[ADXA] QSL ITU terminology

[w5zn at w5zn.org]

That's interesting Scott.

Back in my Novice days in 1972 and a few years beyond I saw that quite 
frequently on  QSL cards and other documents to indicate CW. I had not 
thought about it but I guess that sort of disappeared over the years. 
For me it is nostalgic to see it once again !!!

Thanks for sharing.

Joel W5ZN

On 2022-04-21 10:17, Scott Branyan wrote:

> Received a nice return QSL card from Paco in the Canary Islands this 
> morning for a QSO we had in February. Under mode, he filled in "A1A" to 
> indicate CW. I see that is ITU classification for method of modulation 
> (double-sideband amplitude modulation), nature of the modulating signal 
> (one channel containing digital information, no subcarrier), and type 
> of information transmitted on the carrier signal (aural telegraphy, 
> intended to be decoded by ear, such as Morse code).
> 
> https://en.wikipedia.org/wiki/Types_of_radio_emissions
> 
> Never seen that before. It's cool, and I am sure CW ops love it for its 
> superior way of expressing Morse code--A1A :-).
> 
> Always something to learn.
> 
> 73,
> 
> Scott/W5AAJ
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