[ADXA] QSL ITU terminology

[Scott Branyan]

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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