!

I think we get to the same place that RTTY gets, where you have to have a different "case" and re-use the symbols, because you literally run out of ways to name the symbols? If we want umlauts etc. then we can't have question marks etc unless we organize it. The way RTTY does it is to have a control character to switch between reused sets of encodings.

Show threadDiane Bruce VA3DB1d ago
@abraxas3d Well certainly for Murray code (Baudot) we also have to shift for numbers. It's a tradeoff. 7 bit ASCII is less noise resistant than 5 bit Baudot. UTF with 32bits would be hard which is why we have UTF8.
Show threadAbraxas3d W5NYV1d ago
@va3db I have to think that we can take all of the letters and diacriticals and come up with an upper bound. Then, we list off all the punctuation. Then we figure out how many sets we need?
Show threadAMS
@abraxas3d @va3db That's how you end up just huffman encoding like PSK31.
Mar 26 at 3:50amWeb