[ADXA] QSL ITU terminology

[w5zn at w5zn.org]

Excellent memory, Steve,

I have a good collection of old ARRL license manuals, even the very 
first and second one published and after I read your post I had to take 
a look and YES, A1A is mentioned prominently in them.

Joel

On 2022-04-21 11:52, Steve, W5KI wrote:

> Agree Joel (and Scott),
> 
> My memory is rough, but seems the questions on the exam(s) in those 
> days referred to A1A for testing knowledge of frequencies and modes 
> allowed.
> 
> But I'm could be wrong on what those stone tablets said, hihi.
> 
> Steve, W5KI
> 
> On 21-Apr-22 12:33, w5zn at w5zn.org wrote:
> 
> 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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